DynoGearRatio

发行商 Skunk River Restorations, LLC AppTrack Ninja。

Axle & DynoJet gear ratios

Find your car's rear axle (final drive) ratio with nothing but your phone, your tachometer, and a steady stretch of road. No OBD-II adapter, no jacking up the car, no counting ring-and-pinion teeth. Enter your tire size, hold a steady speed with your tach on a round number, and tap Capture. The app reads your GPS speed at that instant and pairs it with your RPM and tire size to calculate the ratio. Take a few readings and it averages them — and shows the closest common production ratio as a sanity check. HOW IT WORKS Enter your tire: printed metric size (like 205/55R16), overall diameter, or …

分类: Utilities

的 App Store 排名、截图、估算和类似应用。 DynoGearRatio.