These are the frequently asked questions about HKS products. Please refer to the following pages for information.
The minimum ground clearance is the distance between the lowest part of the vehicle (such as a CAT, muffler shell, mid pipe, etc., but not accessories such as aero parts and mudguard) and ground surface. It is measured without any passenger in a vehicle. The allowable minimum ground clearance of the safety standard is 9cm, and all of HKS muffler series retain this 9cm clearance.*The ground clearance is usually measured with the standard vehicle height. The vehicle height is lowered than the standard, the allowable minimum ground clearance may not be obtained.
HKS MUFFLERS passed noise regulation without using inner silencer.
Close noise of exhaust is measured in a certain condition of an engine at a certain RPM.
Set the muffler as shown here
For example, the max power of Lancer Evolution X is reached at 6,500rpm, so set the engine rpm to 4,875 which is the 75% of 6,500rpm.
Adjust the engine rpm to 4,875rpm, and start to measure the sound. After 5 seconds, take the foot off the accelerator, and finish measuring the sound when the engine rpm declined to idling.
Stock mufflers are made not to have any problem and to have the efficient exhaust capability. HKS mufflers and pipe layout are designed to support the best performance of a car. Also, the shell part of the stock vehicle is made to decrease the sound of exhaust gas, but HKS shell is designed for a cool and sporty sound.
The muffler passes hot air; so over the years, due to the secular change in the long-termuse, the muffler sound may become bigger. Muffler is a consumable product. Thats why HKS is using the advantex glass wool for the best and long lasting mufflers
Thats called a "SILENT CHAMBER".
A stock car, mini van or wagon, tends to have a muffled sound when you change the muffler, and the silent chamber make this muffled sound go away.
As you can see below, this silent chamber can change the frequency and reduce the bad sound from the muffler. HKS tested and analyzed each vehicles sound and make the best silencer. However, by putting this chamber does not effect on the exhaust pressure and appearance of a car.
The HKS SUPER SOUND MASTER MUFFLER is perfect for you. It creates a cool high pitch sound and has a quiet sound at a low pressure.
Yes. HKS SUPER TURBO MUFFLER has a low pressure and lower noise muffler.
The sport muffler that is made fully of titanium (one of the lightest muffler in the market) and ultimate straight design muffler HI-POWER SPEC R, HKS top level muffler developed to attack in the circuit, is perfect for you.
The SILENT HI-POWER as the name indicates, it is the muffler with quiet sound and still has performance power in a good balance.
ES PREMIUM is a cannon ball type design muffler, and LEGAMAX PREMIUM is the clean and stylish tip design muffler that are very cool and beautiful looking. Its a perfect for city drive by a normal vehicle.
"2 Stage Exhaust System" is recommended. Usually, as the tuning level is advanced, implementing "silence" and "high power" together may be difficult. But, the switchable valve equipped with this exhaust system controls the exhaust path depending on the engine RPM so the exhaust system can withstand high power maintaining silence at low speed.
"Hi-Power SPEC-L" is recommended. Pipe plate is 0.8mm thick, and silencer outer plate is only 0.5mm of SUS304 material. This super lightweight exhaust system is comparable to a full titanium made. Also, it has an efficient exhausting ability and cool sound. Only HKS can make this kind of high engineering exhausting parts.
*Subaru WRX Sti: The weight of this SPEC-L is only 10.5kg which is -53% of the 22.4kg stock exhaust system. The lightweight exhaust system has many advantages such as better exhaust efficiency, acceleration/deceleration performance improvement, reduction in a brake load, more accurate turning traceability by reduced inertial weight reduction, etc. Replacing the exhaust system with this product changes the driving drastically.
LEGAMAX PREMIUM is what you need. It fits great for a van with the aero and aluminum wheels. And, of course, it has passed Safety Standards regulation for a sound level.
HKS has develpoed a new cool and stylish design of muffler ES PREMIUM or ES WAGON for users who are looking for the sportiness in their mufflers.
HKS have exactly what you want! The LEGAL MUFFLER is what you are looking for. Its tip is designed for each vehicle, and it has a good feature for a low price.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
The spring rate change for the straight spring and barrel spring is available. Please see the table below for the rates available to change.
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.
Yes, there is.
About 6 months to 12 months or 6000km to 10,000km distance.
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.
Make sure if the red and green LEDs on the unit turn on or blink.
Yes, you can make call or send and receive email.
