STRUCTURE

The single tube type is usually for racing specification. Why does HKS make it for street specification?

HKS goal of suspension development is to have a perfect damping force in every situation of the driving environment. Thats why HKS make the suspension in a single tube model. Its true that the single tube type was born in the racing world. It also means that single tube type is the best for the driving a automobile. Because the racing world is the toughest driving environment, it proves the single tube to be the best. Thats why HKS choose the single tube type for HKS suspension. However, they are costly structure to produce and difficult to design. Thats why many other suspension makers gave up on this type of suspension production. But, HKS has everything from designing to packaging which make it possible to produce great products at a lower cost.

I heard that the single tube type cannot have enough stroke volume compared to multi tube type. Doesn't that mean the single tube type is less comfortable than the multi tube type?

It is true that the multi tube type has more stroke volume than a single tube type. But, it doesnt mean the bigger stroke volume has a better suspension performance. The single tube type has two rooms of oil and gas, and the piston moves inside the oil chamber which produces an ideal damping force. The cylinder is in the outside of a chamber so the oil lasts long which results in a longer life of the suspension.

Is it true that the single tube type is less durable against outside impact than the multi tube type?

It is true that the single tube type is less durable than the multi tube type. However, the roads in these days are paved, and it does not usually happen that something may cause the suspension to break. Also, HKS makes the suspension with very hard materials. So HKS is sure this suspension is safe to install.
Then what the impact from the side? Single tube type is an inverted type. It can be durable against the impact from the side. The single tube type needs very detailed work in a seal. This kind of precise work can produce a strong and safe suspension.

What is the piston valve? What are the advantages?

Piston valve is the part in the tip of the piston rod. It moves up and down while driving, and the oil flows into the piston and orifice that is a hole oil flows in. The piston valve is the heart of the damping. When the damper gets a force from the road, the piston goes up and down inside the cylinder, and it generates a damping force by the flow of the oil. By setting the volume of the pressure, oil flow and valve timing control the oil flow. This is the most difficult step in developing a suspension. There are totally different settings for each situation like D1 drift, street drive, circuit race, drag, etc.

How does the oil flow passage effect on the damping force?

With the single tube type, a piston area can be enlarged. Enlarged piston area can increase oil flow passage. Increasing oil flow passage allows smoother oil flow and enables the damper to generate proper and stable damping force. However, just increasing the oil flow passage does not deliver efficient oil flow. It is important to calculate the best oil flow passage for more efficient oil flow by figuring out the best balance with other internal parts. As mentioned in Q4, maintaining the best oil flow is very difficult. The oil flow passage shape must be designed exclusively for each vehicle model based on each damping force characteristics; therefore, there is no perfect flow passage shape. As long as pursuing for "Feelable Performance = Ride Quality", further improvement of the flow passage shape should be sought. For those who get tired of ordinary feeling from the stock suspension, various ride feeling must be offered. To deliver ride quality as a driver desires, it becomes a key to arrange the ride feeling.

For Sporty Driving

It is my first time to purchase a sport suspension. I am looking for a sport suspension that can lower the ride height, but the ride quality is still high for daily driving as well as circuit driving. Which type of HKS suspension is recommended?

No extreme low-stance, but moderate low-stance, a good ride quality for daily street driving, and sportiness and supple ride quality while driving on winding roads or cornering at a high speed; these are the required characteristics. MAX IV GT is recommended. This is an ultimate street suspension that lowers the ride height for stylish appearance and provides a good all-round performance.

I am looking for a suspension for high performance sport driving in a circuit using high-grip radial tires with a good ride quality. Which type of HKS suspension is recommended?

A suspension surely informs a driver of road surface conditions through tires and shows high performance during severe cornering; additionally, comfortable ride without annoying thrust feeling is wanted while going to a circuit. MAX IV SP is recommended. This is a shock-body length adjustable sport suspension that is appropriate for high performance sport driving and reduces the unwanted thrust feeling.

I bought a luxury car for my family. Which type of HKS suspension is recommended for mature and sporty performance?

Better ride comfort for street driving, supple but reliable driving performance while driving on winding roads or cornering at a high speed and the ride height for stylish appearance are required characteristics. MAX IV GT is recommended. This is a luxury sport suspension that is designed according to each vehicles characteristics for the best settings for each vehicle model.

I am a drift enthusiast. I am looking for a suspension designed especially for drifting

Usually, a suspension for drifting is stiff making it easy to lose the traction. However, it wont allow maintaining high speed and performing a long drift at the right angle. With enough traction to sustain the vehicle movement, suspension should provide a driver with ability to have a complete control over the vehicle. HIPERMAX D NOB SPEC is recommended. This is a suspension that is able to maintain high speed while drifting, and at the same time provide enough traction and ability to control a vehicle. DNOBSPEC concept is a suspension to make drifting easy for anyone.

For Mini Van, Wagon, and Compact Cars

I bought a wagon for my family. I am looking for a suspension that can lower the height slightly for better stance and offer a comfortable ride. Which type of HKS suspension is recommended?

What you are looking for is a suspension that can adjust the ride height as you like and provide stable driving performance during changing a lane, passing over the joint of the road, and going down a slope while braking. HKS is offering HIPERMAX G, HIPERMAX S-style C, and HIPERMAX S-style L. The vehicle appearance, better ride comfort and driving stability after installing this product are satisfiable for minivan and wagon owners. HIPERMAX G is the OEM design suspension, HIPERMAX S-style C is the shock—body length adjustable type, and HIPERMAX S-style L is 30-way adjustable dampening type.

What are other advantages of modifying a car to a lower stance besides improving its appearance?

Modifying a car to a lower stance can improve handling because the unstable behavior of a car can be reduced; therefore, a driver does not get too tired after long distance driving. Also, it may restrain and/or prevent carsickness of vehicle passengers in second or third-row seats. As another advantage, lowering a vehicle height allows the easy getting-on/off of a vehicle.

