Description
The FiTech Rebel LS 500HP EFI Cath Intake, T. Control & Inline Pump (71089) is a comprehensive electronic fuel injection solution designed to enhance the performance and efficiency of LS engine conversions. This kit provides all necessary components for a complete EFI upgrade, including a short cathedral intake manifold, ECU, sensors, fuel system, and transmission control. It delivers improved throttle response, horsepower, and fuel efficiency while maintaining a clean aesthetic in your engine bay. This complete system is designed to provide a modern fuel injection solution for your LS engine project.
KEY FEATURES AND BENEFITS:
- Designed for LS engine conversions: Ensures compatibility and optimal performance.
- Handles up to 500 horsepower: Offers a cleaner engine bay profile with a redesigned fuel rail bracket.
- Advanced EFI technology: Provides precise fuel delivery and optimized engine control.
- Improved throttle response: Increased horsepower and better fuel efficiency.
- Comprehensive kit: Includes intake manifold, ECU, sensors, fuel rails, injectors, regulator, wiring harness, and a complete fuel delivery system with a 255 LPH inline fuel pump.
- Compatible with boost/nitrous applications: Supports up to 27 PSI and E85 fuel.
SPECIFICATIONS:
- Horsepower Rating: Up to 500 HP
- Throttle Body: 92 mm
- Injectors: 36 LB
- MAP Sensor: 3 Bar (27 PSI)
- Fuel Pump: 255 LPH Inline
- Fuel Hose: AN-6
- Compatibility: LS1, LS2, LS6 engines, E85 fuel
- Transmission Control: Included
HOW TO USE:
- Remove Existing Components: Detach the existing intake manifold, carburetor, and fuel system from the LS engine.
- Install Intake Manifold: Mount the FiTech Rebel LS intake manifold onto the engine, ensuring a proper seal.
- Mount Throttle Body and Sensors: Attach the 92 mm throttle body and install the included sensors (MAP, IAT, etc.).
- Install Fuel Rails and Injectors: Mount the fuel rails and insert the 36 LB injectors into the manifold.
- Connect Wiring Harness: Connect the primary LS harness and sub-harnesses to the ECU and sensors.
- Install Fuel System: Mount the 255 LPH fuel pump, install fuel lines, and connect the fuel pressure regulator.
- Connect Transmission Control: If applicable, connect the transmission control sub-harness.
- Install Oxygen Sensors: Mount the oxygen sensors and connect them to the harness.
- Connect Handheld Monitor: Connect the handheld monitor to the ECU for configuration and monitoring.
- Configure ECU: Use the handheld monitor to configure the ECU settings for your specific engine setup.
- Test and Tune: Start the engine and fine-tune the fuel and ignition settings as needed.
BENEFITS OF USING THE FITECH REBEL LS 500HP EFI CATH INTAKE, T. CONTROL & INLINE PUMP (71089):
- Improved Engine Performance: Enhanced throttle response and horsepower.
- Cleaner Engine Bay: More modern appearance.
- Comprehensive Kit: Simplifies installation.
- Compatibility: With boost/nitrous and E85 fuel.
- Precise Fuel Delivery: And engine control.
- Reliable Fuel Delivery System.
FEATURES:
- Low profile intake manifold design.
- Thicker gauge manifold for quieter injection.
- Redesigned fuel rail bracket for modern aesthetics.
- Integrated MAP and IAT ports.
- Complete wiring harness and sensor package.
- High-capacity 255 LPH inline fuel pump.
- Included fuel filters and fittings.
- Handheld monitor for real-time tuning and diagnostics.
- Transmission control capabilities.
- Oxygen sensor bungs included.






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