Robert M. Lang wrote:
>
> Dave M. commented on possibly having a Horsepower competition at a car
> event...
> then figure out how to award folks by measured output. The problem is - how
> do you select winners??? I mean - a Spitfire has no chance of building the
> kind of power you can get with a really tweaked-out TR8 motor. I'm talking
> Woody Cooper's "Bad 8" here. That sucker's making some serious power!
The standard measurement is in relation to displacement. Simple to
compute HP per liter. Blown engines have to state maximum boost, and
that's computed against a volumetric efficiency of 1, so something with
10 psi of boost at 2 liters would be 1 + 10/14.7 = 1.68 x 2 liters =
3.36 liters, although there would be typically few examples of those.
But, an 1147cc Spit engine putting out 95 hp would still be making 82 hp
per liter--_very_ respectable output--and by the same comparison,
something with a 3.5 liter V-8 would have to put out 289 hp to match it.
Cheers.
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