Compact car is usually economical and good for street driving as well as sport driving. Which type of HKS suspension can derive its original advantage from the stock suspension of a compact car?

To utilize the original advantage of a stock suspension, the vehicle height should be adjusted to a preferred level to improve its footwork, and there should be no upthrust or floating feeling. HKS Hipermax S-style C is best for a compact car; S-style C can provide better ride comfort and has appropriate characteristics not only for street driving but also for sport driving.

Larger wheels, aero parts, and low stance give wagon cars a more aggressive appearance; but, there is a risk of damaging the wheels or aero parts by lowering the vehicle height. Which type of HKS suspension can avoid this risk?

To improve the appearance of a minivan and wagon car, the aero parts, larger wheels, and low stance are must-have items. But, for a minivan or wagon car with the aero parts and larger wheels, the vehicle height must be lowered properly to maintain the ride comfort and its style, and the damping force must be properly adjusted to avoid excessive stroke that may cause damage to the aero parts and wheels. HKS Hipermax S-style X is the one for cool low stance. S-style X can adjust the vehicle height properly, and its damping force is adjusted properly so there is no risk of damaging the wheels or aero parts by lowering the vehicle height.

Overhaul & Specification Change

I am using Hipermax damper. Recently, it does not respond well, and there is a strange sound from the damper. Is it time for an overhaul on the damper?

Yes, HKS recommend an overhaul for your damper. Also, overhaul is recommended when unsteadiness during lane change on highways and/or oil leakage is noticed.
Suspension uses many consumable parts, and several ten thousands of times strokes in driving distance of one million kilometers constantly generate and radiate heat, which cause degradation of oil and sealing. To maintain the high performance of HKS suspension, HKS provides overhaul service.

Is spring rate change of Hipermax series available?

The spring rate change for the straight spring and barrel spring is available. Please see the table below for the rates available to change.

Vehicle Height Adjustment

Does a tire protrude from a fender after a shock-body length adjustable damper is installed to a vehicle?

When using tire wheel at the end of the fender (Tsuraichi) for the stock damper or stock type damper, the tires may come out of the fender because all usually, shock-body length Adjustable damper length adjustment type damper is larger than stock damper. After installation, it tends not to fit well for negative direction of the chamber. This symptom may be seen in the following vehicle models: AZR60(NOA/VOXY), JB5/7(LIFE), C25(SERENA), GD1(FIT). Usually, if a vehicle is lowered, the chamber tends to shift to the negative direction, and the tires move toward the fender. However, for some vehicles, a tire may protrude from a fender.

SUPER HYBRID FILTER

Is there right direction for filter setting?

Yes, there is.

How often should I change my filter?

About 6 months to 12 months or 6000km to 10,000km distance.

SUPER POWER FLOW R / RACING SUCTION R

What is the old POWER FLOW that can't change the filter?

How often should I change my filter?

Dry type: About 6 months to 12 months or 6000km to 10,000km distance.
Wet type: About 3 months to 6 months or 3000km to 5,000km distance.

OB-LINK TYPE-001

About OB-LINK

What is the installation procedures

1. Download and install app to an applicable device.
2. Connect the OB-LINK to the OBD II coupler. Make sure to insert the connector till the red and green LEDs on the unit blink.
3. Establish a connection by pairing between the OB-LINK and the device (cellular phone or tablet PC).
4. Turn the ignition on.
5. Start the app and from the SETTING menu, set the "Device Setting" and "Vehicle Connection Type".
6. When settings are complete, the red and green LEDs will blink. Mount the OB-LINK unit on the safe place where it doesnt distract driving.

OB-LINK cannot be connected.

Make sure if the red and green LEDs on the unit turn on or blink.

1. If both red and green LEDs on the unit are not on;
   Disconnect the OBD II coupler from the OB-LINK and reconnect it to the unit.
   (The LEDs go off since the low-voltage-consumption mode will be activated after 2 minutes the unit is remained unconnected or not operated.)
2. If both red and green LEDs on the unit are on;
   Cause 1: Connection is not established.
   Establish a connection by setting your device. Passkey is "7181".
   Cause 2: Device setting is not correct or not completed.
   Make sure "OB-LINK" is selected for "Device Setting" of "Setting" in the app.
3. If the red LED stops blinking, and the green LED is blinking;
   Vehicle connection type setting is not correct.
   Make sure a correct type is selected for "Connection Type" of "Setting" on the app.

Can I use my mobile phone while using Ob-link?

Yes, you can make call or send and receive email.

Can I use other Bluetooth device while using Ob-link?

Yes, you can.

"Paring" cannot be complated.

Check to see if Bluetooth of your device supports SPP profile. Even with SPP profile, some of devices cannot be paired with OB-LINK due to the individual difference of the device

Paring is completed, but no communication with OB-LINK.

Check to see if Bluetooth of your device supports SPP profile.
OB-LINK uses SPP profile for Bluetooth connection.
If your Android is not an SPP Bluetooth device, Bluetooth connection cannot be made.

About CarscopePlus

Which version of OS is required?

Android 6.0/iOS 9.0 or later is applicable

Can the app be moved to a SD card?

Yes, you can.

Why Carscope and OB-BRIDGE are separated for Android?

Carscope is to display the vehicles information sent from the OB-LINK.
OB-BRIDGE is the app to perform the setting communication setting between the OB-LINK.

Accelerator angle is not 0% even the gas pedal is not applied.

The displayed value is not the actual accelerator position. The value of the ECU(Engine Control Unit) is recognizing displayed.
Depending on a vehicle, the accelerator angle appears even no accelerator is applied.
2 lineage vehicles may show a big difference between the accelerator angle 1 and 2 due to the same reason described above.

Needle moves slowly.

Data between the OB-LINK and Carscope are updated every 20 [msec]. However, some vehicles ECUs take longer than 20 [msec] to update the data. Since the needle moves based on the data sent by the ECU, a needle may move slowly.

What do I have to do if I see an error code?

An error code notifies a driver of an abnormal condition of the engine. If you see any error code, please consult with the dealer immediately.

