In most cases the factory wiring is sufficient to power the DW300-series fuel pump. We do suggest hardwiring any high flow fuel pump when one or more of the following conditions exist.
1. Your base fuel pressure plus peak boost pressure exceeds 80psi.
2. Your chassis wiring is more than 10 years old.
3. You are experiencing a drop in fuel pressure at high load.
The DW300-series pump is designed to operate at up to 100psi.
Yes, the DW300-series fuel pump has been approved for up to 18 volts. Running higher voltage can decrease the life of you’re your pump but does not effect your 3-year warranty.
DeatschWerks universal kit will work with a wide variety of applications, especially for cars manufactured before 2002. We may be able to provide additional information on your specific car if you contact our tech department.
Yes, for fuel pumps, increasing fuel pressure will DECREASE the flow rate of the fuel pump. A tech sheet showing pressure vs flow of the DW300-series pump accompanies each pump.
Yes, the DW300-series pump was designed and tested with e85 in mind.
1. Make sure all electrical connections are properly secured (do you hear the pump turn on?).
2. Make sure you have sufficient level of gas in your tank.
3. Evacuate any trapped air by priming the pump after installation.
4. Contact DW technical support.
1. Make sure the outlet of the pump is properly sealed in the fuel pump assembly.
2. Make sure your pump is receiving proper voltage under full load.
3. Make sure sock (pre-filter) is in the proper location near the bottom of the tank.
4. Contact DW technical support.