Description
The FiTech Black 650 HP EFI w/ 255 LPH In-Tank Pump & CDI (96521) is a comprehensive solution for upgrading carbureted engines to modern electronic fuel injection. Designed for engines producing up to 650 horsepower, this kit provides improved fuel efficiency, enhanced engine performance, and easier starting. It includes all necessary components for a complete installation, such as a 4-barrel throttle body, an in-tank fuel pump, and essential sensors.
KEY FEATURES AND BENEFITS:
- Power Support: Supports up to 650 horsepower.
- EFI Conversion: Converts 4-barrel square bore carburetors to electronic fuel injection.
- Throttle Body: Includes a 950 CFM throttle body with 44mm venturis.
- High-Flow Injectors: Comes with 80 lbs/hr fuel injectors.
- Metering Style: Features a speed density (Map-N) metering style.
- Fuel Pump: Includes an in-tank 255 LPH regulated fuel pump.
- Performance Improvement: Provides improved fuel efficiency and engine performance.
- Simplified Starting: Simplifies engine starting and idle.
- Self-Learning: Offers self-learning capabilities for optimal tuning.
SPECIFICATIONS:
- Maximum Horsepower: 650 HP
- Injection Style: Throttle body
- Metering Style: Speed density (Map-N)
- Throttle Body Mounting Flange: 4-barrel square bore
- Airflow Rate: 950 cfm
- Injector Size: 80 lbs/hr
- Fuel Pump Style: In-tank fuel pump
HOW TO USE:
- Remove the existing 4-barrel carburetor from the engine.
- Install the FiTech 96521 throttle body onto the intake manifold.
- Mount the in-tank fuel pump within the fuel tank.
- Connect the wiring harness to the ECU and engine sensors.
- Install the provided oxygen, MAP, IAT, and TPS sensors.
- Connect the fuel lines to the throttle body and fuel pump.
- Verify all connections and ensure proper grounding.
- Program the ECU with initial engine parameters.
- Start the engine and allow the system to self-learn.
- Make fine-tuning adjustments as needed.
BENEFITS OF USING THE FITEC BLACK 650 HP EFI W/ 255 LPH IN-TANK PUMP & CDI (96521):
- Consistent and reliable engine performance.
- Reduced fuel consumption compared to traditional carburetors.
- Elimination of cold-start issues and rough idle.
- Simplified engine tuning with self-learning capabilities.
- Modernization of classic engines with advanced technology.
- Reliable fuel delivery.
FEATURES:
- Cast aluminum throttle body construction.
- Black throttle body finish.
- Complete wiring harness included.
- Calibration module included.
- Oxygen, MAP, IAT, and TPS sensors provided.
- Integrated fuel pressure regulator.
- Designed for universal fitment on compatible engines.
- Sold as a complete kit.





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