underdrive pullys to me? I've been reading somethings about them but don't understand. What excatly to they do? What things need to be done to put them on (can you put them on a bone stock car)? What are some good types? And are they worth it?
CManT1914 said:Yea the pulleys for the alternator and water pump are smaller? than stock, so they make those accessories spin slower. Then the crank pulley is bigger? so it takes the power that was being used to spin those larger pullies and applies it to the crank instead. Something like that.
Funanin said:Other way around... Accessory pulleys are bigger, crank pulley is smaller.
Funanin said:Well it looks like u like BBK, so i would say go with BBK if u want to buy a set.
What they do is basically slow down the accessories (alternator, air conditioner compressor, power steering pump, water pump) so the engine has less "drag" when trying to accelerate. Basically its like when u have ur A/C on and ur car runs slower thats the opposite of what underdrive pulleys do.
manpowermustang said:aeromotive produce the most HP.
89MustangGX said:I didn't even know they produced underdrive pullies nor have I seen these test results. Where did this come from?
PNY PWR said:Let's come up with some $100 or so mods better than UD pulleys...