Carscope does not show any error code even the CEL comes on.

Restart the app.
For the vehicles connection type "HONDA1", the error code will be checked only when the app starts. This is because of the vehicles connection system.
The error code connection will be continuously checked for the type other than "HONDA1".

Is it possible to see how Carscope works before buying the OB-LINK?

Carscope has the demonstration mode. Try the demonstration with your smart phone or tablet PC.

History list does not show all driving data.

If the driving distance is more than 2km and the automobile speed is faster than 20km/h, the data will be saved.
However, if the driving distance is less than 2km, or automobiles max speed is less than 20km/h, the data wont be saved.

Can I see the driving data in an Excel?

Yes, you can with Carscope Ver. 1.10 (2012/09/25). You can export to a CSV file.

• Select the data you want to export to CSV from the History and save to your table.

DMR-200D (Direct Multi Recorder 200D)

About Installation / Use

TV signal disturbance usually occurs when a unit is installed close to a TV antenna. What about DMR?

Digital terrestrial broadcasting on TV and 1-Seg digital TV can be watched even the DMR unit is installed 10cm from the TV antenna.

Is installing the unit on the windshield not violating the road traffic law of Japan?

No, it is not violating the law of Japan. Under the road traffic law of Japan, the unit can be installed in the area 20% from the upper side of windshield.

Doesn't using a continuous power cause a dead battery? What is the function of the continuous power connection unit?

Variable cutoff feature allows continuous operation of the unit while the car is not running but switch off the unit when the voltage falls below the set voltage for 10 seconds to protect the battery.

Is it OK to use "microSD card" available on the market?

The SD memory card included in the product must be used.
A microSD card available on the market may work, but the product performance cannot be guaranteed.
(It is recommended to use SanDisk microSDHC card or micro SDXC card (4GB-64GB).)

Is maintenance of a microSD card required?

Yes. A long-term use of a microSD card may cause disability of information writing. To avoid this, check the data in the card regularly and format the card at least once a month.

Can data from the unit be displayed on a monitor for a navigation system or similar device?

Yes, if the provided external output AV cable is used.

Is there any way to check a photographing state and appearance after installing the main unit and second camera?

Basically, the recorded image is supposed to be checked on a PC. But, the real-time image can be seen on a monitor in a vehicle by connecting the unit using the provided cable to output data.

About Second Camera

Is it OK to install more than one second camera?

No, only one second camera can be installed to one main unit.

Is it OK to install the second camera in a vehicle's exterior?

No, the second camera was designed for indoor use. The camera is not waterproof and dustproof.

When outputting data to a monitor, is the images from the main camera only able to watch?

Images from the second camera can be output as well. Images to watch can be selected by switching a main unit switch.

Are the main camera and second camera working on the same time base? Is shooting "CAC" by the second camera for measuring a lap time possible?

Yes, both cameras synchronously work on the same time base.

About Viewer Software

How should the G-sensor be viewed? What is XYZ?

XYZ shows the numerical value of G. X shows G in front and back (+: acceleration / –: deceleration). Y shows G in right and left (+: right / –: left). Z shows G in up and down (+: up / –: down).

Is this viewer software available for Mac?

No, it is currently not available for Mac.

Is it possible to see the moving image in reproduction by the viewer software in a full screen display on a PC?

No, it is not possible.

Is reproduction of the moving image saved in a microSD card possible when the unit is connected to a monitor for a navigation system or similar system?

No, it is not possible.

About GPS

When a GPS signal cannot be received during use, how is "Google Map" displayed?

"Google Map" displays from the point a GPS signal is received again.

Is the past driving line able to be compared with the current one on "Google Map"?

No. Comparing the past driving lines with the current one is not available.

If the main camera is installed improperly, is the unit still able to receive a GPS signal?

The unit may not be able to receive a GPS signal properly since it is designed to install on a windshield in correct orientation.

Others

Is DMR-200D able to connect to "CAMP2" or "Circuit Attack Counter"?

At the present moment, DMR-200D cannot be connected with other products.

When are the data in "Always List" and "Event List" overwritten?

When "Always List" is overwritten depends on the capacity of a memory card. When the capacity is full, the data are overwritten in chronological order.
"Event List" is overwritten in chronological order when the data exceed 400MB.

EVC7 (Electronic Valve Controller 7)

EVC7 Map ON/OFF

Default factory setting is OFF. Map will be ON when dialing switch between A and D.

OFF

ON
(When EVC is turned on, "A, B, C" in red circle appears.)

How to display the vehicle speed, engine RPM, and throttle angle.

1. Wiring

Connect the throttle signal harness (brown) and vehicle speed or engine RPM signal harness (green) with the vehicle side signal harnesses

2. Display setting
   Shipping display setting for throttle open, vehicle speed or engine RPM are not shown. Please follow the setup instruction below to show then in the main display.

Default factory setting is Easy mode. Please change setting to Pro mode from Menu.
Please open the Correction Map and select input signal for Map.

Please open the Status of Menu and select Main Screen Type B.
Selected input signal will be shown in each Map.

The "Warning" is not working even the boost exceeds the warning value setting.

Sometimes, the boost instantly goes up like an overshoot passing the warning boost setting because of the boost start up characteristic. The Warning functions when the boost pressure exceeds the warning value with in a set time.

Error messages is qppeared.

Please check the relay harness or power supply harness. And check the power supply position or ground wire point of the power supply harness.

The boost pressure does not rise as being set.

The EVC boost control may not work properly if a new part is installed. If the boost control fails too much, reset the EVC and do the initial setting again. Otherwise, the pressure leakage may occur due to disconnection or slit of the pipe.

Why are there 4 modes A, B, C, D? Which one of the A/B/C/D is for a high boost?

4 modes can be individually setting up for normal boost or high boost. A/B/C/D doesnt mean the boost level of each modes.

What is the Scramble Boost?

