FiTech’s Nemesis 4500 Fuel Injection System is Built for Big Horsepower

The FiTech Nemesis 4500 Fuel Injection System means serious business on and off the track. This self-learning system supports up to 1,600 horsepower and is ideal for street machines, big block crate engines, and forced-induction race engines that use a 4500 Dominator carburetor flange.

At the heart of the system is a CNC-machined aluminum throttle body that flows up to 2,146 cfm at 28 inches of water. The throttle body’s parabolic entry and 2.300-inch blades provide crisp throttle response at low speeds while unlocking maximum top-end power. Other features include 1:1 throttle linkage plus multiple vacuum and boost reference ports that provide versatile options for tuning and accessory routing.

Other features include:
• Self-learning ECU and wiring harness
• Compatible with magnetic pickup distributors and external timing controllers
• Eight high-flow fuel injectors
• Dual IAC motors for precise idle tracking and adjustment on large cubic-inch engines
• Digital touchscreen tuner for initial setup, monitoring, and calibration
• Primary shaft TPS sends accurate throttle position data to the ECU
• Three-bar TMAP compatibility for naturally aspirated, nitrous, or boosted setups
• Threaded IAT sensor port is included on each unit to support blow-through and boosted setups
• IAT, MAP, TPS, and oxygen sensors included

The Nemesis 4500 EFI systems are available with or without a matched fuel delivery package. It’s based on the Go-Fuel Dual Pump In-Tank Module with two 340 LPH pumps. The module is designed for fuel cells or custom tanks from 7 to 16 inches deep.

Other components include:
• Go-Fuel Regulator adjustable from 30 to 70 PSI with a vacuum reference port for boosted applications
• Liquid-filled fuel pressure gauge
• AN fittings and brackets

Summit Racing also carries FiTech’s Nemesis 4500 standalone aluminum throttle bodies for enthusiasts with custom EFI systems.

CHECK OUT FITECH NEMESIS 4500 FUEL INJECTION SYSTEMS HERE