F7 Fuel Pump Kit (RXP255E)
RFPK-011 - 1989 Turbo Trans AM Fuel Pump Kit (RXP255)*
RFPK-011 Fuel Pump Kit
Racetronix Fuel Pump Assembly
The Racetronix FPA-012 high-performance fuel pump assembly is capable of supporting approximately 550RWHP* @ 13.5V @ 43.5PSI using the factory lines and fuel pressure regulator when installed in combination with our FPWH-012 upgrade harness included in this kit. HP support will vary based on motor B.S.F.C., maximum fuel pressure, target A/F and supply voltage. Please factor in a 20% safety margin between what your motor needs and what your fuel system can supply.
* This kit was engineered for use with the factory Delphi hanger 25027221 / FL0115. We cannot guarantee compatibility with aftermarket hangers. Please submit your VIN number via our contact us form if you are not 100% sure of your application. No returns on open-box pumps.
Racetronix Fuel Pump Upgrade Harness
The Wiring Harness
All fuel pumps are voltage sensitive, the lower the voltage the lower the fuel volume. High-performance pumps exhibit a significant increase in fuel volume with increased supply voltage. A high-performance pump's average fuel volume increases over 18% by increasing the supply voltage from 12 to 13.5 volts. The factory harness is marginal at best for supplying a factory pump with enough voltage to perform well. This is why the 'hot wire' modification is so popular. Replacing the factory pump with a high-performance pump can easily double the current demand under W.O.T. pressures. The voltage drop in the factory harness increases proportionally to the current demands of the pump. Racetronix has documented tests where the voltage drop in a factory harness has caused over a 25% drop in fuel pump volume. The Racetronix harness uses heavy 10 gauge copper wire to reduce voltage-drop to very low levels. The factory gauge of wire used is three gauges thinner. Our power feed comes off the back of the alternator where voltage is highest. It then runs through a weatherproof fuse holder and then to the back of the car. The Racetronix harness uses three-position male and female Weatherpack connectors which plug inline with the factory harness at the back of the tank. No cutting or splicing is required. High-quality weatherproof fuse holders and relays are used for maximum reliability. The Racetronix harness has a redundant ground upgrade as it is necessary to improve the harness on the negative side of the pump's supply as well. Racetronix supplies a spare ATM fuse, black vinyl wire ties, silicon grease and mounting hardware with each kit.
Racetronix harnesses are
considered the best by which all others are judged. Attention to detail
in every Racetronix harness is evident at first glance. Racetronix spares
no expense to ensure reliability, ease of installation and performance.