Scramble boost is one of EVCs functions that is effective for a race or competition that requires the instand boost pressure increase. Under Scramble Boost, more boost pressure adds to the normal boost setting. Therefore, the engine tuning to endure the scramble boost is required.

Can EVC lower the boost?

The boost cannot be lowered than the vehicles lowest boost setting (boost pressure setting of actuator and wastegate). However, for a stock vehicle with a boost pressure solenoid, sometimes, the boost may be lower than a value before EVC is installed when the EVC is OFF.

Can I install EVC in my KEI-car? Can I install it in my diesel car?

Yes, if the car has 12V actuator or wastegate and turbo with boost pressure control.

Can I buy just control unit or valve unit?

No, they are not available for sale.

Can EVC control overshoothing?

Changing the offset setting value or MAP function, can make some difference, but, reconnecting the pipes may work better. shorten the length of the hoses, especially 4 hose. Also, Taking the 6 chamber pressure from surge tank, may cause overshooting. Even after all the settings are corrected and adequate, overshooting still occurs, then it may be the vehicles characteristic.

How the engine hunting stop?

Reset the sampling time. If the engine hunting continues, connect the ?4 hose to where more precise surge tank pressure can be taken, or use the orifice or a longer 4 hose to stop the engine hunting.

The maximum boost pressure does not reach to 300kpa.

It could be because of the vehicle specification. The boost pressure may not go up to 300KPa because of the specification of the wastegate spring or the capacity of the turbine or the engine.

Boost cut and knocking occur.

If the boost pressure is increased more than the normal, the vehicles boost-cut is activated by the fail-safe system. In that case, use a boost cut cancel device such as FCD. But settings using a fuel increasing device is required to prevent engine knocking, detonation, etc, that may result in engine damage.

The boost value of 2nd gear and 4th gear is different.

A lower gear driving and a high gear driving has a different driving load; therefore, the boost pressure level is different. Please set the boost pressure with EVC at a high gear such as 4th.

EVC is not controlling the boost, and the boost doesn't go up.

Check the piping and exhaust bypass switch setting. If the stock max boost setting and initial boost setting are the same, the boost pressure cannot be controlled since EVC cannot recognize the boost characteristics properly. Check the initial setting values using Easywriter.

After installing EVC, the boost pressure doesn't go up as being set.

If there is a specification change for the vehicle, please check the normal boost and reset the boost in each mode.

The value shown in the meter and EVC is not the same.

Both the meter and EVC must take the pressure from the same place. If the difference of the EVC and meter is within the 10kPa, it should be within the tolerance range.

Do I have to use the air filter?

To prevent the oil from entering into the valve unit, the air filter is required. And, if dirt built up is noticed, change the filter.

The boost level is set to 130KPa with EVC, but the boost drops to 100KPa. Can EVC fix this?

Depending on the certain specification of vehicle, turbine or actuator characteristics, the boost pressure sometimes drops at a high RPM. EVC can control the boost pressure drop to same extent, but upgrading other parts such as an actuator may be required.

Surging occurs.

Surging tends to occur with the recent turbocharged vehicle models. Map function prevents surging; however, surging cannot be stopped completely. Upgrading other parts may be required. It could happen because of the certain specification of vehicle, turbine or actuator characteristics and etc. Then you might replace or modify parts to fix it.

The display screen is not clear to watch.

The screen is the most visible when looking from the front. The screen could unclear pale because of the angle. Please adjust the angle of the monitor for a best view.

Setting cannot be changed.

The "Data Lock" function may be on. Turn off the data lock.

The boost pressure is increased excessively.

Check the exhaust bypass selection switch is matched with vehicle type. Also, check the short-circuit, wire disconnection, miss-wiring, etc.

With MAP function, the RPM cannot be taken properly.

-Check the wires positions and cylinder setting.
-If the RPM signal is output to multiple tuning parts, the RPM signal voltage may reduce so EVC cant recognize the signal.

With the MAP function, the throttle open angle seems to be wrong.

Check the wiring position and all-open or all-close throttle setting.

RPM or throttle opening are not displayed even after wiring is done.

Set the MAP function. It will display signals in the MAP function with Map axis. The signals set as the map axis should be displayed.

The scramble boost is not working.

• Check the scramble time setting. If the scramble time setting is too short, the scramble could be canceled before the boost pressure goes up.
• Settings of the vehicle side may prevent the boost increase. Try the A/B setting to see if the boost pressure increase to the target boost pressure.

What's the difference between a stepping motor and solenoid valve?

Solenoid valve has only 2 conditions, "ON" and "OFF". The interval of the ON and OFF controls the boost. The stepping motor can adjust between ON and OFF. This can control the boost pressure more precisely.

What can the EasyWriter do?

With Easywriter, simple and precise data editing is possible by the MAP function. Also, the logger function is available during the boost setting.

TURBO TIMER

Does it work with my car which has the immobilizer installed.

Yes, it works for a vehicle with immobilizer. The immobilizer is usually used as a key only for engine start, so it doesnt interfere with turbo timer function.

Is there anything else other than timer harness for installation?

Some Nissan Automatic cars need key lock release adapter which prevents from key gets stuck when turbo timer is in use.

The Turbo Timer is on but vehicle does not do after-idling. What is causing this?

Please check if the gray colored timer wire (parking brake wire) is properly wired.

I am trying to install Turbo Timer, could you tell me correct wire colors?

Basically, you need a timer harness for your vehicle, and these color of wires are;

• Blue: Vehicle speed signal wire (for type 1)
• Brown: RPM signal wire
• Black: Ground wire
• Gray: Parking brake signal wire

Can I use my remote control key with Turbo Timer for my car?

It depends on the vehicles.

Automatic function is not working properly; I can improve only 5, 6 seconds.

Automatic mode works by detecting the engine RPM and depending on the engine operating conditions. It will automatically perform setting in every 0 to 5 minutes. In this situation, often the rotation signals from coupler of the key cylinder is not detected. Please connect the stock CPU RPM signal wire and the brown timer wire and see if it works.

