EFI Systems

EZ-EFI Self Tuning Electronic Fuel Injection

For years racers have known that FAST fuel injection systems are an excellent choice for their high revving, nitrous oxide, supercharger and turbocharger equipped rides. The FAST classic and XFI systems have also found their way onto many street machines. Though these systems served their users well, the Engineering team at FAST saw that many didn't have a need for the advanced functionality of the XFI systems, nor did they want to undergo a more lengthy install which may require them to replace their intake manifold and ignition systems.

Many prospective user's reasons for making the switch to EFI are the result of a desire to get the throttle response, mileage and power benefits that result from the ability to maintain the precise air to fuel ratios an electronic fuel injection system is able to deliver. In addition to delivering the aforementioned benefits, the FAST EZ-EFI systems also put an end to changing jets every time the weather and/or altitude changes.

While competing systems employ 20 year old OEM technology ECU's, awkward, costly and fragile mass air sensors, and narrow band O2 sensors (great for mileage, but not helpful for tuning for power), the FAST EZ-EFI offers dyno proven performance that may only be obtained from a wideband O2 equipped, speed density EFI system. Only the EZ-EFI system is worthy to wear the FAST brand name. In addition to its technical advantages, all FAST efi products are backed by the resources of the COMP performance group. If you were ever to have a question about, or problem with an EZ EFI product you can be assured that you will receive the service and support you need.

The EZ-EFI features an all new, patent-pending, self tuning control strategy. Simply hook it up, answer the basic setup Wizard questions on the included hand-held display and watch the system tune itself as you drive. Countless research and development hours were spent on a number of prototype test vehicles to develop a high-quality system truly worthy of the FAST brand.

Capable of supporting engines making up to 550 horsepower, the FAST EZ-EFI Self Tuning Fuel Injection System is a complete system which includes an ECU, wide-band oxygen sensor, wiring harness, fuel injectors, optional fuel pump kit and other assorted components, including an innovative 4150 flange Throttle Body. This Throttle Body delivers a total package approach for any 4150 (Holley square bore) type intake manifold. All necessary components are provided with the EZ-EFI kit, including appropriate fuel injectors and fuel rails. In addition, the EZ-EFI system works with original carb-style throttle linkage and is ready to accept all OEM sensors.

Installation of an EZ-EFI system can be completed easily in an afternoon and doesn’t require any EFI experience or expertise.