Calculate RPM for given Speed (MPH), Rear Gear Ratio and Trans Gear Ratio
Speedmaster Tools
Engine / Performance
- - Bore Size & Bore/Stroke Ratio
- - Carburetor Size Needed
- - Engine Size
- - Engine's Compression Ratio
- - Fuel Injector Flow from change in Fuel Pressure
- - HorsePower from Intake Airflow
- - Horsepower gain from adding Blower Pressure
- - Intake Airflow from Horsepower
- - Rod Stroke Ratio
- - Stroke Size
Rear Gear Requirements
- - Rear End Gear Ratio Needed
- - Speed from RPM, Rear & Trans. Gear Ratios
- - RPM from Speed, Rear & Trans. Gear Ratios
Drag Strip Performance
- - 1/8 Mile Horsepower Requirements from MPH
- - 1/8 Mile Horsepower Requirements from ET
- - 1/8 Mile ET from MPH
- - MPH - Km/H in 1/4 Mile using Horsepower
- - 1/4 Mile Horsepower Requirements from MPH
- - 1/4 Mile Horsepower Requirements from ET
- - 1/4 Mile ET from Horsepower
- - 1/4 Mile ET from MPH
- - MPH from 60 foot time