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G7 Fuel Pump Kit, Type G77 86-87 RXP255E
RFPK-006-G77 - Turbo Buick Fuel Pump Kit G77 1986 1/2-1987*
Racetronix Fuel Pump Kit
The RFPK-006 is recommended for factory HP upgrades to 600FWHP @ 43.5PSI using the factory lines and fuel pressure regulator. HP support may vary for N/A or F/I motors. Please factor in a 20-25% safety margin between what your motor needs and what your fuel system can supply.
* This kit was engineered for use with the factory Delphi G77-type hanger noted below. We cannot guarantee compatibility with aftermarket hangers.
Racetronix Fuel Pump Assembly
Racetronix Fuel Pump Upgrade Harness
The Wiring Harness aka 'Hotwire harness'
No cutting, splicing, crimping or soldering. Retain factory configuration. Just plug it in and you are done!
High performance fuel pumps need a good power source in order to perform to their full potential. On average a high-performance fuel pump requires twice as much power as a factory fuel pump. Factory wiring is just enough for a factory pumps power requirements because manufacturers need to save cost and weight. Racetronix field tests have shown that running a high-performance fuel pump off of the factory wiring can cut pump performance by 30% or more. Problems with failing factory relays, connectors/terminals and fuse contacts are also common when excessive load is placed on them.
The Racetronix plug and play harness is designed to remove all fuel pump load from the factory pump circuits while providing the pump with a new heavy-duty power source. The Racetronix harness gets its power directly from the alternator's battery terminal. The voltage at the alternators output is typically 1-2 volts higher than at the battery when the motor is running (high charge/load conditions and WOT). This means that your high-performance pump can provide as much as 20% more fuel in some cases. The Racetronix harness uses high-quality automotive-grade wire which is resistant to oil, gas, heat and rot. The main length of wire in the Racetronix harness is ten-gauge stranded copper. This is three to four gauges thicker than factory wire which helps reduce resistive power loss to almost non-existent levels. This helps improve pump performance by as much as another 10-20%. (Competitive harnesses typically use wire which is one gauge thinner than ours). High-quality weatherproof fuse holders and relays are used for maximum reliability. The Racetronix harness has factory-type weatherproof connectors which plug directly into your fuel pump module/sender so no cutting or splicing is required.
Harnesses made by other companies do not have this unique feature but rather they require you to drill / tap holes in your car to attach a separate ground strap and mount your relay.To make matters worse they loop the factory ground in and out of the power feed connector to save the expense of running a dedicated wire. Running two wires into one seal does not allow it to seal properly so moisture could get in and corrode both the factory sender connector and upgrade harness.
The Racetronix harness is covered with Nylon loom (GM spec. GMP.PA6.003, -40ºF to 300ºF). Nylon loom is more flexible, slicker, shinier and has a higher temperature rating than the PE loom used by other vendors. Nylon loom provides superior protection and eases installation especially in colder climates.
Racetronix supplies a spare 20A ATM fuse, 25 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.