FiTech LS 750 HP EFI Short Intake w/ Pump & LS3 Style Coil (78703)

Description

The FiTech LS 750 HP EFI Short Intake w/ Pump & LS3 Style Coil (78703) provides a comprehensive electronic fuel injection upgrade for LS engines. This kit replaces carburetor setups with modern EFI technology, improving performance, fuel efficiency, and drivability. Designed for up to 750 horsepower, it includes all necessary components for a complete conversion.

KEY FEATURES AND BENEFITS:

• Specifically designed for LS engines, ensuring proper fit and performance.
• Rated for up to 750 horsepower, suitable for high-performance applications.
• Complete kit includes intake manifold, fuel pump, injectors, ECU, and sensors.
• Multi-port fuel injection for precise fuel delivery.
• Speed density (Map-N) metering for accurate air-fuel ratio control.
• Compatible with boost and nitrous oxide power adders.
• Supports various fuel types, including gasoline, alcohol, and methanol.
• In-tank 340 LPH fuel pump for consistent fuel pressure.
• 102mm throttle body with 1500 cfm airflow.
• 55 lbs/hr injectors for optimal performance.

SPECIFICATIONS:

• Maximum Horsepower: 750 HP
• Injection Style: Multi-port
• Timing Control: Compatible
• Power Adder Compatibility: Yes (Boost/Nitrous oxide)
• ECU Included: Yes
• Fuel Pump Included: Yes (In-tank, 340 LPH)
• Metering Style: Speed density (Map-N)
• Intake Manifold: Aluminum, black anodized
• Throttle Body: 102mm, 1500 cfm
• Injectors: 55 lbs/hr
• Fuel Compatibility: Alcohol, Gasoline, Methanol, Flex

HOW TO USE:

• Remove Existing Components: Detach the existing carburetor and intake manifold from the LS engine.
• Install Intake Manifold: Mount the FiTech aluminum intake manifold onto the engine block.
• Install Fuel Rails and Injectors: Secure the multi-port fuel rails and insert the 55 lbs/hr injectors.
• Install Throttle Body: Attach the 102mm throttle body to the intake manifold.
• Install Fuel Pump: Place the 340 LPH in-tank fuel pump within the fuel tank.
• Connect Wiring Harness: Route and connect the provided wiring harness to the ECU and sensors.
• Install Sensors: Mount the O2, MAP, IAT, and TPS sensors.
• Connect Fuel Lines: Connect the fuel lines to the fuel rails and fuel pump, ensuring proper sealing.
• Connect ECU: Plug in the ECU and calibration module.
• Initial Calibration: Use the calibration module to set the initial parameters.
• Test and Tune: Start the engine and fine-tune the settings for optimal performance.

BENEFITS OF USING THE FITECH LS 750 HP EFI SHORT INTAKE W/ PUMP & LS3 STYLE COIL (78703):

• Improved engine performance and throttle response.
• Enhanced fuel efficiency compared to carburetor systems.
• Precise control over air-fuel ratios for optimal combustion.
• Simplified tuning and calibration with the included module.
• Reliable operation under various driving conditions.
• Modernized engine control for classic LS engine platforms.
• Ability to use multiple fuel types.

FEATURES:

• Black anodized aluminum intake manifold.
• Cast aluminum black finished 102mm throttle body.
• Complete wiring harness with labeled connections.
• Comprehensive sensor package for accurate readings.
• Calibration module for easy adjustments.
• Designed for standard deck LS engines.
• GM LS2 4-bolt throttle body mounting pattern.
• Speed density (Map-N) metering.