My GTR at Clive Atthowe

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duncan
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Post by duncan »

pablo wrote:The slight increase in wheel bhp is down to the reduced loss of power through the transmission as the gearbox oil and diffs warm up.
Absolutely - the Dastek rollers measure the coast down losses for each run to add these to the wheels figures to give the flywheel figures.

Richf
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Post by Richf »

warm tyres can stick to rollers increasing drag and therefore drivetrain losses

Fast Eddy
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Post by Fast Eddy »

I thought it was something like that to give different losses per run in effect
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