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Re: power loss

To: DOUG ODOM <popms@thegrid.net>, Landspeed <land-speed@autox.team.net>
Subject: Re: power loss
From: Chris Harris <yesford@clear.net.nz>
Date: Mon, 04 Mar 2002 11:08:38 +1300
Doug, congratulations on your excellent, "real world" conclusion to a long
debated issue. That's one area I won't be loosing any sleep over again.

Chris Harris......................NZed


> O.K. I have stayed out of the power loss debates so far. The last
> couple of months I have been helping tech for a road race group called
> N.A.S.A. They run a class called A.S.C. American Stock Car. Now the
> rules make you run a sealed ZZ4 crate motor. The motors have been
> dynoing at 361 to 366 HP at the crank. This weekend we ran them on a
> Dynojet chassis dyno. I will give you a sample of what we found below.
> The main thing that I found interesting was this, Some cars had Ford 9",
> some with Quick changes. Some had Jerico's some with T-10's. All had the
> same spec tire and about the same rear gear ratio. So what was so
> interesting? This--- They ALL lost the same amount of power!!!
> Highest power 308.0   Lowest 302.2
> Highest torque 362.3  Lowest 361.7
>   The car with the 308 power ran in the back and the lowest power car
> won by 4 sec.
> I think most of this power train loss figuring and charting is just a
> case of mental masturbation.
> Doug Odom in big ditch

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