Description
The FiTech Ultimate LS EFI 500HP w/70012 Kit + Force Fuel (75212) is a comprehensive solution for converting your LS engine to modern electronic fuel injection. This kit is designed to enhance performance, fuel efficiency, and drivability. It features a self-learning ECU, a 92mm throttle body, and the innovative Force Fuel system for simplified fuel delivery. Optional transmission control is available for compatible GM transmissions.
KEY FEATURES AND BENEFITS:
- LS Engine Specific: Engineered for direct fitment and optimal performance with LS series engines.
- Force Fuel System: Simplifies fuel delivery, often eliminating the need for a new fuel tank, ensuring consistent fuel pressure.
- Self-Learning ECU: Automatically adjusts fuel and spark for optimal engine performance.
- Touchscreen Controller: Provides easy programming, monitoring, and data logging.
- Optional Transmission Control: Enables electronic control of GM 4L60, 4L65, 4L70, and 4L80 transmissions.
- Complete Kit: Includes all necessary components for installation, such as fuel rails, throttle body, wiring harness, and sensors.
SPECIFICATIONS:
- Maximum horsepower: 500 HP
- Injection style: Multi-port
- Throttle body size: 92mm
- Injector size: 36 lbs./hr.
- Fuel pump flow: 340 lph
- Transmission control: Optional for GM 4L60/65/70/80
- ECU: Self-learning
- Fuel delivery: Force Fuel system (58 psi)
HOW TO USE:
- Preparation: Disconnect the existing fuel and ignition systems.
- Installation: Mount the intake manifold, throttle body, and fuel rails onto the LS engine.
- Wiring: Connect the wiring harness to the engine sensors and ECU, following the provided instructions.
- Fuel System Setup: Install the Force Fuel system and connect the fuel lines.
- Sensor Connection: Connect all sensors (MAP, IAT, TPS, Oxygen).
- ECU Programming: Use the touchscreen controller to input basic engine parameters.
- Initial Start-up: Start the engine and allow the self-learning ECU to calibrate.
- Fine-Tuning: Use the touchscreen controller to make adjustments as needed.
BENEFITS OF USING THE FITECH ULTIMATE LS EFI 500HP W/70012 KIT + FORCE FUEL (75212):
- Improved engine performance and throttle response.
- Enhanced fuel efficiency.
- Simplified fuel delivery with the Force Fuel system.
- Easy tuning and monitoring with the touchscreen controller.
- Optional transmission control for better drivability.
- Modernized engine management for classic vehicles.
FEATURES:
- Corrosion Resistance: Black anodized aluminum components.
- Accurate Monitoring: Bosch wideband oxygen sensor for precise AFR readings.
- Compatibility: Works with both 24X and 58X crank and cam signals.
- High-Flow Throttle Body: Cable-operated for improved airflow.
- Secure Connections: AN fittings for reliable fuel connections.
- Data Logging: Capabilities via touchscreen controller for performance analysis.
- Powerband Design: Intake manifold designed for a 1500 to 6500 RPM range.
- Fuel System Modifications: External fuel pump assembly for ease of modifications.
- Programmable Outputs: Ability to program two fan control outputs.
- Coil Compatibility: Designed for both car and truck coil types.





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