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Racetronix
97-03 Corvette C5 Racetronix Fuel Pump and Wiring harness
[FPWH-007]
$69.99
Part Number: FPWH-007
 
Manufacturer: Racetronix
 
Description:
C5102.jpg - 97-03 Corvette C5 Racetronix Fuel Pump and Wiring harness
Click to enlarge

Plug & Play (no cutting or splicing required)


Weatherproof factory connectors
Heavy 10 gauge automotive-grade copper wire
Heavy-duty 40 amp weatherproof relay
Weatherproof fuse holder
Alternator-direct power for maximum pump performance
Silicon grease, spare fuse, wire ties included
Stainless steel mounting hardware
Compatible with various pump boosters (i.e. KB, MSD) (optional)
Key-off fuel pump power jumper and drainage kit (optional)

Why use a Racetronix Fuel Pump Upgrade Harness?

Alternator-direct power for maximum voltage / True PnP with GM type connectors: The Racetronix PnP upgrade harness provides alternator direct power for maximum pump voltage. Racetronix has documented an average 1.2-1.5V increase in pump voltage in the C5 which equates to a 15-18% increase in pump volume based on Walbro's specifications and Racetronix field tests. A minor increase in fuel pressure will actually be experienced with the installation of this harness. The harness is fully 'plug and play' and is installed without cutting into factory wiring. The entire harness is weatherproof made with the same Delphi interconnect components used throughout your C5. The harness' operation is quite simple. The factory power wire which was once used to power the fuel pump is used to trigger a 40 amp-rated relay which in turn supplies power directly from the alternator with fused protection.

Redundant grounds = improved voltage & reliability:

A redundant ground is provided which loops into the harness. This loop enhances ground to the factory harness making a two-fold improvement. A secondary ground for the fuel module is also provided. This enhances the ground at the pump's source and through the fuel module's body. (see above)

Pump-booster PnP ready:

The Racetronix harness is equipped with an intermediate high-current (30 amp) connector just after the relay. This allows for easy plug & play addition of a pump voltage booster which can increase pump performance upwards of 30%. A spare connector assembly set is included so that any booster can be adapted to plug into the Racetronix harness. The Racetronix harness further enhances pump booster performance by eliminating voltage drop. The heavy 10 gauge power feed is more than capable of handling the 15-20 amp loads generated by the pump at boosted voltages.

Fuel Pump Drain & Power System (optional C5-FDK)

A special wiring harness is included with this system which allows the in-tank pump to be powered up without the vehicle running. This can be used to help drain much of the fuel from the tank before undergoing replacement of the factory pump or to drain race fuel from the tank at the track. Simply install the Racetronix upgrade harness, unplug the intermediate pump booster connector and plug this drain harness in. Attach the alligator clip to the back of the alternator + or battery + to supply power. The harness is fused for your safety and is assembled with fuel resistant wire. A length of clear vinyl hose with gear clamp is included which is attached to the fuel module's 'black' outlet port to aid in draining the tank.

Hardware included:

There is nothing worse than being in the middle of an installation only to find that the manufacturer has skimped on installation hardware. This is why Racetronix supplies a spare ATC fuse, 25 black nylon wire ties, silicon grease and stainless 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. All Racetronix harnesses are assembled using our computerized crimp-quality monitoring system and then circuit checked for the utmost in reliability. This Racetronix harness is backed by our limited lifetime warranty.

Technical note:

The Racetronix fuel pump in this system is capable of supporting apx. 600RWHP @ 0.5 BSFC @ 58PSI (400KPa) using factory lines. In early model C5's with rail-mounted fuel pressure regulators the above HP support can be achieved. Addition of a pump voltage booster may increase support to apx. 700RWHP. Cars with superchargers, turbos and low battery voltage may see lower HP support numbers.

Late model C5's with the returnless rail system will not be able to achieve this level of HP support with the fuel system alone. This is because the point of regulation is at the back of the car. The location of the FPR does not allow it compensate for line pressure drop even though the pressure is stable at the back (regulator location). There are two options to get around this problem. First is to convert the system to a rail mounted FRP return type (best). The second option is to install a pump booster which is activated at the point where rail pressure starts to drop. The boost in fuel volume overwhelms the regulator / return line thereby increasing the fuel pressure at the back of the car which translates to higher pressure at the rail. We recommend the MSD unit for FI applications as it ramps the voltage based on manifold pressure. This prevents a short but abrupt fuel pressure spike which causes the motor to hiccup from brief over-fueling. If you are using an instant-on N2O system then the KB BAP can be considered as well.

Please understand that this is not an issue with the Racetronix system but rather a design limitation of the factory configuration.

2003 C5 Corvettes can be checked for compatibility with the Racetronix fuel system. If your access port for the fuel module can be seen in front of the driver's side rear tire (under the car) then this system will work. If it is not visible then you have the new type of module which goes in from the top of the tank. The Racetronix system is not compatible with this fuel module / system. If you are not sure please have a qualified person check before ordering your system.

This product was added to our catalog on Thursday 10 July, 2014.
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