Yes, you can.
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
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.
Android 6.0/iOS 9.0 or later is applicable
Yes, you can.
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.
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.
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.
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.
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".
Carscope has the demonstration mode. Try the demonstration with your smart phone or tablet PC.
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.
Yes, you can with Carscope Ver. 1.10 (2012/09/25). You can export to a CSV file.
Digital terrestrial broadcasting on TV and 1-Seg digital TV can be watched even the DMR unit is installed 10cm from the TV antenna.
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.
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.
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).)
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.
Yes, if the provided external output AV cable is used.
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.
No, only one second camera can be installed to one main unit.
No, the second camera was designed for indoor use. The camera is not waterproof and dustproof.
Images from the second camera can be output as well. Images to watch can be selected by switching a main unit switch.
Yes, both cameras synchronously work on the same time base.
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).
No, it is currently not available for Mac.
No, it is not possible.
No, it is not possible.
"Google Map" displays from the point a GPS signal is received again.
No. Comparing the past driving lines with the current one is not available.
The unit may not be able to receive a GPS signal properly since it is designed to install on a windshield in correct orientation.
At the present moment, DMR-200D cannot be connected with other products.
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.
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.)
Connect the throttle signal harness (brown) and vehicle speed or engine RPM signal harness (green) with the vehicle side signal harnesses
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.
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.
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 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.
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.
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.
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.
Yes, if the car has 12V actuator or wastegate and turbo with boost pressure control.
No, they are not available for sale.
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.
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.
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.
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.
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.
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.
If there is a specification change for the vehicle, please check the normal boost and reset the boost in each mode.
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.
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.
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 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 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.
The "Data Lock" function may be on. Turn off the data lock.
Check the exhaust bypass selection switch is matched with vehicle type. Also, check the short-circuit, wire disconnection, miss-wiring, etc.
-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.
Check the wiring position and all-open or all-close throttle setting.
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.
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.
With Easywriter, simple and precise data editing is possible by the MAP function. Also, the logger function is available during the boost setting.
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.
Some Nissan Automatic cars need key lock release adapter which prevents from key gets stuck when turbo timer is in use.
Please check if the gray colored timer wire (parking brake wire) is properly wired.
Basically, you need a timer harness for your vehicle, and these color of wires are;
It depends on the vehicles.
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.
If the stock tachometer and Turbo Timers display are too different, "learning" is required.
Check the 3rd digit of the serial number.
It depends on the vehicle.
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.
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.
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.
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
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
Make sure if the harness couplers are tightly inserted. Improper installation may cause malfunctions
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.
It’s about switch in the SLD. SLD has to set the right switch for the your automobiles.
If you set the switch after IG-ON, the setting might not be executed. Please make it IG-OFF and try again.
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.
For some cars, ECU is in the engine compartment. Please check the manual and do the wiring to the ECU.
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.
Yes you can. Please follow the traffic rule and drive safely on the road.
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).
Please connect SLD between the posiotion where the navigation is wired and ECU.
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.
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)
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.
If the oil doesnt flow back to oil pan and cause a leakage, the white smoke from the muffler will come out.
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.
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.
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.
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.
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.
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
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.
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.
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
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.
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
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
When we tested this kit, we used FLASH EDITOR and the following exhaust parts:
HKS is planning to make a oil pan to be used with this kit.
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).
It is strongly recommended to replace a factory clutch with a reinforced type clutch.
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.
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.
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.
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.
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.
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.
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.
DPF capture and remove the PM (Particulate Matter) produced by diesel engine.
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.
There are 2 types of DDR; one for a gasoline engine and another for a diesel engine.
For sufficient cleaning effects, add DDR when the fuel tank is full.
Yes. DDR improves the performance for all types of gasoline engines.
The recommended usage frequency is 5,000 km or every 6 months.
The in-house test shows approximately 10% improvement; however, the actual result may vary depending on the driving conditions and/or vehicle models.
Removing the deposit improves the combustion condition; however, exhaust gas condition may remain the same as a brand new condition.
Major automobile manufacturers already offer the similar products.
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.
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.
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.
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.
Yes, you can. However, to improve the cleaning effect HKS recommend using it with a full fuel tank.
It provides excellent clean effects for all types of the gasoline engines.
HKS recommend to use it every 5,000km or 6 months whichever comes first.
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.
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.
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.
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.
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.
Yes.