Please email Rankings@TapoutTuning.com with any changes or edits to these rankings.
Tapout Tunes dominate at the track, on the street and on the dyno as well.
- SAE correction factor is the industry standard, adjusting for weather conditions in a realistic and universally accepted manner.
- STD numbers are artificially inflated by 2 to 5%, and are shown in the lower portion of the chart below.
- Uncorrected dyno numbers are not included. That would be like using a tape measure with no markings.
- Hub dyno numbers are excluded, since they typically report substantially higher numbers than dynos that measure at the tires
Lots of people claim to ‘have a 650 whp ATS-V’, but the facts tell a different story. The truth is that less than 0.50% of all ATS-Vs have actual dyno charts with 650 whp using the industry standard SAE correction factor. Tapout Tunes power 87% of the absolute most powerful LF4 powered cars with legitimate dyno charts.
|Intake Mods||Fuel Mods|
|IN||Intake and/or air filters upgrade||OB||Octane boost or race fuel mix|
|TC||Turbochargers upgrade||EB||Ethanol blend fuel > E15|
|TB||Throttle body modification or upgrade||MI||Methanol injection|
|IC||Intercooler upgrade including interchiller or ice box||LP||Low pressure fuel system upgrade|
|HP||High pressure fuel pump (HPFP) upgrade|
|FC||Fuel cam upgrade|
|NO||Nitrous oxide injection|
|FI||Fuel injectors upgrade|
|Ignition Mods||Cylinder Head Mods|
|SP||Spark plugs upgrade||VS||Valve springs upgrade|
|CH||Cylinder heads upgrade|
|EX||Exhaust system modification|