Underdrive Pulleys


#1

How do underdrive pulleys help your horse power? Why dose the smaller diameter pulley improve your horse power? :dunno


#2

slows down your alternator and water pump, since they create drag to turn them over.


#3

what sort of effects dose that have on your car?


#4

none really, some cars have a small chance of running hotter than normal or charging the battery especially if in really hot standstill traffic or a big amp stereo system. more of a problem on the 5.0’s not as much with the 4.6’s


#5

what about the 3.8s?
And why dose it give you hp?


#6

i have seen 4.6’s not gain 1 hp out of them. :dunno


#7

You won’t gain horsepower from them, you’ll get lost horsepower back from them.


#8

yea, you get some of the power used to run accesories back b/c it is freed up due to less of the engine going to the alt…


#9

who has ac and all that shit? take it out lol thats just more weight! :lol