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#3 Re: Speed Calculation
70coupe12 Posted on: 2003/5/24 11:30
engine rpm x gear ratio x diff ratio x distance around circumference of wheel in metres.
gives you how many metres you travel in a minute. convert this to kilometres a minute (divide by 1000) then times by 60 and thats your speed in kmh an hour



#2 Re: Speed Calculation
Lobster Posted on: 2003/5/24 11:30
Would depend on what engine/diff/wheels/cam/carby/gearbox you have...
Better to just sit next to someone doing the speed limit and see how many revs that is...


#1 Speed Calculation
Greer1200 Posted on: 2003/5/24 10:57
Does anyone know the formula for calculating speed from rpm.






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