Underdrive pullys: Fact or Fiction?
04-23-2004, 06:34 AM
#11
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Join Date: Mar 2004
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Posts: 333
RE: Underdrive pullys: Fact or Fiction?
Pulleys on a 4.6L won't make a huge difference because Ford became more aggressive with their pulleys on later models. I say you might get 3rwhp gains from them on a 99+GT. On a 95 or prior 5-8rwhp.
04-23-2004, 08:39 AM
#12
1st Gear Member
Join Date: Jan 2004
Location: USA
Posts: 126
RE: Underdrive pullys: Fact or Fiction?
You will need an air impact gun, and a ratchet to loosen the belt tensioner. I have BBK underdrive pulleys, and it took 30-40 min to install 3.
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