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Power Adders N20, Turbo/Supercharging
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Old 02-04-2010, 01:31 PM
02chevyls1 02chevyls1 is offline
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underdrive pullys yes or no

do underdrive pullys actually give you hp gains on a dyno. are they worth it to put them on.
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Old 02-04-2010, 02:59 PM
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yournamehere018 yournamehere018 is offline
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About 10 or 15hp normally. If you get them make sure it comes with an alternator pulley so it puts out enough power.
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Old 02-06-2010, 10:36 AM
keniff keniff is offline
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i have just an UD pulley no ALT pulley...works great imo.

i didnt notice a "seat of the pants" difference but we'll see what the track says.
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Old 02-06-2010, 10:41 AM
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Originally Posted by keniff View Post
i have just an UD pulley no ALT pulley...works great imo.

i didnt notice a "seat of the pants" difference but we'll see what the track says.
.01-.02 seconds faster
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Old 02-06-2010, 10:50 AM
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DBRODS DBRODS is offline
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Originally Posted by truckinL33 View Post
.01-.02 seconds faster
Fixed for ya, usually gains of .1 -.2 tenths faster
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Old 02-06-2010, 11:00 AM
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Fixed for ya, usually gains of .1 -.2 tenths faster
That you, that's what I ment. Good thing there are lots of people on here with a keen eye
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stock 'till spring time

[Today 12:39 PM] bangbangskeetskeet: You suck it trebeck
[Today 06:47 PM] TxStVanWilder: get behind and rape me old man
[Today 09:38 PM] pl4yboy: Truckin, I need a cam for my PS3
[Today 10:21 AM] TATERNATOR: Just remember when we say nighty night keep your butt hole tight we mean it
[Today 09:24 AM] Duct_tape123: I wanna play with the hors!!!!!!!!!!
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Old 02-07-2010, 11:26 AM
darnie1987 darnie1987 is offline
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any one got a link to find some under drive pullys?
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Old 02-07-2010, 02:14 PM
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Quote:
Originally Posted by darnie1987 View Post
any one got a link to find some under drive pullys?
Let me google that for you
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Cold air intake - Flowmaster Super 40
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V tune - 3.90 True Trac
5/7 Drop - SS front end
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Old 02-07-2010, 02:31 PM
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Quote:
Originally Posted by yournamehere018 View Post
If you get them make sure it comes with an alternator pulley so it puts out enough power.
IMO, if you have increased idle speed because of a cam or such, there's really no need for the alt. pulley.
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Old 02-08-2010, 01:16 PM
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I have never seen this before!
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