Description
The FiTech EFI 2×4 Aluminum Finish Kit w/InTank Retrofit & CDI Box (93661) provides a comprehensive solution for converting dual 4-barrel carbureted engines to modern electronic fuel injection and enhancing ignition performance. This kit supports up to 625 horsepower and includes dual throttle bodies, an in-tank fuel pump, a Go-Spark CDI ignition system, and a user-friendly 4.5-inch display.
KEY FEATURES AND BENEFITS:
- Improved Performance: Enhances engine performance, fuel efficiency, and drivability through electronic fuel injection.
- Self-Tuning Feature: Simplifies installation and calibration for easy setup.
- Go-Spark Ignition System: Boosts combustion efficiency and power output.
- Reliable Fuel Delivery: The in-tank fuel pump ensures consistent fuel flow.
- User-Friendly Display: The 4.5-inch display allows for easy monitoring and adjustments.
SPECIFICATIONS:
- Maximum Horsepower: 625 HP
- Injection Style: Throttle body (dual 4-barrel)
- Timing Control: Compatible
- ECU: Included
- Fuel Pump: In-tank, 340 lph
- Metering Style: Speed density (MAP-N)
- Throttle Body Mounting Flange: 4-barrel square bore
- Venturi Quantity: 8 (4 per throttle body)
- Venturi Diameter: 43.00mm
- Airflow Rate: 1,700 cfm
- Injector Size: 36 lbs/hr
- Display: 4.5 inch handheld
- Ignition: Go-Spark CDI
HOW TO USE:
- Remove Existing Carburetor: Detach the existing dual 4-barrel carburetor system.
- Install Throttle Bodies: Mount the FiTech dual throttle bodies onto the intake manifold.
- Install Fuel Pump: Place the in-tank fuel pump module within the fuel tank.
- Connect Wiring Harness: Attach the wiring harness to the throttle bodies, sensors, and ECU.
- Install Sensors: Mount the oxygen sensor, MAP sensor, IAT sensor, and TPS sensor.
- Connect Ignition: Install the Go-Spark ignition system and connect it to the distributor.
- Connect Display: Plug in the 4.5-inch display for monitoring and adjustments.
- Initial Setup: Follow the on-screen prompts for initial system calibration.
- Start and Tune: Start the engine and allow the self-tuning feature to calibrate the fuel system.
- Fine-Tune: If necessary, use the handheld display to make manual adjustments.
BENEFITS OF USING THE FITECH EFI 2X4 ALUMINUM FINISH KIT W/INTANK RETROFIT & CDI BOX (93661):
- Consistent Engine Performance: Provides reliable operation across various conditions.
- Improved Fuel Economy: More efficient than traditional carbureted systems.
- Enhanced Throttle Response: Offers smoother idle and quicker acceleration.
- Reduced Emissions: Promotes cleaner combustion and lower emissions.
- Simplified Tuning: Self-learning technology makes calibration easy.
- Reliable Fuel Delivery: Maintained by the included in-tank pump.
- Increased Spark Energy: Enhanced performance from the upgraded ignition system.
FEATURES:
- Throttle Bodies: Dual 4-barrel design with 8 injectors for optimal fuel delivery.
- Integrated ECU: Located within one of the throttle bodies for compact installation.
- Wideband Oxygen Sensor: Enables accurate fuel mixture monitoring and adjustments.
- Fuel Compatibility: Works with gasoline, alcohol, methanol, and flex fuel.
- Complete Wiring Harness: Includes a full sensor package for straightforward installation.
- In-Tank Fuel Pump: 340 LPH for dependable fuel supply.
- Fuel Metering: Utilizes speed density (MAP-N) for precise fuel management.






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