Description
The FiTech EFI 2×4 625HP Bright Aluminum w/In Tank Retrofit Kit (36261) offers a comprehensive solution for converting carbureted engines to electronic fuel injection. This kit features dual 4-barrel throttle bodies, a 340 LPH in-tank fuel pump, and an integrated ECU, providing a complete system for enhanced performance and fuel efficiency.
KEY FEATURES AND BENEFITS:
- High Power Support: This kit supports up to 625 horsepower naturally aspirated.
- Self-Tuning Capabilities: Allows for automatic fuel adjustments for optimal performance.
- Consistent Fuel Delivery: The included 340 LPH in-tank fuel pump ensures reliable fuel flow.
- Versatile Fuel Compatibility: Compatible with gasoline, alcohol, and flex fuel.
- Integrated ECU: Controls cooling fan and air conditioning input for better management.
- User-Friendly Interface: The 4.5-inch handheld display provides tuning options and system monitoring.
SPECIFICATIONS:
- Maximum Horsepower: 625 HP
- Injection Style: Throttle body
- Timing Control: Yes
- Power Adder: No
- ECU Included: Yes
- Fuel Pump: 340 LPH In-tank
- Transmission Controller: No
- Metering: Speed density (Map-N) or speed throttle (Alpha-N)
- Throttle Body Flange: Dual 4-barrel square bore (4150)
- Venturi: 8 (43 mm diameter)
- Airflow: 1700 CFM
- Injectors: 36 lbs/hr
- Fuel Type: Alcohol, Gasoline, Methanol, Flex
- Compatibility: Universal fit for engines up to 625HP with a 4-barrel intake manifold
HOW TO USE:
- Fuel System Installation: Install the 340 LPH in-tank fuel pump module within the fuel tank, ensuring proper fittings and connections.
- Throttle Body Mounting: Mount the dual 4-barrel throttle bodies onto the intake manifold using the 4150 flange.
- Wiring Harness Connection: Connect the wiring harness to the throttle bodies, ECU, and sensors, following the provided instructions.
- Sensor Installation: Install the oxygen sensor, MAP sensor, IAT sensor, and TPS sensor in their designated locations.
- ECU Setup: Connect the 4.5-inch handheld display to the ECU and follow the on-screen prompts for initial setup and calibration.
- Fuel and Cooling System Checks: Verify all fuel lines and cooling system connections for leaks and proper operation.
- Initial Start and Self-Tuning: Start the engine and allow the self-tuning feature to adjust fuel parameters. Monitor the handheld display for any error codes.
- Fine Tuning: After initial self-tuning is completed, use the handheld display to fine-tune the system to your liking.
BENEFITS OF USING THE FITECH EFI 2×4 625HP BRIGHT ALUMINUM W/ IN TANK RETROFIT KIT (36261):
- Improved Fuel Efficiency: Delivers better mileage compared to carbureted systems.
- Smoother Idle: Enhances throttle response for a more enjoyable driving experience.
- Consistent Performance: Maintains reliability across varying operating conditions.
- Simplified Tuning: Calibration and adjustments are made easy through the handheld display.
- Comprehensive Kit: Includes everything needed for a complete fuel delivery solution.
- Multiple Fuel Types: Capable of running various fuel types for flexibility.
FEATURES:
- Polished Cast Aluminum: Durable throttle body finish for aesthetics and longevity.
- Wideband O2 Sensor: Included for accurate air-fuel ratio monitoring.
- Mini USB Cable: For data logging and software updates.
- In-Tank Fuel Pump Module: Designed for easy retrofit installations.
- Flexible Metering Options: Supports both speed density and speed throttle metering.
- 4.5 Inch Handheld Display: For user-friendly interaction and adjustments.
- Complete Wiring Harness: Included for straightforward installation.





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