Brianbanscak

Just wondering if its worth buying power pulleys and what brand. I know ASP has a crank and alternator set that seems reasonable, and claims of 13 rear wheel hp? and 2/3 mpg improvement (according to WS6 store.com info) The mpg improvement alone would be worth it to me. What if any down sides? Daily driven bolt on LS1 car

Thanks!

breze84

They really dont add hp, They just free it up.... Sure why not, Doesnt hurt to free up a few ponies......

LS1-450

iTrader: (33)

Yes, it is worth it. As noted, they free up HP that had been needed to drive the stock pullies.

Gordon0652

iTrader: (4)

LT's free up horsepower





Get the pulley.

MonmouthCtyLS7

iTrader: (6)

From what I hear they free up 5-7 hp...I might decide to do it down the road...

SOMbitch

iTrader: (8)

Don't expect to feel a gain on the buttometer...

c0ncEpT

iTrader: (4)

No but we all know that every little bit counts in racing!

SWeiser31

iTrader: (9)

I've heard a tenth and 1 mph at the track.

Sofls1

iTrader: (16)

In my experience, they work. Definitely frees up some power.

teke184

iTrader: (5)

small gains in power
generally the engine revs a little faster


you probably will never see a gas mileage increase....

Brianbanscak

What brand do you think I should go with? Any down side?
Thanks for the info!!

TheBlueKnight

iTrader: (4)

I've heard good things about the ASP. Also heard a lot of good things about SLP's. I'm gonna go with SLP's since they have extra high retaining walls to minimize the chance of throwing a belt. I've seen threads where some people who got the ASP were throwing belts every once and a while.

teke184

iTrader: (5)

i've had good luck with my ASP

threw the belt ONCE in 7yrs...not sure why

Bouvs

iTrader: (12)

I went ASP, still haven't installed it though. I see it as one of those mods that I wouldn't spend my time doing until I'm doing a bunch of things at the same time... like heads/cam

Magnet

iTrader: (36)

An underdrive pulley is a tried and true bolt-on, proven power and ET... Idk why anyone is disapproving??

Z28SteveA4

iTrader: (16)

personally i dont not care for an underdrive pulley. I seen zero gains at the track in either tenths or mph with mine. All that it does is make your car heat up quicker when idling b/c of the lack of coolant flow. When ur sitting in the staging lanes ready to race you dont want to heat up quicker. I might have gain 5hp with it but its not worth the $200. i wouldnt waste your time unless you have a cam, supercharger or turbo. just my .02 boys

LargeOrangeFont

iTrader: (3)