Replacing the factory pump with a high-performance pump can easily double the current demand under W.O.T. This is why the 'hot wire' modification is so popular. The factory harness is marginal at best for supplying a factory pump with enough voltage to perform well. A pump's average fuel volume increases over 18% by increasing the supply voltage from 12 to 13.5 volts. High-performance pumps exhibit a significant increase in fuel volume with increased supply voltage. KB, MSD) (optional)Īll fuel pumps are voltage sensitive, the lower the voltage the lower the fuel volume. Compatible with various pump boosters (i.e.
Body ground upgrade with battery nuts (optional).Silicon grease, spare fuse, wire ties included.Alternator-direct power for maximum pump performance.Heavy 10 gauge automotive-grade copper wire.P lug & Play (no cutting or splicing required).Filter Sock - 30 micron filtering better than factory.Racetronix RXP255 255LPH turbine fuel pump with reduced noise and enhanced reliability with ethanol- enhanced fuels*.Please contact your local Racetronix dealer to discuss your fuel requirements. Please factor in a 20-25% safety margin between what your motor needs and what your fuel system can supply. HP support may vary for N/A or F/I motors.
The RFPK-005 is recommended for factory HP upgrades to 600FWHP 43.5PSI using the factory lines and fuel pressure regulator. The only reason for splitting these as was done was to distribute the electrical load so as to not overload one circuit.Fuel Pump Kit, Racetronix L98/TPI F-body Fuel Pump & Wiring Harness Kit, Fits L98/TPI F-Body w/ electric fans, serpentine belt & alternator on driver's side. The Reason for this mis-information is that the injectors run on two separate circuits. Some would say these systems fire 1/2 at a time (odd bank, then even bank, etc, four injectors at a time).
There does appear to be some mis-information out there concening this. I found several other sources which corroborate this. So the answer appears to be that the TPI injection system is indeed a batch fire system which fires all eight injectors at the same time. But on production engines, the benefits are more in the area of emissions and driveability than in performance". Generally, sequential injection offers more precise fuel control at the price of increased complexity. Later, sequential EFI systems were refined to fire an injector a few degrees before the intake valve opened. This way, the injectors could be sized small enough to be more easily controlled at idle. Usually batch-fire systems fire the injectors once per engine revolution. "Most early EFI systems were batch-fire systems where the ECM fired all eight injectors simultaneously. According to this Corvette web site which pulled this from GM Performance:
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