tonic

iTrader: (65)

I was looking at the SLP pulleys and ASP pulleys. Are these worth it? Are there any negative effects? Thank you,

dajodsterman

with autos there can be alternator charging probs but replacing the alt pulley when doing the mod can fix that. Changing the alt pulley does lessen the performance gain of changing the pulleys in the first place though. Some people with A4's raise there idle speed instead. I think to probably around 700 rpm in gear but not for sure. If you haven't yet try using the search to get more info. In the mean time maybe someone else with more info will respond.

dragonrage

Not worth it.

Blk97WS6

iTrader: (19)

i had them on my auto LT1, huge PITA because of the alternator. expecially at night with the lights on and either the heat/ac going

v8hunter

iTrader: (2)

I'm suprised at the responses so far...most people will say that the pulley is worth a tenth in the quarter mile. I have an auto (without the alternator pulley) and have not had any charging problems. Do your research and then make your choice whether to get one.

ibanez7

iTrader: (7)

pulleys dont do much for lt1 but they do increase hp on ls1.


I will post my dyno sheet this weekend of it the difference!!!

DarkhorSe_SS

iTrader: (15)

what are some pulley choices for an m6 ls1??

SuperSlow02

iTrader: (16)

the same, you just have to change the alt pully sometimes on an auto because when your sitting still in traffic with it in gear the engine is still under some load while a M6 is always in N while sitting still.

Chris Gage

iTrader: (18)

A pulley on a LS1 is worth it.... it is one of those mods that go well with other. The more power you pruduce, the more of a factor the puley will play. I had a 25% underdrive pulley on my previous 98 Z

DarkhorSe_SS

iTrader: (15)

Name some guys... thx

Chris Gage

iTrader: (18)

ASP, Powerbond, SLP, ATI I believe March has one now but not sure

Lucas'02SS

iTrader: (4)

I would say it is worth it. I think it a good 10 to 15 WHP. I wouldn't do it before like LTs or a cam though. That would be one of the later mods I would do.

y2k_ta

iTrader: (80)

There's this little thing called a search engine....find one and type in "f-body underdrive pulleys" in the search box.

Andros

iTrader: (5)

i put my a4 in Nuetral when im coming to a stop or sitting in traffic. so do i need an alt pulley?

98hardtopZ

iTrader: (7)

why would you do that?

00T\A

Crank Pulley on an LS1 is worth about 5-10 rwhp.

WS6 Rampage

iTrader: (3)

I think I've heard about people do'n this before. I think the myth is that its supposed to save a bit of fuel. Alot of people pop em into N on a down hill and let her roll on down. Which might work,....I guess,.......but in traffic or come'n to a dead stop sounds to me like sheer !



I'm personally look'n at SLPs pulleys to get after I'm done with gears and a TC.

davered00ss

iTrader: (4)

I would get the SLP or Powerbond pully. I have the SLP, but have not installed it yet. I'm lazy.

davered00ss

iTrader: (4)

I should have done it when I did my cam.

austin21

do i need an underdrive or an overdrive pully for a non-dd M6..or does it matter if its a non-dd