FiTech LS 750 HP EFI Short Intake w/ Returnless Module & Coil (78803)

Description

The FiTech LS 750 HP EFI Short Intake w/ Returnless Module & Coil (78803) provides a comprehensive solution for upgrading LS engines to modern electronic fuel injection. This kit includes all essential components for a complete conversion, offering improved engine performance, fuel efficiency, and precise control. Designed for engines producing up to 750 horsepower, the system features a 102mm throttle body, in-tank fuel pump, ECU, and necessary sensors.

KEY FEATURES AND BENEFITS:

• This kit delivers a complete EFI solution, including a short cathedral intake manifold, 340 LPH in-tank fuel pump, and LS3-style coil packs.
• The system supports up to 750 horsepower and features self-tuning capabilities, simplifying the setup process.
• Compatible with boosted applications and offers sequential fuel and spark control.
• The included 4.5-inch touchscreen display allows for easy monitoring and adjustments.

SPECIFICATIONS:

• Maximum Horsepower: 750 HP
• Injection Style: Multi-port
• Timing Control: Yes
• Power Adder Compatibility: Boost/Nitrous oxide
• ECU Included: Yes
• Fuel Pump: In-tank 340 LPH returnless module
• Metering Style: Speed density (Map-N)
• Intake Material: Aluminum (Black Anodized)
• Throttle Body: 102mm (GM LS2 4-bolt)
• Injectors: 55 lbs/hr
• Fuel Type: Alcohol, Gasoline, Methanol, Flex

HOW TO USE:

• Preparation: Disconnect the battery and remove the existing intake manifold and fuel system components.
• Fuel System Installation: Install the in-tank fuel pump module, ensuring proper connections and secure placement.
• Intake Manifold Installation: Mount the short cathedral intake manifold onto the engine, securing it with the provided hardware.
• Throttle Body and Injector Installation: Attach the 102mm throttle body and install the 55 lbs/hr injectors into the fuel rails.
• Wiring Harness Connection: Connect the wiring harness to the ECU, sensors, and fuel pump, following the provided diagrams.
• Sensor Installation: Install the MAP, IAT, TPS, and oxygen sensors in their designated locations.
• Coil Pack Installation: Mount the LS3-style coil packs and connect them to the wiring harness.
• ECU Setup: Connect the 4.5-inch touchscreen display and follow the on-screen instructions for initial setup and calibration.
• Fuel Pressure Adjustment: Adjust the fuel pressure regulator to the recommended setting.
• Testing and Tuning: Start the engine and use the touchscreen display to monitor and fine-tune the system as needed.

BENEFITS OF USING THE FITECH LS 750 HP EFI SHORT INTAKE W/ RETURNLESS MODULE & COIL (78803):

• Improved engine performance and throttle response.
• Enhanced fuel efficiency.
• Easier cold starts and smoother idle.
• Simplified installation with a complete master kit.
• Self-tuning capabilities for optimized performance.
• Modern EFI technology for classic engine upgrades.

FEATURES:

• Fabricated 3mm thick aluminum sheet metal intake manifold, TIG welded.
• Cast, cable activated billet aluminum 102mm throttle body.
• Handheld controller with color touch screen and cable.
• Windshield mount for touch screen controller.
• LS ECU with 55 lb./hr. injectors.
• High volume billet fuel rails.
• Sequential fuel and spark control with individual cylinder trim.
• Connects to 24x and 58x cam sensors.
• Knock sensor control connects to factory sensors.
• 3-Bar MAP sensor for boosted applications up to 30 psi.
• Tach output driver works with most tachometers.
• Two programmable electric fan outputs.
• Supplied with WBO2 sensors.
• Custom wiring harness for a direct plug-in installation.