Quote:
Originally posted by 96_4.6
It makes your stuff run slower therefor more horsepower but with that the alt run slower and doesnt make good power for like hot heat and cold air. My buddy had some pullies on a 97 gt and his car would always overheat with a 160 stat and would start sometimes and had bad heat and cool not cold air therefore i dont want pullies.
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The reason he overhated was the 160 stat, not the pulleys. You need to change the engagement of the fan if you go that low, and you shouldn't go that low anyway. I know plenty of guys running 160's that overheat with the stock pulleys, and they don't understand why.
U/D pullies give you horsepower because they create less drag on the crank. If you step down the crank pulley and step up the other ones, it takes less force to turn them, just like on a mountain bike. Think of the front crank as the crank pulley, and the alternator and h2o pump pulleys as the rear. Make sense?
FYI, unless you have a big stereo system (read multiple amps and big subs) you don't need to worry about charging. Also, unless you have cooling problems already, you shouldn't have a problem with the u/d pulleys running hot. Do NOT change your t-stat because the system needs to have time to cool the water before running it back through.
get a one piece dampner crank pulley. Steeda and March both make them.
And yes, it does make warranty claims more difficult.