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Re: 90q20v perf
Grant Lenahan wrote:
> My friend at the dealer reports great variability in
> the performance of the 20v NA motors (90q20v and coupes).
> 143hp, as you know, is well below the spec of 165 @ a gazillion RPM.
No it isn't.
162hp quoted from the factory is "flywheel" hp.
143hp measured by the GTech Pro is "delivered" hp.
That's about a 10% loss in the drivetrain, which is close
to the 15-20% rule of thumb.