After installing Type-1, the vehicle speed and engine RPM shown on the displays are not correct.

If the stock tachometer and Turbo Timers display are too different, "learning" is required.

I don't know which version my Turbo Timer is. Is there any way to find it out?

Check the 3rd digit of the serial number.

• "0" = Turbo Timer Type-0
• "1" = Turbo Timer Type-1
• "2" = Turbo Timer Push Start Type-0

Does the optional stock security system work after installing Turbo Timer?

It depends on the vehicle.

What is the auto door lock system?

Its the system to lock all the doors when it reaches a certain speed (usually 20km/h) and unlock the doors when the automobile stops, hazard switch is on, when engine is stopped, and when the select lever is put into "P". For automobiles with this system, Turbo Timer may not function properly.

What is the "Key free system" or "Smart entry key system"?

This is a system to open the door when the driver comes close to the vehicle and lock the door when the driver go away from to the vehicle. Also, this system opens/closes the door by pushing a button on the door. With this system, the engine starts without inserting a key to the key cylinder.

VELOCITY ADVANCED COMPUTER

Does the shift feeling change after installing VAC? Is it readily noticed?

VAC starts functioning at 180km/h or over; VACs unique AT control is performed. Under VAC control, shifting gears becomes smooth with high response without power reduction which can be experienced during high speed cruising.

Is installation difficult? How I connect the wires?

Installation is not really difficult since wiring is simply done by connecting wires using couplers. However, it involves removal of a negative cable of a battery which requires the initial settings for the power window, back guide monitor, etc. Also, modification of the ECU box is required (except for VAC type S). It is recommended to ask a professional for installation

Where the main unit should be mounted?

Install VAC type S to inside the ECU box where is located in an engine compartment. Other types must be secured to a foot space part on the passengers seat side by installing the harness and pull it from the ECU box where is located in an engine compartment

What are possible factors of the malfunction such as the CEL, engine stall, etc

Make sure if the harness couplers are tightly inserted. Improper installation may cause malfunctions

SPEED LIMIT DEFENCER

Is there any adverse effect by installing SLD such as fuel efficiency?

It depends on stock ECU program condition, but basically there is no influence. There was no case of engine failure because of the SLD usage.

What is the SW setting in the manual? What do I have to do?

It’s about switch in the SLD. SLD has to set the right switch for the your automobiles.

I did all the SLD installation, wirings, switch setting and still can't disable limiter.

If you set the switch after IG-ON, the setting might not be executed. Please make it IG-OFF and try again.

I have bought and installed the SLD TYPE II and my AT car seems to have some problem.

Please check the wire settings of solenoid A and solenoid B, if its ok, it might be the swtichs setting. Please check for these settings again.

There is no wires in the place where the manual indicates!

For some cars, ECU is in the engine compartment. Please check the manual and do the wiring to the ECU.

Where should I position the device? Is the device ok with high temperature? (For some cars)

Please set in the ECU box with the double sided tape. If you put the device inside the ECU box, the high temperature will not be any problem.

Can SLD pass the Automobile inspection (Japanese)?

Yes you can. Please follow the traffic rule and drive safely on the road.

What happens to the stock meter or a retrofit meter, how will it display if I install the SLD? Can it show 180 km/h over?

1. For SLD type I/II
The stock meter will display as much as it can. For installing a retrofit, please wire with sky blue color wire if there is one, and if not please wire to the white color line.

2. For SLD type III
It will only display from about 170 to 175km/h for SUBARU cars and the retrofit meter type which uses CAN communication signal such as OBD II for vehicle speed display. Also, if you connect the CAC or turbo timer to the speed signal wire of the option coupler or navigation, it will display 180 km/h over (including SUBARU).

The speed wire is connected to the navigation, what can I do?

Please connect SLD between the posiotion where the navigation is wired and ECU.

(For some Honda automobiles) I have installed SLD but meter doesn't work. Also my car doesn't go faster than 165 km/h.

1. If the meter is not working;
   Probably the vehicle speed signal wires of input/output (white/yellow) are set wrong, or power supply or ground wire connection might be the cause of the problem.

2. If the meter stops at 170 to 180 km/h;
   Please check the a wiring diagram for HONDA and setup the SLD sky blue wire. (Check the table below)

SLD TYPE I, II, III wires

Turbo

What is the turbo charger?

If you think it's broken...

Most important thing to do is to check turbo charger before take it off from the engine. Most of the time, there is no problem in the turbo charger and find it difficult to assess the problem after you take off the turbo charger. Its usually much easier to find out the problem if you think the turbo charger have a no problem. Please be careful to check the list 1 to 3 below. You should not think the problem is from the turbo charger at first.

White smoke (Oil leakage)

If the oil doesnt flow back to oil pan and cause a leakage, the white smoke from the muffler will come out.

• The rise of the pressure in the engine(crank case)
  The center housing of the turbo charger is in a negative pressure to prevent from the oil to leak. However the blowby-gas that occurs by the piston ring because of the friction and not proper exhaust of the blowby gas cause the oil leakage from the turbo when its a high pressure in the crank case.
  And also the oil used in the turbo does not flow back smoothly to the oil pan will cause a oil leakage.

Simple Inspection Method
(1) The white smoke will go away if you take off the oil exit, level gauge and blowby hose.
(2) When idling and open the oil-feeding hole and see if the air doesnt go in(you can check with smoke near the hole).
If there is the situation of (1) or (2) it could probably mean the pressure of the crank case of the engine gets too high. If the engine is normal, it will intake to the blowby to the engine by using the negative pressure in the crank case of negative pressure and the pressure in the turbo is also negative pressure, so the oil will not blow out of the turbo.
Conceivable cause

(1) The friction of the piston ring, cylinder and valve guide.
Can intake the blowby gas because of the galling, combustion gas leakage. The vehicles with long distance of driving must be cautious.

(2) Blowby gas or PCV valve clog or defection.
The blowby gas doesnt inhaled properly because of the hose or the head cover of the connection part clogged or the defect of the PCV valve that doesnt boost in the crank case.

