Torque gains from 3.4" pulley - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 11-20-2004, 01:27 AM   #11
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Quote:
Originally Posted by Sol
Sweet. I can't wait till I get it installed.
Yeah, even though mine is a hair bigger(3.5), I noticed a big difference with the smaller pulley. It really woke my bonne up!
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Old 11-20-2004, 10:26 PM   #12
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When I put this pulley on, does the PCM have to take time to adjust anything?
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Old 11-21-2004, 12:22 AM   #13
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No, but it may get a little stronger as it works out the best A/F ratio for various performance needs.
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Old 11-21-2004, 12:31 AM   #14
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Ok, reason I ask is, when I got the downpipe installed, after driving it for a while, the car seemed to respond a lot better after some time.

Wondered if it would do the same with the pulley.
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Old 11-21-2004, 12:33 AM   #15
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Quote:
Originally Posted by Sol
Ok, reason I ask is, when I got the downpipe installed, after driving it for a while, the car seemed to respond a lot better after some time.

Wondered if it would do the same with the pulley.
It doesnt take time to work, you will notice it right off. However it will improve and adapt to your driving style. The PCM is always learning and adjusting.
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Old 11-25-2004, 04:00 PM   #16
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Quote:
Originally Posted by kevo
Quote:
Originally Posted by Sol
Sweet. I can't wait till I get it installed.
Yeah, even though mine is a hair bigger(3.5), I noticed a big difference with the smaller pulley. It really woke my bonne up!
Did you notice any KR in extreme weather conditions? Any baseline and improvement measurements using the 3.5" upper pulley.

Thanks
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Old 11-25-2004, 04:51 PM   #17
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I want a smaller pulley, but need to know how low I can go...the numbers definantly look intriguing......lol
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Old 11-25-2004, 05:16 PM   #18
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What'* stock size, and what is the difference between going bigger and going smaller?
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Old 11-25-2004, 05:19 PM   #19
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92-93 Stock is 2.55" Can go as low as 2.2" safely.
94-95 Stock is 2.85" Can go as low as 2.5" (running 92-93 stock pulley is cheaper).
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Old 11-25-2004, 05:21 PM   #20
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Just a matter of finding a stock pulley.....I swear they're impossible....About to buy new.
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