Drag Racing Calc Pro

* Need to know your vehicle speed at a given engine RPM? This calculation comes useful when targeting a certain engine RPM with a given tire, trans-gear and differential gear-ratio for highway cruising or quarter-mile passes. * Engine RPM @ MPH This one is the opposite of the first one. This one comes handy to experiment with different tire-size, trans-gear and differential gear ratio combinations to reach a certain vehicle speed and keep the engine RPM within a given range for controlling MPG, engine noise, exhaust tone, etc. *Gear Ratio. Useful when wanting to determine the gear ratio present in your differential without disassembly. * Gear Set Ratio. Found a set of gears at a swap-meet or the junk yard and don't know the ratio? Enter the number of teeth for both the ring-gear and the pinion and you're done! * Overall Tire Diameter. Very useful before making a final decision about purchasing wheels and tires! Test before you buy! Get accurate dimensions by combining different tire sizes and wheel diameters, profiles and widths! * Elapsed Time. Predict your 1/4 Mile E/T by providing the engine HP and race-car weight! * Horsepower @ E.T. Don't know your engine's power? Easily get a good approximation based on the car's weight and 1/4 mile E.T.! * And if this isn't enough, you don't need to surf the net looking for the required trans data! It's included inside the App with more manufacturers added constantly! * Save money by experimenting before making permanent mods! * Free lifetime updates! Download now!