(3) Blowby hose is wide open or oil catch tank is defect.
You should be careful not to wide open the blowby hose. It could not flow properly in the oil catch tank of the blowby gas because of the length or curve of the hose.

1. PCV (Positive Crankcase Ventilation) Valve PCV valve inhales blowby gasin an idling and also work as a orifice to control the too much inhale of the blowby gas by engine brake or too high negative pressure of surge tank. Moreover, if the surgr tank get to be the normal pressure by the boost, the crank case pressure lower by flowing by the PCV valve as clack valve and close it to release the gas from main to the crank case.

Confirm the PCV movement
Check the PCV flow the air into the one direction
-Clean with brake cleaner
-Change if it doesnt work after the cleaning

Make sure the the hole is clear for the blowby hose installation partof air cleaner side
The back of the connector of hose is sometimes closed with sludge.
-Confirm the hole with wire
-If its clogged, open with wire of air blow

Make sure the PCV connector is clear
As you can see in the picture left, sometimes the hole is clogged with sludge
-Confirm the hole with wire
-If its clogged, open with wire of air blow

II. Clogging, curving and collapsing of the oil return (drain)
It will have oil leakage because the oil in the turbo that doesnt return to the oil pan. Also the sludge in the exhaust manifold and wastegate will cause the not a smooth oil flow.

III. Excessive oil supply
Make sure to be 0.6 - 1.5m for oil supply line of orifice to control the oil supply. The size of the orifice different from the engine type and turbo type. Set the oil pressure for maximum of under 2.5kgf/cm2 of turbo entrance with the orifice if its ball bearing type.(minimum of more than 0.7kgf/cm2). The oil volume of the dress hose exit is 800cc/min.

IV. Excessive Engine oil supply
This will not have smooth oil flow to the oil pan and will have oil leakage, too. For a sudden stop or inclined driving might cause the high oil level and defective in oil return.

V. The oil will be sucked into the intake side because of the clogged air cleaner.
It doesnt cause as the problem because the tuning car usually uses stick out type air cleaner. But if its blowby gas suction, be careful not to mistake with the oil.

VI. The oil will be sucked out to the exhausting side for the big front pipe & catalyzer-less.
Need to be careful because sometimes the tuning car has a big front pipe and catalyzer-less. Usually, it smells very strong of burning smell of oil with white smoke when the oil leakage occurs in the exhaust part.

VII. The mistake of the oil left over from the past.
Sometimes the oil leakage happen before in the intercooler or muffler could be mistaken for the oil leakage.

Turbo charger structure is sealing the oil by rotating. Therefore when the lower RPM such as idling has higher possibility of oil leakage and also once it started to leak there will be a drain that keep the oil to drift. HKS doesnt recommend for a long idling. If there is no problem from I to VII, it could be the engine problem. Please check the engine. And if there is no problem in the engine, please check the turbo charger.

No power (the boost doesn't go up)

I. Boost pressure loss (turbo charger, intercooler, throttle and intake manifold)
It could be the air leak from the joint hose between the pipes or it open by too much of the stock or other makers boost pressure. There could be leakage from the surge tank or intake manifold.

II. Blocked or crushed part of the intake system
If the air cleaner is blocked or the rubber hose used for suction in front of the turbo charger could cause to crush for the negative pressure by the boost. And also there could be waste between the turbo charger, intercooler and throttle.

III. Throttle valve
It cant have the boost pressure if the throttle valve is fully open in some reason.

IV. Malfunction of the swing valve or wastegate valve.
Boost pressure will not go up if the swing valve of the boost pressure control or wastegate valve is open too much. The seizure of the valve, defect actuator that is to activate the valve and defect in the air pressure control for the actuator. Also check the movement of stock boost control solenoid valve and the area the hose is. And check if there is an orifice or not. Another case, even the actuator or the wastegate is working fine, if the spring is weak, it will not have the boost up because the valve open for exhaust pressure.

V. Blocked exhaust system
If there is block for the Exhaust manifold, turbo charger, extension, front pipe, catalyzer, and muffler the boost pressure will not go up.

VI. The leakage in the exhaust system
If there is gas leakage for the exhaust manifold or turbo installed flange, the boost pressure will not go up. You will probably notice when this happen because of the leaking air sound.

If you dont find any problem of I to VI, it could be the problem of engine. If you find no problem in the engine, please check the turbo charger.

Strange Noise

I Boost pressure loss (turbo charger, intercooler, throttle and intake manifold)
It could be the air leak from the joint hose between the pipes or it open by too much of the stock or other makers boost pressure. There could be leakage from the surge tank or intake manifold.

II Blocked or crushed part of the intake system
If the air cleaner is blocked or the rubber hose used for suction in front of the turbo charger could cause to crush for the negative pressure by the boost. And also there could be waste between the turbo charger, intercooler and throttle.

III Blocked exhaust system
If there is block for the Exhaust manifold, turbo charger, extension, front pipe, catalyzer, and muffler the boost pressure will not go up.

IV The leakage in the exhaust system
If there is gas leakage for the exhaust manifold or turbo installed flange, the boost pressure will not go up. You will probably notice when this happen because of the leaking air sound.You will hear the big blow sound when it starts to open if the wastegate exit is deformed or fully open.

V Strange noise of the pipe

If you dont find any problem of I to V, it could be the problem of engine. If you find no problem in the engine, please check the turbo charger.

Checking the turbo charger

Take out the intake pipe of the turbo charger and turn the rotor with your finger. Be careful not to turn the engine on.

I. If the rotor turns:
Wheel could be broken. The compressor wheel or turbine wheel is deformed or broken. Sometimes you can see it without taking off the turbo charger, but sometimes you cant see it if you take off the housing. If its deformed or damaged, you can hear a weird sound. If you keep this for a long time, wheel and housing will interfere because of unbalance and finally the turbo charger will break down. So if you hear the sound of a weird sound, take the turbo charger and have a check. Also if the bearing is turning in friction, the rotor is not properly moving. For both conditions, you need to take it off and have an inspection.

