Pulley dyno numbers??
12-23-2004, 12:00 AM
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Pulley dyno numbers?? Hey guys, what were your gains from an underdrive pulley? which do you reccommend? Just want to see if it's worth it.
Matt
Matt
12-23-2004, 08:23 AM
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Hey jrp how about a sticky for pullies? common brands with pros and cons for each or just the differences. Just something I was thinking about with all the pulley threads lately
12-23-2004, 10:01 AM
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Originally Posted by jrp
.1-.2 off your e.t and 10-12rwhp.
12-23-2004, 08:25 PM
#7
Originally Posted by WS-Sick
Is that what you gained personally or is that what you have come up with from various results of others? I still need to get a pulley and ported TB and I was wondering how much it would help.
pulley and TB is ~15-18rwhp
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12-23-2004, 09:27 PM
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Wow!!! I never thought a pulley would do that much!!! I put an underdrive pulley on my LT1 car, and all it did was mess up my idle. Thanks, for everyones input.
12-24-2004, 10:32 AM
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I have no verified dyno results to show but after I installed my ASP pulley I immediately noticed a faster revving engine along with better throttle response. It's one of those little need to have mods that works really well in conjunction with others. I noticed a way better gain from my home ported throttle body especially at higher rpms.
12-24-2004, 11:50 AM
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Man, I have a Spec 14lb Aluminum Flywheel too, I noticed a hige difference in how fast it revved when I installed it. The first few times I got on it I hit rev limiter on accident...I cant immagine it revving any faster....I'm definitely getting a pulley now. 
12-24-2004, 03:43 PM
#14
Originally Posted by seabirdak
hate to burst your bubble but ported TB isn't that good of a mod, and people acutally lose hp, best just to buy a bigger one
i've seen plenty of ABA test to prove that a stock sized ported TB is worth 8-12rwhp.
its the BBK 80mm and the like that seem to loose power or not gain much, go figure.
12-24-2004, 03:58 PM
#15
ive heard atleast 3 from a tb and 8 on a cam/head car min. man i think i might get one of the asp underdrive pulleys.. i could use a tenth and 10 hp before i do a cam thats for sure!
12-30-2004, 04:53 PM
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i was thinking of getting one but i'll have to get the overdrive alt. pulley because of the 15s in the trunk.if i can gain anywhere near 10 rwhp i'll be happy.