Mark,
I'm not sure if pushing harder= more friction or drag. At least not in a
significant way. Even if more friction is generated at higher engine speeds,
the friction would not be linear and you would feel most of the effect
immediately upon spinning the drive train.
Peter
'68 TR250
on 10/5/02 9:22 PM, Mark Hooper at mhooper@pixelsystems.com wrote:
> Dick:
>
> If the engine is pushing harder on everything, then the internal friction of
> the drivetrain will be increased and will thus lose more power. That would
> tend to mean that the losses increase with the power through the system.
> Maybe not a scientific measurement, but seems sort of common sense.
>
> Mark Hooper
> 72 TR6
>
>
>
> -----Original Message-----
> From: tr6taylor@webtv.net
> To: 6pack@autox.team.net
> Sent: 05/10/02 12:21 PM
> Subject: Drive train HP losses...
>
> Listers--- I have read in competent car literature, such as Road &Track,
> that the horsepower loss thru the drive train and engine accessories are
> pretty much fixed. If this is true, then as an example if a Triumph
> engine puts ot 105 hp at the crank, and 85 hp at the rear wheels, the
> loss is of course 20 hp. This would mean that if you gain 45 hp thru
> modification of the engine, ALL of the gain will show up at the rear
> wheels, as nothing was done to increase the drag on the drive train, or
> accessories.
> In short, it is not a loss based on a percentage of engine power, but a
> fixed one.
>
> Dick
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