II. If the rotor is not turning:
The turbo charger rotor is stuck or interfering. The rotor will have lock or malfunction of turning by the seizure the ball bearing. Also the long term oil leakage occurs, it will get carbon because of the heat of the turbine and cause the rotation malfunction by the turbine and the rotor. There a case where the some waste stuck in the turbine and housing or shroud that causes the lock. In this case, you can confirm with your finger and dont have to take off the turbo charger. However turbo charger is broken so take it off and have an inspection.

Taking off the turbo charger for checking

When taking off the turbo charger, be careful to confirm the list below as carefully checking where the problem is.

I. Check the unusual bolts, nuts and hose.
II. Check for contaminant (usually caused for turbo charger damage)
III. Check for Heat discoloration
IV. Check for oil or coolant water for leakage or bad contamination

If you notice above matter, dont disassemble and bring the turbo charger to the shop where you purchased

Cause of the turbo charger failure

Failure in the oil supply (dirt, dust, insufficient oil or breakage of oil film)

If a dirt goes into the turbo charger, it will be a clearance failure and will damage the shaft receiver and bearing surface. Also there is a orifice from 0.6 to 1.5 in the turbo charger oil supply line. In this orifice will have a dirt or sludge stuck into and have the oil film breakage and seizure.

These are the cause of the dirt get into the oil:

Degradation of the oil (sludge)
Degradation, damage or oil filter stuck
Malfunction of the oil filter bypass valve
A dirt mixed in at oil change
Metallic fragment or broken piece at the engine breakage (When engine blow occurs please overhaul the turbo charger)
When using liquid packing or seal tape, part of them could get in the oil line while turbo charger change.
Cause of the oil film breakage:

Degradation of the oil
Insufficient oil
Sudden acceleration when there is not enough oil in the turbo charger
Low oil pressure because of the oil pump defect
clogging of oil strainer
And etc.

Object threw into the wheel

The wheel blade will be damaged if the an object go into the intake or exhaust wheel. And if you keep drive in that condition, the shaft will be broken because of the unbalance rotor which cause bearing seizure.
The cause of the object fly into the intake system

The nut that tighten the impeller thats in the air cleaner or suction pipe will sucked in.
Assembled while some object are still there like washer or waste.
If an object is something hard like a nut or a rock, the blade will be wrecked or cut. Or if the object is soft the blade will be deformed to the back. If its sand or dust, the blade will be wore out.
The cause of the object going into the exhaust side.

The piece of engine parts(plug, piston, ring, etc.)
Things that forgot to clean.
The lock could also happen by something get stuck from the engine to turbine blade and housing or shroud.
If something go into the exhaust side, the engine could be damaged. In this case you need to inspect the engine first.

Exhaust temperature excess

Sometimes while driving or right after you stop a car, the turbo charger can get damaged by the high heat. If you stop a car after driving, the lubricant and coolant oil also stops. This will cause the oil film breakage of the still running shaft and bearing and also the high heat of the turbine housing will transfer to center housing which cause the sludge.(heat soak back) If this sludge increase, the oil passage will get narrow and cause an even higher heat. Later, the sludge will get granular carbon and damage the bearing, seizure of the bearing and breaking the shaft. Its better to have an idling time after a drive. And if you cant have an idling like at a race, making the cooling system for center housing will prevent this problem.
If the temperature of the exhaust is too high while driving, there could be interfere between turbine housing and turbine wheel because of the deformation. Also it could cause a crack of the turbine housing and carbonized of oil. When setting please check the fuel-air ratio and also the exhaust temp.
Causes of the temperature rise:

Unusual A/F
Unusual ignition timing
Exhaust system clogged
Unusual engine management system including the stock ECU

BOLT ON TURBO

11001-KT001 BOLT ON TURBO PRO KIT GTIII-RS 86/BRZ Without CAT

Is this kit compatible with an automatic transmission model?

No, this kit is not compatible with an automatic transmission model due to insufficient transmission durability.
Compared with 205N x m stock torque, the torque increases to approximately 400N x m, which is twice of the stock torque, even at low boost pressure.
The maximum torque is achieved around 4,000rpm; therefore, it is assumed that the automatic transmission may not be durable enough to withstand this torque range.

What is the time required for installation?

Without ECU setting, it may take about 2 days if you install this kit for the first time.
Accumulated time of installation work may be 12 hours including the factory parts modification.

In order to install this kit, the following modifications are required:

Reinforcement cut-off - 2H
Radiator support cut-off - 1H
Hole drilling into the front bumper bracket - 0.5H
Modification of fan shroud - 1H
Installation of the oil return pipe to the oil pan (Hole-drilling, Welding) - 3H

Which type of pressure sensor is required to use with this kit? Is it necessary to replace the airflow sensor? If so, what is the part number?

The airflow value may exceed the upper limit of the stock airflow sensor after this kit is installed.
Therefore, replacing the stock sensor with the one capable of measuring wider range is required.
When we tested this kit, we used FLASH EDITOR and the following parts:
Airflow Sensor: SUBARU 22680AA380 Airflow Meter Assembly Subaru (Stock sensor for GRB)
Pressure Sensor: 3BAR Pressure Sensor

Any exhaust parts that are recommended to upgrade when installing this kit?

When we tested this kit, we used FLASH EDITOR and the following exhaust parts:

Is a oil pan to be developed so modification can be avoided?

HKS is planning to make a oil pan to be used with this kit.

What is the target boost pressure with the stock engine spec?

Maximum target boost pressure is approximately 85kpa.
The boost pressure becomes approximately 80kpa after this kit is installed, 85kpa when controlled by EVC.
Make sure to set up the boost pressure not to exceed output torque over 400N x m (transmissions upper limit).

Is a factory clutch capable of being used with this kit?

It is strongly recommended to replace a factory clutch with a reinforced type clutch.

