Horsepower loss in drive train

Bernard Littau bernardl@acumenassociates.com
Tue, 23 Jul 2002 14:27:02 -0700


> I have to question the statement that there are large HP losses in the
> drive train - one previous post mentioned a 70 HP loss, I think in a 914.
>
> 70 HP is 750 watts times 70, or 52,500 watts (52KW), which is enough to
> light up your house and your central A/C for several hours.
>
[snip]
>
> The statement "lost in the drive train" makes no sense.
>
[snip]

I think more correct is "lost in the drive train as heat".  The 70 HP figure
given seems excessive, but I've seen figures in the 10-15% range at stock HP
levels for losses.  Clearly, if you double the engine HP, you don't double
the losses.

This is why you have transmission oil coolers :-)

Best,

Bernard Littau
Woodinville, WA
'88 5ktq