Power Pulleys, are they worth it?

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Sep 29, 2009 | 08:17 PM

Brianbanscak

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Power Pulleys, are they worth it?

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!

Sep 29, 2009 | 11:34 PM

breze84

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From: Chicago, IL

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

Sep 30, 2009 | 05:26 AM

LS1-450

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

Sep 30, 2009 | 05:35 AM

Gordon0652

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LT's free up horsepower

Get the pulley.

Sep 30, 2009 | 06:22 AM

MonmouthCtyLS7

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

Sep 30, 2009 | 10:40 AM

SOMbitch

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

Sep 30, 2009 | 11:32 AM

c0ncEpT

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From: Shelby twp, MI

Quote:

Originally Posted by SOMbitch

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

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

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Oct 1, 2009 | 01:29 AM

Sofls1

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

Oct 1, 2009 | 06:50 AM

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teke184

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small gains in power
generally the engine revs a little faster

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

Oct 1, 2009 | 05:58 PM

#11

Brianbanscak

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

Oct 1, 2009 | 07:29 PM

#12

TheBlueKnight

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From: Nevada

Quote:

Originally Posted by Brianbanscak

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

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.

Oct 1, 2009 | 07:31 PM

#13

teke184

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i've had good luck with my ASP

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

Oct 1, 2009 | 07:58 PM

#14

Bouvs

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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

Oct 1, 2009 | 10:24 PM

#15

Magnet

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

Oct 1, 2009 | 11:31 PM

#16

Z28SteveA4

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From: New jersey

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