Description
FiTech Ultimate LS 500 HP EFI System for LS3 / L92
Complete self-tuning electronic fuel injection kit with 92mm throttle body and rectangle port intake manifold for non-transmission control applications.
Overview
The FiTech Ultimate LS 500HP EFI System (PN 70011) simplifies LS swaps and high-performance upgrades by offering a complete, self-tuning induction setup. Designed specifically for LS3 and L92 engines with rectangle port heads, this kit eliminates the complexity of sourcing mismatched intake parts, splicing factory wiring, or relying on custom ECU flashes. Engineered for street and track performance up to 500 horsepower, the kit combines a low-profile fabricated aluminum intake manifold with a high-flow 92mm throttle body, high-volume billet fuel rails, and 36 lb/hr injectors.
Operating on a 1,500 to 6,500 RPM powerband, the system features a handheld touch-screen controller for simple setup, live sensor viewing, and data logging. This non-transmission control version is tailored for vehicles equipped with manual transmissions or standalone transmission controllers, delivering optimum fuel delivery, crisp throttle response, and smooth power delivery across all driving conditions.
Key Features
- ☑ Self-Tuning Technology: Adaptive ECU automatically tunes air/fuel ratios in real-time as you drive.
- ☑ LS3 / L92 Fitment: Designed for GM LS3 and L92 rectangle port cylinder heads.
- ☑ High-Flow 92mm Throttle Body: Cable-operated 4-bolt billet throttle body provides 1,250 CFM airflow.
- ☑ Fabricated Intake Manifold: 6.5″ tall black anodized aluminum manifold engineered for 1,500-6,500 RPM operation.
- ☑ Complete Fuel Delivery: Includes high-volume billet fuel rails, AN fittings, fuel crossover, and 36 lb/hr fuel injectors.
- ☑ Ignition & Timing Control: Supports 24X and 58X crank/cam signals with programmable timing control.
- ☑ User-Friendly Handheld Controller: High-resolution color touch-screen display with suction cup mount for effortless setup and monitoring.
Technical Specifications
| Brand | FiTech Fuel Injection |
|---|---|
| Manufacturer Part Number (MPN) | 70011 |
| Engine Compatibility | GM LS3 / L92 (Rectangle Port Heads) |
| Horsepower Rating | Up to 500 Flywheel HP |
| Powerband | 1,500 – 6,500 RPM |
| Intake Height | 6.5 Inches |
| Intake Finish | Black Anodized Aluminum |
| Throttle Body Size | 92mm (Cable-Operated) |
| Airflow Rating | 1,250 CFM |
| Injector Size | 36 lbs/hr |
| Crank / Cam Signal Support | 24X and 58X Reluctor Wheels |
| Transmission Control | No (Manual Trans or Standalone Controller) |
What’s Included in the Box
- Black Anodized LS3/L92 Fabricated Intake Manifold
- 92mm Cable-Operated Throttle Body & Gasket
- High-Volume Billet Aluminum Fuel Rails & Crossover Line
- 36 lbs/hr High-Impedance Fuel Injectors (Set of 8)
- Self-Tuning ECU Engine Management Controller
- Touch-Screen Handheld Controller & Mounting Bracket
- Complete Plug-and-Play Wiring Harness
- Bosch Wideband Oxygen Sensor & Weld-In Stainless Bung
- Coolant Temperature Sensor & MAP Sensor
Built with quality and precision, FiTech Fuel Injection systems bring modern self-tuning convenience to high-performance LS engines. When purchasing through JP Racing, you receive official manufacturer-backed quality alongside expert UK technical support and fast UK delivery.




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