Description
The FiTech Rebel LS 750HP EFI Cath. 340LPH TC & Returnless Mod. (76391) is a comprehensive solution designed to enhance the performance of LS engines. This kit provides precise electronic fuel injection and transmission control, optimizing engine output and drivability. Included is a complete fuel system, intake manifold, and all necessary electronic components for a streamlined installation.
KEY FEATURES AND BENEFITS:
- High-Performance Engineering: Supports up to 750 horsepower for LS engines.
- Multi-port Fuel Injection: Ensures accurate fuel delivery for optimal performance.
- Speed Density Metering: Provides precise fuel management and efficiency.
- Transmission Control: Allows for seamless integration and optimized shifting.
- In-tank 340 LPH Fuel Pump: Offers consistent fuel pressure for reliable operation.
- Power Adder Compatibility: Supports boost and nitrous oxide systems for enhanced performance.
- High-Flow Components: Includes a 102mm throttle body and 55 lbs/hr injectors designed for high-flow applications.
SPECIFICATIONS:
- Maximum Horsepower: 750 HP
- Injection Style: Multi-port
- Timing Control: Compatible
- Power Adder: Boost/Nitrous oxide compatible
- ECU: Included
- Fuel Pump: In-tank 340 LPH
- Transmission Controller: Included
- Metering Style: Speed density (Map-N)
- Intake Manifold: Aluminum, black anodized
- Throttle Body: 102 mm, cast aluminum, black
- Injectors: 55 lbs/hr
- Fuel Compatibility: Alcohol, gasoline, methanol, flex fuel
- Compatibility: Standard deck LS engines, GM LS2 4-bolt throttle body flange
HOW TO USE:
- Preparation: Disconnect the vehicle’s battery and remove the existing intake manifold and fuel system.
- Fuel System Installation: Install the in-tank fuel pump module within the fuel tank. Connect the fuel lines and pressure regulator.
- Intake Manifold Installation: Mount the provided cathedral intake manifold onto the engine.
- Throttle Body and Injector Installation: Attach the 102 mm throttle body and install the 55 lbs/hr fuel injectors.
- ECU and Wiring Harness Installation: Secure the ECU in a suitable location and connect the wiring harness to all sensors, injectors, and the transmission controller.
- Sensor Installation: Install the oxygen sensor, MAP sensor, IAT sensor, and TPS sensor.
- Calibration: Use the included calibration module to program the ECU with the appropriate settings for your engine.
- Testing: Reconnect the battery and start the engine. Verify proper fuel delivery and transmission operation.
BENEFITS OF USING THE FITECH REBEL LS 750HP EFI CATH. 340LPH TC & RETURNLESS MOD. (76391):
- Improved Engine Performance: Increases horsepower output significantly.
- Precise Fuel and Timing Control: Ensures optimal efficiency and performance.
- Seamless Integration: Designed specifically for LS engines for enhanced drivability.
- Enhanced Drivability: Includes transmission control for smoother operation.
- Compatibility with Power Adders: Expands performance potential with boost and nitrous options.
- Reliable Fuel Delivery: Maintains performance under high-demand conditions.
FEATURES:
- Complete EFI system in one kit for easy setup.
- High-flow 102 mm throttle body for maximum airflow.
- 55 lbs/hr fuel injectors tailored for high horsepower applications.
- Compatibility with various fuel types for versatile applications.
- Speed density fuel management for accurate fuel delivery.
- Black anodized intake manifold for durability and aesthetics.
- Full sensor suite included for comprehensive installation.
- Calibration module for user tuning and adjustments.






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