All right, the fan is likely to free up some H.P. because your reducing
mass that the motor has to turn. 12 H.P. is probably optimistic. But an
on/ off switch for the alternator is a load of crap. Sorry to be blunt, but
the only horses to be gained from eliminating the alternator is to remove
the parasitic drag from the alternator belt. An on/off switch for the
current it creates would have no beneficial effect what so ever.
While were at it, seat of the pants acceleration tests are not a good
indicator for performance enhancements either. It might feel different, but
that doesn't mean it's faster. The only accurate way to judge whether a
change is beneficial or detrimental is by dyno. If that's not available,
try a stop watch.
Rant mode now in retrograde
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Original Text
From: <LBPB1@aol.com>, on 3/12/1999 10:21 AM:
Tom,
I work with a friend on racing projects every now and then and he
informed me that two ways to collect wasted HP were to one, remove the
standard fan and replace with an electric one (about $60.00 at disount
auto)
and two, set the alternator up with an on-off switch. According to him both
these things are worth about 12 hp each. Its almost like free power! Some
people spend hundreds or thousands of bucks to get an extra 24 horses. He
told
me to test it by making an acceleration run with the fan and then remove it
and try agian. He claims that the difference is very noticable. I have not
tried it yet since my car is still on the shelf and in boxes :(
PLB3
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