Performance Tuning LSX LS1 LS2 LS3 LS6 LS7 LS9

Performance & Horsepower Fuel Economy & Gas Mileage
  • News Item

    17 :: April :: 2009

    Performance Tuning - Corvette / GTO / Camaro / Firebird / CTS-V
    EFI-Tuning is proud to announce that our performance...Read More
  • News Item

    14 :: April :: 2009

    2006 Corvette LS2 Supercharger Tune
    Performance tuning update:

    The 65 Pontiac...Read More
  • News Item

    15 :: August :: 2008

    1999 GMC Truck with 6.0 liter Escalade engine tuned
    Currently we are working on a 6.0 liter Cadillac Escalade...Read More
View Archive

LSX Performance Tuner, Dyno Tuning, Street Tune

Professionally tuned LSX and Corvette engines show better fuel mileage and power output.

Dyno performance tuning is a method of measuring power by putting the vehicles engine under load. Dyno tuning your GTO / Camaro / Corvette / Firebird etc. is the most accurate way to extract the most performance and fuel economy from the GM LS series of engines while maintaining perfect driveability. We also provide "street tuning" which is a seat of the pants style tune, providing similar to dyno performance results for factory computer equipped Camaros, Corvettes, Firebirds and GTOs.

For example, a Z06 C6 Corvette has a factory calibrated computer is setup to run at stachiometric or an air to fuel ratio of 14.7 (or slightly higher) which is mainly to stratify emissions standards. However, modifications that lean out the fuel mixture and provide better "breathing" are not accounted for at the factory and will reduce the corvette's performance and mileage if not properly tuned for the performance parts added to it.

firebird tuner

Engine Tuning = Increased Horsepower & Torque

Performance modifications require correct engine calibration to produce advertised gains with LS series engines!

Intake, exhaust, headers, throttle bodies, turbochargers... the list goes on and on but they all have one thing in common - they won't perform at full potential without proper computer tuning. Advertised gains on LS1, LS2, LS3, LS6, and LS7 engines with full length headers for example, are measured after the LS engine has been tuned. Prior to tuning usually the power gain is roughly one-third to half of the advertised number. Why cheat yourself out of free horsepower and torque? Contact us today.

corvette tuning

Corvette Performance Tuning

The GM LS series of engines (LS1, LS2, LS3, LS6, LS7, LS9, LSA, LQ9, L92, LSX) is our tuning specialty!

From the monster 2009 Corvette ZR1 LS9 to the Corvette C5's LS1, we love the most recent generation of Chevrolet's / GM's small block engine, the LSX. The factory computer is set up in such a tame way that even fully stock LS equipped vehicles can pick up 10-15 horsepower with a tune. Add a free flowing intake, headers and a full exhuast and watch that number nearly triple! We provide engine building services and will install performance parts on your Corvette, Camaro, GTO, CTS-V or Firebird to make it just that much faster. Learn more...

camaro dyno tune

ECU Tunes Increase Fuel Economy and Gas Mileage

Tune your truck's computer and increase your gas mileage!

Did you know that a properly tuned and calibrated truck engine (LSX) computer not only produces more power but also provides better fuel efficiency? When EFI-Tuning modifies a vehicles computer settings we adjust the air to fuel ratio to ensure the optimum ratios for both on throttle performance as well as around town driving. Average fuel economy increases are anywhere from 1-4 mpg depending on vehicle. One of our regular pest control clients has their whole fleet of chevy fullsizes tuned to maximize savings. With gas prices approaching 5 dollars a gallon, you owe it to yourself to have your truck's computer properly tuned.

CTS-V engine tuner