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Forced Induction All questions and problems regarding Superchargers, Turbos, NOS, ZEX, intercoolers, water injection, etc.

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Old 06-29-2005, 02:42 PM   #1
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Default */c pulleys

I was just wondering if it'* possible too get too small of a supercharger pulley. They range all the way from. 3.75-2.8. Is the smallest one always best or could it cause too much boost and harm the engine. The engine in my car has 97,000 miles.
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Old 06-29-2005, 02:52 PM   #2
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yes you need supporting mods to pully down, if not you will get KR, and that pulls timing and makes the car slower, with no power, and is harmful to the engine

you NEED :
CAI/FWI
180 thermo
and some exhaust mods before you even think to drop a pully,

after you do this you can run a 3.4 with out a problem
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Old 06-29-2005, 03:29 PM   #3
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Actually I believe you are able to pulley a certain amount without mods..then if you add the other areas 1993 mentioned it allows you to go further.
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Old 06-29-2005, 03:37 PM   #4
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Folks, this totally depends on what Series of engine he'* talking about.

Sleeper, can you please put your year and trim level in your signature?

Moving to Forced Induction.
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Old 06-29-2005, 03:49 PM   #5
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So if I do a Cold air intake, and 3 inch cat back exhaust could i got to a 3.0 in pulley.
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Old 06-29-2005, 05:28 PM   #6
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3" cat back isn't going to get you anything. Some of our quickest cars here are still running 2.5".

Besides, for that to gain you, you'd need rockers at least. And headers.
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Old 06-29-2005, 05:49 PM   #7
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Quote:
Originally Posted by willwren
3" cat back isn't going to get you anything. Some of our quickest cars here are still running 2.5".

Besides, for that to gain you, you'd need rockers at least. And headers.
Yes but how many have tried? I only know of one, and it laid rubber under my foot like nobodies business..
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Old 06-29-2005, 06:01 PM   #8
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And he lost a ton of low end. That was a mildly modded 95 Series 1.
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Old 07-01-2005, 07:51 AM   #9
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Don't bother running 3" unless you have serious mods. You're going to lose alot of exhaust velocity if you do, which will rob you of your low end response...and on top of that, your car will pop more than michael jackson in the billy jean video.
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Old 07-02-2005, 01:33 PM   #10
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it was suggested to me to go with a 3" pulley on my series 2 by a well known company , but that was only with the comp ni-cam, ported and polished heads and headers. im waiting on the cam and thinking about trying a set of PEMs for $250 vs.$1000
without really any mods on series2 other than cai etc you might want to stick to something like a 3.4" pulley.
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