F7 1989 Turbo Trans-AM Fuel Pump Wiring Harness*
$79.99
per EACH FPWH-012 - 1989 Turbo Trans AM
APPLICATIONS:
- 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
- Body ground upgrade with battery nuts (optional)
- Compatible with various pump boosters (i.e. KB, MSD) (optional)
Why use a Racetronix Fuel Pump Upgrade Harness?
The Wiring Harness
All fuel pumps are voltage sensitive, the lower the voltage the
lower the fuel volume. Gerotor pumps exhibit a significant increase in
fuel volume with increased supply voltage. A Walbro 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
such as the Walbro GSS340M 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. We
are including as a bonus our optional battery to body ground upgrade kit.
This kit upgrades the under-rated ground wire running from the battery
to the inner side of the passenger's quarter panel.
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.
UPGRADE OPTIONS
BGK
An optional battery to body
ground upgrade kit is available (P/N BGK8). This kit upgrades the under-rated
factory ground wire running from the battery to the chassis. It includes
an 8 gauge copper wire fitted with terminals and battery nuts with accessory
taps. We highly recommend this inexpensive option because this is a weak
point in these cars.
PBIC
The Racetronix harness comes
equipped with an interface connector just after the relay (see
product picture above). This connector in combination with an optionally
supplied connector set (P/N PBIC) allows for easy plug and play addition
of a pump booster / voltage amplifier such as the MSD or KB units. These voltage amplifiers / boosters will allow the Racetronix single in-tank pump system to support an additional 100-200 flywheel HP (B.S.F.C. dependant) when run at 16-17 volts. This configuration
offloads the excessive current draw placed on the factory wiring onto the
heavy gauge Racetronix harness system. System diagnosis becomes easier
by simply being able to unplug, isolate and bypass sections of the wiring
system