Description
The FiTech Rebel LS 500HP EFI Cath, T.Cntrl 340LPH Pump & LS3 Coil (78789) is a comprehensive electronic fuel injection solution designed for LS engines. This kit provides a complete engine management upgrade, offering improved performance, throttle response, and fuel efficiency. It includes all necessary components for a seamless installation, making it ideal for engine swaps and performance enhancements.
KEY FEATURES AND BENEFITS:
- Complete EFI system for LS engines, supporting up to 500 HP.
- Includes a short cathedral intake manifold for optimized airflow.
- Features transmission control capabilities for seamless integration.
- Comes with a Go Fuel in-tank regulated pump (340 LPH) for consistent fuel delivery.
- Includes a Go Spark LS3 style coil 8-pack master kit for improved ignition.
- Multi-port fuel injection for precise fuel delivery.
- Speed density (MAP-N) metering for accurate fuel calculations.
- Supports power adders like boost and nitrous oxide.
- Compatible with various fuel types: alcohol, gasoline, methanol, and flex fuel.
SPECIFICATIONS:
- Maximum Horsepower: 500 HP
- Injection Style: Multi-port
- Timing Control: Compatible
- Power Adder Compatibility: Boost/Nitrous oxide
- ECU: Included
- Fuel Pump: In-tank, 340 LPH, regulated
- Transmission Controller: Included
- Metering Style: Speed density (MAP-N)
- Intake Manifold: Short Cathedral, Aluminum (Black Anodized)
- Throttle Body: 92mm, 1250 cfm, GM LS2 4-bolt
- Injectors: 36 lbs/hr
- Fuel Compatibility: Alcohol, Gasoline, Methanol, Flex
- Compatibility: Standard deck LS engines
HOW TO USE:
- Preparation: Disconnect the vehicle’s battery and remove the existing intake and fuel system components.
- Intake Installation: Install the FiTech short cathedral intake manifold onto the LS engine.
- Fuel System Installation: Mount the in-tank fuel pump and connect the fuel lines, ensuring proper fuel pressure regulation.
- Injector Installation: Install the provided fuel injectors into the intake manifold’s fuel rails.
- Throttle Body Installation: Mount the throttle body to the intake manifold.
- Sensor Installation: Install the MAP, IAT, and TPS sensors onto their respective locations.
- Wiring Harness Connection: Connect the wiring harness to the ECU, sensors, injectors, and coil packs.
- ECU Setup: Use the calibration module to configure the ECU settings according to your engine specifications.
- Transmission Control Setup: If applicable, configure the transmission controller to match your transmission.
- Testing: Reconnect the battery and start the engine, checking for proper operation and fuel delivery.
BENEFITS OF USING THE FITECH REBEL LS 500HP EFI CATH, TCnTRL 340LPH PUMP & LS3 COIL (78789):
- Enhanced Engine Performance: Improved throttle response and overall power output.
- Improved Fuel Efficiency: Precise fuel control for better fuel economy.
- Simplified Engine Swaps: Complete EFI solution makes installation straightforward.
- Flexible Fuel Compatibility: Accommodates various fuel types for different applications.
- Comprehensive Control: Over engine parameters for optimal tuning.
- Reliable Fuel Delivery: High flow fuel pump ensures consistent performance.
FEATURES:
- Integrated transmission control module for improved drivability.
- High volume in-tank fuel pump with regulator for reliable fuel supply.
- Pre-terminated wiring harness for simplified installation.
- Aluminum intake manifold with a black anodized finish for durability.
- Oxygen sensor included for accurate air/fuel mixture monitoring.
- Ability to fine-tune engine parameters via the calibration module.






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