Description
The FiTech Retro LS 650 HP Classic Gold EFI w/ Force Fuel Tank (35571) delivers modern electronic fuel injection (EFI) performance while retaining the classic aesthetic of a carburetor. This system is designed for LS engines, offering a comprehensive solution for improved horsepower and fuel efficiency. The kit includes a gold throttle body, pre-terminated wiring harness, and a handheld touchscreen controller for easy tuning.
KEY FEATURES AND BENEFITS:
- This system provides up to 650 horsepower capability for LS engines.
- It offers transmission control for GM 4L60/65/80E transmissions, allowing for precise adjustments to shift points.
- Self-tuning functionality simplifies the setup process, and the included Force Fuel mini surge tank ensures a consistent fuel supply.
- The kit includes all necessary sensors and a wideband oxygen sensor for accurate monitoring.
SPECIFICATIONS:
- Maximum Horsepower: 650 HP
- Injection Style: Throttle body
- Timing Control: Compatible
- Transmission Control: Included (4L60/65/80E)
- Throttle Body Mounting Flange: 4-barrel square bore
- Injector Size: 80 lbs/hr
- Airflow Rate: 950 CFM
- Metering Style: Speed density (MAP-N)
- Fuel System: Force Fuel mini surge tank
HOW TO USE:
- Install the gold throttle body onto the intake manifold.
- Connect the pre-terminated wiring harness to the LS engine sensors.
- Mount the remote ECU and connect the transmission control wiring.
- Install the Force Fuel mini surge tank and connect the fuel lines.
- Mount the wideband oxygen sensor in the exhaust.
- Connect the handheld touchscreen controller.
- Start the engine and allow the self-tuning feature to calibrate the system.
- Use the handheld controller to fine-tune settings as needed.
BENEFITS OF USING THE FITECH RETRO LS 650 HP CLASSIC GOLD EFI W/ FORCE FUEL TANK (35571):
- This system allows for the benefits of EFI, such as improved fuel efficiency and reliable starts, while maintaining the classic look of a carburetor.
- The transmission control feature allows for customized shift points, enhancing the driving experience.
- The self-tuning feature reduces the complexity of installation and setup.
- The Force Fuel system ensures a stable fuel supply, improving overall performance.
FEATURES:
- Classic gold throttle body design.
- Pre-terminated wiring harness with LS-specific sensors.
- Remote ECU with 4L60/65/80E transmission control.
- Handheld touchscreen controller for easy tuning.
- Wideband oxygen sensor for accurate monitoring.
- Force Fuel mini surge tank with internal fuel pump and regulator.
- 80 lbs/hr injectors for high-performance applications.
- 950 CFM airflow rating.
- 44 mm Venturi Diameter.
- Speed density metering.






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