SUPER RACING OIL

For NA engine, is there any advantage of using the oil effective against LSPI?

LSPI usually does not occur on the NA engine; however, since the new standard of oil clears old standards, theres no need for concern of using new oils. Even if the oils is designed to be effective against LSPI, other performance is not sacrificed, and the overall spec is improved by the latest formulation.
Super NA Racing is also available for the downsized turbocharged engines which engine oils is designated to be 0W-20 or 0W-30.

Why is the additive effective against LSPI not contained to Super Rotary Racing?

The rotary engine usually requires low ash property; therefore, the additive components level is usually low. As the compression ratio and boost pressure of the rotary engine are not so high, the proven conventional prescription was selected.

What is the advantage of the 100% synthetic base oil?

100% synthetic base oil can improve the fundamental strength of the oil. A strong oil film can be maintained without an additives that deteriorate by exposure to high temperature and high load conditions.
The additives work like an energy drink; the performance is temporarily improved, but the performance declines with the lapse of time. Therefore, the base oil’s fundamental strength is important to maintain the performance.

Why 10W-40 was selected for Super Boxer Racing?

Due to the short stroke, big bore, and aluminum block, the piston side knocking sound sometimes occurs when the engine is cold. Since the noise tends to increase if the viscosity is too soft, moderate viscosity was selected.

For RB, the viscosity of the former engine oil was 15W-55. Why is the viscosity of the new one softer?

The viscosity description was changed according to the standard for viscosity description.
There is a certain range in the viscosity index classified as 15W-50, and SUPER TURBO RACING 15W50 is designed to be thicker among the range.

Is there any disadvantage of new viscosity of new oils?

HKS oils are a multi-grade oils that is soft at a low temperature, and thick at high temperature.
Fuel consumption, startability, and oil film strength are implemented together at a high level.

SUPER OIL Premium

Is it applicable for the vehicle with DPF?

It has passed JASO DL-1 standard in HKS in-house test, but HKS never did the test of foreign diesel standard. Therefore, it is not applicable for the vehicle which is adopting the latest emission standards such as EURO6 or others.

What is DPF(Diesel particulate filter)?

DPF capture and remove the PM (Particulate Matter) produced by diesel engine.

What is the deterioration of DPF?

PM (Particulate Matter) will be produced as the byproduct of oil and fuel consumption and remain in the DPF. Therefore, filters require regeneration as a regular maintenance to remove soot. Normally, regeneration process is automatically happened while driving, but soot will increase faster and lead to an early deterioration of DPF in the following driving situations.

-Low speed continuous driving
-Short time driving before the engine warm-up
-Long time idling of engine

Moreover, deterioration will happen by the bad fuel quality, engine condition and maintenance condition. Please follow the vehicle instruction manual for maintenance.

DDR

Is DDR available for a diesel engine?

There are 2 types of DDR; one for a gasoline engine and another for a diesel engine.

Is it OK to add when only a little amount of fuel is remained in the tank?

For sufficient cleaning effects, add DDR when the fuel tank is full.

Is DDR available for a carburetor engine or direct injection engine?

Yes. DDR improves the performance for all types of gasoline engines.

How often DDR should be added?

The recommended usage frequency is 5,000 km or every 6 months.

How much does the fuel efficiency improve?

The in-house test shows approximately 10% improvement; however, the actual result may vary depending on the driving conditions and/or vehicle models.

Is DDR effective for the exhaust gas cleaning?

Removing the deposit improves the combustion condition; however, exhaust gas condition may remain the same as a brand new condition.

Is any automobile manufacturer offering a similar product?

Major automobile manufacturers already offer the similar products.

How long does DDR remain effective?

It is effective while DDR is mixed with gasoline. Also, while DDR ingredients is absorbed to the metal surface, it prevents the deposit from building up. However, the engine dirt is built up eventually; it is recommend to use DDR regularly.

How effective if DDR is used for a new vehicle?

Since a new engine is clean, it may not show noticeable cleaning effects. However, periodical use of DDR can prevent the deposit from building up to maintain the engine performance.

How effective if DDR is used for an old vehicle?

It is very effective, but if a considerable amount of deposit has already been built up, adding one bottle of DDR may not remove all deposit. Also, excessive amount of the deposit melted by DDR may be supplied to the combustion chamber that may worsen the engine performance; however, continuous use of DDR remove the deposit and improve the engine performance.

Is it OK to mix with other brands' gasoline additives?

No. Do not mix DDR with other gasoline additives. It wont create a multiple effect at all, and in the worst case, the chemical reaction may be generated resulting in engine internals damage.

DDR Premium

Can I use this product when low on fuel?

Yes, you can. However, to improve the cleaning effect HKS recommend using it with a full fuel tank.

Can be used for carburetor cars or direct injection engines?

It provides excellent clean effects for all types of the gasoline engines.

How often should I use this product?

HKS recommend to use it every 5,000km or 6 months whichever comes first.

Does this New DDR Premium clean exhaust gas?

It is expected to clean the exhaust gas due to removing various deposits on engine internals. However, this improvement does not promise the cleanness equal to the new condition of a car.

How long is the duration of the product effect?

The effect continues while gasoline contains DDR. DDR provides protection from contamination while it is on a metal surface, however the engine gets dirty gradually. HKS recommend using DDR regularly.

Will DDR work with a new car?

It might be difficult to feel the exact effects when the car is new however regular use will help to prevent the deposits providing turn solid.

Will DDR work with an old car?

It will be very effective but just onetime use may be not enough to remove many adhered solid deposits. If you use it with engine which is extremely dirty, it may give you the feeling that the engine condition becomes worse when too many melted deposits flow into the combustion chamber. For this measure, HKS recommend using this product regularly.

Is it OK to mix with other product?

Do not mix DDR with other products. It will not improve cleaning effect, and it may lead serious damage to the engine due to chemical reactions.

HYBRID SPORTS OIL FILTER

Is the size of a center bolt able to distinguish just by looking at the oil filter itself?

Yes.