Help with slight confusion
Help with slight confusion ok i searched some things and read some old posts. im looking for my next mod. I see getting new underdrive pulley willl help me. Ok so i can get that will i need a new belt or can i just through it on? also i see some guys haveing their ac belts off or the compressor and you feeling the difference. is this right and will i need a new belt if i do that? i can bring up the old posts if i typed in the wrong thing or its confusing. 
thanks guys.
thanks guys.
On The Tree
Joined: Mar 2006
Posts: 149
Likes: 0
From: Roseville
the main serpentine belt is the one for a mid 90s chevy truck or a chevy astro van... i figured this out when i went and got a new belt from the dealer and when i saw it was too long i looked at the crank pulley and realized i had an ASP pulley lol
I would just order the pulley and a new belts from the sponsers. The new a/c belt *looks* to be the same length as the old one, but I'm not making promises. The main belt part of the pulley is smaller on an UD pulley, but the a/c belt section looks unchanged.
The a/c belt won't use any power as long as the a/c isn't turned on. Even when you go WOT, the a/c automatically turns off, but don't rely on this, it's always better to turn it off. The compressor has a clutch, so it spins freely.
The a/c belt won't use any power as long as the a/c isn't turned on. Even when you go WOT, the a/c automatically turns off, but don't rely on this, it's always better to turn it off. The compressor has a clutch, so it spins freely.
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Slightly off topic, but personally I think you would be better off spending the money on some LT headers and a new mid pipe. Along with a different intake manifold such as a LS6 and port your own TB. If you're an automatic then a stall ~3500rpm would be well worth it. Any of these should make a bigger difference than pulley's.
Also if you ever plan on a supercharger the pulley's will be redundant and will have to be removed.
Also if you ever plan on a supercharger the pulley's will be redundant and will have to be removed.
Originally Posted by JSmee99T/A
thanks for the input all. so what would the guys be talking about when they say they can feel the difference with the a/c is gone? just in their heads....
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I also would put the cash in other places, you will never regret an exhaust. Also if your pulling your crank pulley, depending on your mileage, go ahead and get a new crank seal, your there, pretty cheap insurance against a leak later on.
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