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AIC
(Auxilliary Injector) Systems
Stock Fuel Injection System Upgrade Components:
The stock 2 injector throttle body injection is poorly
designed but it is what you have to work with unless you want to jump in and
go to a complete new F.I. system. We have been successful in working with the
stock system in applications up to about 320 hp although the driveability is
not all it could be. The stock system is notoriously unreliable and difficult
to troubleshoot and even more expensive to repair. DO NOT attempt any upgrades
to your car if the injection system is not working properly. You will lean out
or detonate and cause yourself much more expensive problems. Make
the car run good before you try to make it go fast.
The first problem most people encounter when working
on or troubleshooting their F.I. system is establishing fuel pressure and volume.
It seems no one has the tools and most repair shops don’t want to deal with
these cars. You need to know if the car is rich or lean before you can figure
out what to do to fix or upgrade it. To this end we offer a couple of good diagnostic
and tuning tools. You also need to establish fuel volume, this will tell you
if the fuel pump, pickup or fuel filter are restricting the amount of fuel to
your engine. You need at least 25 gallons per hour @ 45 psi to run under boost.
This is easily measured by taking a container of known size ( like a 1 gallon
plastic bottle ) and running the fuel into it for 1 minute and multiplying by
60 for a 1 hour flow rate. A 90-150 GPH rating is even better, this is the reason
for upgraded pumps. Fuel pressure plays a big part in tuning the system. If
you cannot change the length of time the injector opens ( as with the stock
system ) then raising the fuel pressure will let more fuel in during that time
with the added advantage of a better spray pattern and better atomization. Rising
rate boost referenced regulators are the best way to accomplish this since the
stock regulator does a fine job of running the car at low speeds and off boost.
We use an additional rising rate regulator inline with the stock regulator to
increase pressure in a linear fashion from 5 psi boost to 18 psi. The amount
of pressure varies with the output of your pump or pumps. Replacement BOSCH
High volume and High pressure fuel pumps are a great safety item and will assure
you of having enough fuel available at all times. A must if you are going to
run a Nitrous system and the only way to go to replace a bad stock pump.
This is the very best way to diagnose and trouble shoot your
fuel system and to monitor your system for possible lean conditions under
higher than stock boost levels. A must for tuning any programmable management
system.
http://www.racetep.com/halmeter.html
Bosch Replacement 350 HP fuel pump.
$189.00
A stand alone replacement for the stock pump. Good
for systems up to 350 HP. A direct replacement for the stock pump.
Bosch Racing 500 HP Fuel pump.
$299.00
A stand alone replacement pump for systems up to 500
HP or any 4 injector or AIC system. This is the pump that comes with our 4 injector
conversions and AIC kits.
AIC (Auxilliary Injector) System
This is the system we use
for the 1986 Cars when we get past the Boost Cut limit to give the extra fuel
needed...Also works excellent on the 87-89 cars when running a large Turbo and
15+ psi boost. Note: This package adds 2 extra injectors into the existing system.
It does not replace the stock F.I. in any way.
Rising Rate Inline fuel pressure regulator.
$229.00
Same baseline as the stock regulator so it will no
affect your off boost and low boost driveability. An easy to install
unit that does exactly what the bigger fancier regulators do at about ½ the
price. Also makes a great stand alone regulator if you want to eliminate the
stock one or are going to a stand alone management system.
Bosch mechanical adjustable regulator.
$69.00
A handy inline mechanical regulator that will enable
you to raise your baseline fuel pressure incrementally to the limit of the pumps
output. An easy way to cure off boost lean spots. Can be used with any rising
rate regulator.
Fuel Injectors
87-89 Primary
$Call for Current Price...Supplied with new Injector Connector
87-89 Secondary
85-86
$Call for Current Price...Supplied with new Injector Connector
Stock Factory replacement fuel injectors. They come
with new seals and new injector connectors.
Clean and
flow stock injectors ( per pair, all years ) $85.00
Cheaper than buying new ones and usually successful. Will not fix cracked or
broken plastic around the connector..If yours are cracked or broken it is junk...This
is NOT a new set of injectors. This is to CLEAN and FLOW YOUR injectors
only....If both injectors are bad there is still a $20.00 service fee for the
setup and time to check them...If 1 injector of the pair is bad the charge is
$45.00....
Fuel
Injector replacement connectors $25
pair. Sold
in Pairs only
These
little connectors are the source of so many problems in a StarQuest it should
be the very first thing you replace when you buy one or are having any driveability
problems. This is the plastic connector with the electrical terminals and a
6” pigtail of wire. Ours are the quick release style so you do not need to pick
the little “U” clips to remove them. Just push and release. Solder new wires
onto your harness and off you go. Be sure and THOROUGHLY CLEAN your injector
terminals with a small file or piece of sandpaper to insure good contact.
K&N Air filter for stock air box
$55.00
This is the best way to do this. K&N element in
the stock air box. Drill a bunch or ¾” to 1” holes in the airbox or cut one
large panel out on the side away from the turbo and the face. Keeps intake noise
down and admits quite a bit more air. Cheap, Easy , and the filter is washable..Leave
the cold air inlet from the fender in place !!!!!
Fuel Injector Seal kit
$45.00
Throttle body Seal kit (Includes Injector seal kit
and throttle body base gasket. )
$89.00
Throttle Position sensor $Call for Current Price...
Inlet boot from Turbo to Mass Air Sensor $139.00
Due to price fluctuations please call or e-mail us for current prices on the following itms
$Call for Current Price...
Coolant temp sensor for F.I.
Knock Sensor
Stock Fuel Pressure regulator
Knock sensor on side of block by oil filter housing
Coolant temp sensor for computer
Low temp fan switch on radiator
Idle speed control motor
Fuel Pressure Regulator
Vacuum advance on distributor
Pressure sensor on firewall
Knock Box on left inner fender
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