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Wed Apr 14, 2004 10:26 pm
Cumbria
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Cumbria
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Fri Apr 16, 2004 4:50 pm
Kent
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Thu Apr 15, 2004 12:33 pm
Fleet, Hampshire
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Thu Apr 15, 2004 12:33 pm
Fleet, Hampshire
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Wed Apr 14, 2004 10:26 pm
Cumbria
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Thu Apr 15, 2004 12:33 pm
Fleet, Hampshire
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3474
Thu Apr 15, 2004 8:10 am
Colchester, Essex
simontaylor wrote:I have calculated my speed in 2nd on the following assumptions.
Jacked up the car and measured 1 circumfrence of the tyre, standard tyre 255/45/15, 1.89 meters whilst sreching the tape measure.
Assume max revs are 6100 RPM
60 Mins in 1 Hr.
2nd ratio is 2.06
final drive ratio is 3.44
Overall gearbox ratio (2.06*3.44) = 7.0864
1000 M in a Km
1.98 * 6100 * 60 / 7.0864 / 1000 = 97.6 kph = 60.66 mph (1.609 k:m ph)
So I should reach 60mph in 2nd, but only just, and it would be a bit easier with a little more tread on the tyre or if the rev limiter was a couple of hunderd more. 6300 theoretically would be 62.6 mph.
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