Does anyone have a good calculator application/powerpoint doc to work out rpm?

Here is the figures:
50.1hp @110km/h
3rd gear, 3.76 diff, 10" wheels...

There used to be a good one on the moke website, that has since disappeared...

_________________
Here am I sitting in my tin can far above the Moon
Planet Earth is blue and there's nothing I can do...



“A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.” - Jeremy Clarkson

I think Simon K mentioned one on here recently.
It would be nice if that damned dyno gave rpm on the X axis not KMH, wouldn't it.

[edit] your 3rd gear is 1.43:1, so with a 3.76 diff,

MPH/1000 = 14.7/1.43 = 10.28 MPH/1000 in 3rd.
or 16.65 KMH/1000.

so 110KMH = 6,600rpm approx.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

I put this spreadsheet together ages ago, might be what you need...

[edit] Plugging your values into it (using Cooper 'S' gear ratios - 3rd being 1.357:1) gives 6130rpm in third at 110km/h.

[edit 2] Doc beat me, it's a little-wheeler Moke... then yes, 3rd is 1.430:1 but I get 6460 RPM at 110km/h.

Thanks guys

_________________
Here am I sitting in my tin can far above the Moon
Planet Earth is blue and there's nothing I can do...



“A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.” - Jeremy Clarkson

I Ilke the one on the "Guessworks" site....

It has options for the majority of gearbox permutations ....

http://www.guess-works.com/Tech/ratio.htm

(I'm sure it used to have a kph option but seems only to be mph these days)

It's got an Oz rodchange box in it but with the std, non-S ratios. same ratios as Mini K.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.