Thread: Drag racing
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Old 19th June 2014, 13:48
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MadDogMoggy MadDogMoggy is offline
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From memory (lol):

1st 3.266
2nd 2.13
3rd 1.517
4th 1.147
5th 0.921
6th 0.738

Final drive 4.764

It will drive at 30mph at about 1500rpm in 6th, which gives a (theoretical) top speed of 160mph at 8000 rpm (running 195/50/15s)

Crunching the numbers, it's nearer 1600 RPM assuming a rolling circumference of 1.757 metres:

1 mile = 1.609344 Km
1 mile = 916 tyre revolutions
30 miles = 27480 revolutions
30 MPH = 27480 revs/hour
30 MPH = 458 revs/minute
tyre revs/min * Final Drive * 6th Gear Ratio = Engine rpm
Engine RPM = 458*4.764*0.738
=1610 RPM

Don't know if any of that helps (especially as I went off on a tangent!)
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