|The RXP255J turbine pump is a direct-fit replacement for the factory Walbro jet-pump. Direct-fit means no modification to the fuel module is required therefore the full functionality of the fill bucket is maintained. The fill-bucket allows the fuel pump to use its jet + venturi function to keep the pump immersed in fuel at all times regardless of the tank fuel level. This aids in preventing fuel starvation under hard cornering and acceleration. Keeping the pump immersed in fuel also helps prevent moisture damage which can shorten the pump's life. The RXP255J pump has the same flow as other Walbro 255LPH pumps but since this pump is run at a base pressure of 58PSI (vs. 43.5PSI) its flow rating drops to a nominal 225LPH @ 13.5V. There are no Walbro pumps which are spec'd at 255LPH @ 58PSI @ 13.5V. This has been a constant source of confusion on car forums due to misinformation being posted. This pump assembly in combination with our upgrade harness FPWH-007 will support apx. 550-600RWHP using the factory regulator and fuel lines. This HP number may be less with forced induction applications which require richer air/fuel mixtures and higher fuel pressure. Please see tech note below! Please factor in a 20-25% safety margin between what your motor needs and what your fuel system can supply.
1997-2003 C5 Corvette (Will work for 2003 Corvette's built before October 2002)