Quick Fuel Technology Qfi Electronic Fuel Injection System - Manual

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QUICK FUEL TECHNOLOGY® Qfi™ Electronic Fuel Injection System
Installation and Instruction Manual
INTRODUCTION
Your new Quick Fuel Technology® Qfi™ electronic fuel injection system is one of the industry’s most
advanced and flexible EFI packages available. It is designed for V6 and V8 street engines up to 500
cubic
inches, and delivering from 250 to 525 horsepower.
Quick Fuel Technology’s Qfi system allows you to use both the handheld controller and a PC laptop to
tune the system. The handheld controller is designed to set up the system and to provide the ability to
make the majority of tuning changes to suit your engine. The DASHBOARD program on the DVD allows
you to use your laptop to make finer adjustments. It will allow you to become more familiar with how
the system operates, and is excellent for advanced or tuning professionals to allow the engine to reach
its full potential.
It also has the distinct advantage of being compatible with power adder technologies -- nitrous oxide,
superchargers and turbochargers, as well as dual throttle body installation. The Qfi throttle body is
designed for square flange (4150 and 4500 flange) intake manifolds. Your Qfi throttle body will use a
throttle cable linkage designed for square-bore carburetors.
In this Installation/Instruction manual, you will be presented with

The components included with the Qfi system

The required tools to install the system

A list of suggested or required parts for the installation/operation

Instructions for keeping the Qfi system operating at peak efficiency
Please note: The Quick Fuel Technology Qfi electronic fuel injection system is NOT designed for use in
the following applications:

Methanol/Ethanol (alcohol) fuel (Exception - E85 fuel)

Diesel engines

Rotary engines

Odd-fire V6 engines
CAUTION: Use of leaded gasoline will shorten the life of the oxygen sensor