Description
The FiTech Rebel LS 500HP EFI Short Cath. T.Control & 340 LPH Kit (76689) is a comprehensive electronic fuel injection solution designed for LS engines aiming for up to 500 horsepower. This kit provides all the essential components to transition from a carbureted setup to a modern, efficient EFI system. It includes a short cathedral intake manifold, a high-flow 92mm throttle body, and a powerful in-tank fuel pump, ensuring optimal fuel delivery. The system also features an ECU for precise engine management, allowing for timing adjustments and compatibility with power adders like boost or nitrous oxide. Furthermore, the inclusion of a transmission controller allows for integrated transmission management.
KEY FEATURES AND BENEFITS:
- Multi-port fuel injection for accurate fuel delivery.
- Timing control for optimized engine performance.
- Power adder compatibility for increased horsepower (boost or nitrous oxide).
- Included ECU, fuel pump, and transmission controller simplify installation.
- Aluminum intake manifold and 92mm throttle body for efficient airflow.
- Compatibility with various fuel types: alcohol, gasoline, methanol, and flex.
- Speed density (MAP-N) metering style for reliable performance across different operating conditions.
SPECIFICATIONS:
- Maximum Horsepower: 500 HP
- Injection Style: Multi-port
- Timing Control Compatible: Yes
- Power Adder Compatible: Yes (Boost/Nitrous oxide)
- ECU Included: Yes
- Fuel Pump Included: Yes (In-tank, 340 LPH)
- Transmission Controller Included: Yes
- Metering Style: Speed density (MAP-N)
- Intake Manifold Material: Aluminum (Black Anodized)
- Throttle Body: 92mm (GM LS2 4-bolt)
- Injectors: 36 lbs./hr
- Fuel Type: Alcohol, Gasoline, Methanol, Flex
- Compatibility: LS Series Engines
HOW TO USE:
- Preparation: Disconnect the battery and remove the existing intake manifold and carburetor setup.
- Installation of Intake Manifold: Install the FiTech aluminum intake manifold onto the engine, ensuring proper gasket placement and torque specifications.
- Throttle Body Installation: Mount the 92mm throttle body onto the intake manifold.
- Fuel Pump Installation: Install the in-tank fuel pump inside the fuel tank.
- Injector Installation: Install the 36 lbs./hr fuel injectors into the intake manifold.
- Sensor Installation: Mount the MAP, IAT, and TPS sensors onto their respective locations. Install the oxygen sensor in the exhaust system.
- Wiring Harness Connection: Connect the wiring harness to all sensors, injectors, ECU, and transmission controller.
- ECU Setup: Connect the ECU and configure the system using the provided calibration module.
- Fuel Pressure Regulation: Connect and adjust the fuel pressure regulator.
- Testing and Tuning: Verify all connections, prime the fuel system, and start the engine. Tune the ECU as needed for optimal performance.
BENEFITS OF USING THE FITECH REBEL LS 500HP EFI SHORT CATH. T.CONTROL & 340 LPH KIT (76689):
- Improved Fuel Efficiency: Enhanced engine performance through precise control over fuel delivery and timing.
- Enhanced Throttle Response: Provides better drivability and responsiveness.
- Simplified Installation: Comprehensive kit minimizes the need for additional components.
- Compatibility with Power Adders: Supports increased horsepower for performance enthusiasts.
- Reliable Performance: Operates effectively across varying conditions.
FEATURES:
- Integrated transmission control for seamless operation.
- High-flow 92mm throttle body for optimal air intake.
- Speed density (MAP-N) fuel metering for accuracy.
- In-tank fuel pump with regulated fuel pressure for reliability.
- Aluminum intake manifold construction for reduced weight.
- Calibration module for easy system tuning.
- Support for multiple fuel types for versatility.
- Complete wiring harness included for straightforward installation.






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