Available Now at Summit Racing: FiTech Ultimate LS Fuel Injection Systems

So you have a GM LS engine that’s in need of a horsepower boost. Summit Racing has just the thing. FiTech’s Ultimate LS Fuel Injection Systems are plug and play, self-tuning induction systems that are complete from intake manifold to wiring harness—no messing with factory wiring, reflashing ECUs, or mismatching parts. If you can turn a wrench and snap wiring connectors together, you can install an Ultimate LS system.

Available in versions that support 500 to 750 horsepower, the systems include:
• TIG-welded, low profile fabricated intake manifold with CNC-machined ports, 1,500-6,500 RPM powerband
• High-flow, cable operated 92mm (500 horsepower) or 102mm (750 horsepower) throttle body with progressive linkage pulley for smooth throttle transitions
• Billet aluminum fuel rails with AN fitting and fuel crossover
• Flow-matched fuel injectors, Bosch wideband oxygen sensor, and wiring harness
• 24X and 58X crank and cam compatible, works with custom cams
• Compatible with car and truck coils

The brains behind the Ultimate LS system is the programmable ECU. You can leave it in self-learning mode, or you can use the handheld color touch screen to fine-tune the ECU for your particular engine combination. Tuning features include:
• 3 BAR MAP sensor for forced induction—automatically detects up to 30 PSI boost
• Sequential fuel and spark control with individual cylinder trim
• On-the-fly target air/fuel ratio and spark timing control
• Data logging
• Knock sensor control
• Two programmable electric fan control outputs (coolant and 1 bar MAP)
• Tach and speedometer output drivers compatible with most gauges

The FiTech Ultimate LS Fuel Injection Systems are available for LS1/LS2 and LS3 engines. You can get a system with an optional transmission control feature that works with 4L60, 4L65, 4L70, and 4L80 automatic transmissions.

This video outlines all of the Ultimate LS goodness.  

SEE FITECH’S ULTIMATE LS FUEL INJECTION SYSTEMS AT SUMMIT RACING