Good evening
Does anyone have the formula to work out speed by revs?

I'm trying to work out the speed of 5800 and 6000rpm on 10inch wheel and a 3.44 diff.

Thanks

This one says 99mph at 6000rpm in forth gear
http://www.guess-works.com/Tech/ratio.htm

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154.2 and 159.5 respectively...

what you need to do is calculate the rolling circumference of the tyre, then because 4th gear is 1:1 you can multiply that by the diff ratio. I have a spreadsheet that JC shared a few years ago that's very handy

PM me an email address and I'll send it

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did I tell you that I won a trophy?

Thanks guys.

Simon pm'd

16.4 mph per thousand revs... fine tune for actual wheel rolling radius...

Cheers, Ian