how much if any hp do gettin aftermarket pulleys free up and if so what kind r the best to get
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Torch Red 86’ fox-bored out cammed 302 lowered 2 inches, full eibach suspension, ss brake and fuel lines, custom x pipe, flowmaster super 40's, pro 5.0 shifter, momo steering wheel corbue seats and harness's, custom bolt in roll bar painted torch red to match, lx front bumper , rear seat delete, more to come not, to bad for my first car :)
Torch Red 86’ fox-bored out cammed 302 lowered 2 inches, full eibach suspension, ss brake and fuel lines, custom x pipe, flowmaster super 40's, pro 5.0 shifter, momo steering wheel corbue seats and harness's, custom bolt in roll bar painted torch red to match, lx front bumper , rear seat delete, more to come not, to bad for my first car :)
ya ebay usualy has shitty knock offs but what problems come with em
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Torch Red 86’ fox-bored out cammed 302 lowered 2 inches, full eibach suspension, ss brake and fuel lines, custom x pipe, flowmaster super 40's, pro 5.0 shifter, momo steering wheel corbue seats and harness's, custom bolt in roll bar painted torch red to match, lx front bumper , rear seat delete, more to come not, to bad for my first car :)
Torch Red 86’ fox-bored out cammed 302 lowered 2 inches, full eibach suspension, ss brake and fuel lines, custom x pipe, flowmaster super 40's, pro 5.0 shifter, momo steering wheel corbue seats and harness's, custom bolt in roll bar painted torch red to match, lx front bumper , rear seat delete, more to come not, to bad for my first car :)
I bought mine strictly for looks, wouldnt charge at idle so I had to get another alt pulley. Waste of $. Some people have no problems but theres no real gain and I have the luck to get ones that dont work correctly.
Not really worth the trouble I think. I would look for other ways to squeeze out some ponies like smog delete, electric fan or some weight loss. Not worth what spdjnky 42 said.
I installed an ASP underdrive crank pulley 2-1/2 years ago and I've had no problems. I just followed ASP's instructions to raise the idle speed to 750rpm so there would be no charging/overheating problems at idle. Most of the problems others have with underdrives stem from having underdrive water pump and alternator pulleys in addition to the crank pulley. ASP recommend that you raise the idle speed to 900rpm if you install the complete underdrive pulley set.
I bought march performance ones they costed $95 I'm pretty sure on summit, I think there worth it everyone always says they have charging and cooling problems but I never have seen any problems for less than $100 I think it's worth it , good Luck mAn
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Originally Posted by ekim7971
how much are they
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1989 Mustang GT -full exhust from equal length bbks back-underdrive pulleys- jet power chip- summit cap/rotor with wires- msd blaster coil-14 degree timing-373s- cai-
underdrive pulleys 
