Quote:
Originally posted by crazypete
So what consumes more HP:
1. a 75 amp fan and it's drain on the alternator (taken into account the larger alternator necessary too)
2. The clutch fan assembly.
I'm all about lightening the load to the motor and making everything spin easier. I really dont supposed that an underdriven stock alternator is anywhere up to the task. How about low speed with the stocker?...
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I was not looking for the small HP gain. I'm all about getting enough air to flow across my radiator to keep it cool at idle.
I tried the stock clutch fan and also a flex fan without any success.
Stock fans are useless at highway speeds anyway.
An electric fan works only when you want it to and doesn't rob as much HP as a rotating fan off an engine does.
It probably also increases the life of the water pump.
A stock fan will never flow 2000+ cfm of air either.
The taurus fan only draws high amps for a millisecond and then draws about 35-40 amps. That's the reason behind the 75 amp relay.
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'82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.
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