mustangsquared
Founding Member
I believe all the stangs from 95 forward had a 130 amp alt.... I still need to add my UD's.... havent had the time to do it.
I've read, and been told, that 80%+ of all the RWHP gains from U/D pulleys comes from the lighter weight of the after-market aluminum pullies versus the steel OEM pullies. Lower weight of the recipricating assembly always frees uo horsepower. It therefore might make sense to run stock aluminum sized pulleys, unless the stock ones are now aluminum (which I doubt).
Thanks for all your replies and input guys, I'm very grateful...I'll either be going with the Steeda or Roush pulleys..
You can buy just the crank pulley directly from ASP if you like. They manufacturer most of the underdrive pulleys for our distributors. They will give you the part number of the shorter belt required. The crank pulley does most of the job. The water pump pulley adds some additional gains but it is already slowed by 25% from the crank. Or if you order from one of our distributors tell them part number 526400.isn't it true that you can just buy the crank pulley and the water pump pulley? and still get significant gains? that's what i'm tryin to get done tomorrow.. is buy those 2..
Did you not read my post #26? You get additional reduction from the water pump pulley assuming it is larger than the factory. That's in addition to reduction produced by the crank. You don't have to install the water pump pulley to have reduction of the water pump.No offense but I'll have to respectfully disagree...Both the crank and water pump pulleys combined reduce accessory drag by 25% in addition it's the water pump pulley that's considered as the power robbing thief..And you can ask Bigcat that question personally..
How about every one's take on the steeda pullies. I purchased a set but I have not installed them yet. How is the SOTP feeling?