TIRES, GEARS, MPH CALCULATORS

           For Carb. CFM info and calculators, CLICK HERE!

 

Find RPM
MPH:  Transmission Ratio:    Axle Ratio:   Tire Diameter:		RPM:

Find New Gear Ratio With New Tire Size
New Tire Diameter:    Old Tire Diameter:	Current Gear Ratio:	New Gear Ratio:

Changed gears or tires? This calculator can help...

Find MPH
RPM:   Tire Diameter:   Axle Ratio: Transmission Ratio:		MPH:

Convert P-Metric Tire To Tire Diameter Inches
Example: 195/75R15 /   R		Tire Diameter:

Wondering how far out your speedo will be after the tire size change?

Speedo Converter
Original Tire Diameter:    New Tire Diameter:	Speedometer Reading (MPH):	Corrected MPH:

Now your ready to burn some rubber, CLICK HERE for our 1/4 mile h.p. calculator!

bob k. mando has worked out an .xls spread sheet that calculates all your power train combinations with click in transmission choices! Click HERE to download it!