bigredss

I want to buy and ASP Underdrive Pulley for my 2001 SS Camaro, but it is an automatic and i need to know if im gonna have to get the alt. overdrive pulley to keep it charging right. And if i do get the Alt. overdrive pulley will it cause me to get any less power out of the underdrive pulley? Also, what kind of gains will i see with the pulley/pullies???
Thanks.

2MuchRiceMakesMeSick

I was fine with the crank pulley only. You need a new bolt, two new (different size) belts, and the UD pulley itself. I just sold mind. You might check the FS section.

Ferocity02

iTrader: (60)

Crank pulley only should work fine. I would not get the underdrive alternator pulley though. If you have charging issues, it's a simple fix the the overdrive alternator pulley.

bigredss

Thanks for the info. I've got 410 hp and run high 12's in the 1/4 - so if i get the UD pulley will I be able to feel any difference at all, and about how much time will it knock off my 1/4 mile?

Roarin_8

iTrader: (5)

Is the crank pulley worth all the trouble of installation?

bigredss

hey roarin_8 is that slp smooth bellows worth the $50 or not???

Roarin_8

iTrader: (5)

NOOOOOOOOO As you can see by the times between the 2 cars. Makes the engine bay look nice but by no means is it worth 50 dollars which is why I don't have it on the Z.

1badV6

You'll be fine with just the crank pulley. You should torque it to specs 150FT lbs of TQ!

Zach@Texas-Speed

iTrader: (7)

or more!!....and use antiseize, you dont want that sucker comin off!!

02blkragtopz

iTrader: (1)

My instructions said 240ft lbs (or until bottomed out), loosen retighten to 37ft lbs + 120 degrees Doesn't look like too much hassle to me. Nothing else to do in a Michigan winter.