Quote:
Originally Posted by RST
To be honest Roman, I hadn't realised I was the only one who put it at the fly. You can see the wheel Hp from the chart that I posted so use that if you'd prefer.
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Yep that's fine, that's what I did.
Quote:
I think I disagreed more with the comment than the wheel vs. fly argument.
RE: the rpm comment. I didn't pay much notice to it but assumed it was due to the gearbox ratio (presume they used 4th). The difference is 1.06 which was close enough I figured to the 1.03 figure on the red-top web page.
Cheers,
Richard
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What type of dyno is it exactly? Is/was it a rolling road, or is it a hub dyno?
With rolling road dynos, you dont even need to know the engine RPM, wheel speed, gearbox ratios, etc etc... It does the horsepower calculation based on how much torque is applied to the rollers, and the RPM of the rollers. If they're adding on a percentage of power to give your flywheel power figures, then max hp should still occur at exactly the same RPM....
If they're adding 'coast down' losses onto the power that you made at the wheels, well, that's just wrong for all sorts of reasons.... It's adding the engine braking effect as a drivetrain loss for starters.