Figure i'll post my project since i used your supercharger. - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-06-2007, 05:51 PM   #21
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Cool, got any other pictures you could post?

Ed
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Old 04-06-2007, 06:59 PM   #22
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Not right now, i still have alot of work to do.
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Old 04-07-2007, 01:32 AM   #23
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What is your chain of devices?

Is it:

FILTER > MAF > TB > */C > Stock Intake

? ... or do you have the TB AFTER the */C?
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Old 04-07-2007, 11:34 AM   #24
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Quote:
Originally Posted by caminated2k
What is your chain of devices?

Is it:

FILTER > MAF > TB > */C > Stock Intake

? ... or do you have the TB AFTER the */C?
Filter > AFM/MAF > */C > Charge Pipes > BOV (recirculating for proper idle) > TB
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Old 04-07-2007, 01:30 PM   #25
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The way your boost is acting doesn't make sense to me.
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Old 04-07-2007, 02:44 PM   #26
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Quote:
Originally Posted by J Wikoff
The way your boost is acting doesn't make sense to me.
Makes a little sense to me.

I need a smaller pulley for one thing.
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Old 04-07-2007, 02:49 PM   #27
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I don't understand why you lose such a high precentage of boost when it warms up.
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Old 04-07-2007, 02:53 PM   #28
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Quote:
Originally Posted by J Wikoff
I don't understand why you lose such a high precentage of boost when it warms up.
It'* only 1-2psi.

I think it has something to do with cold start valving, i'm not totally sure. The only thing i know of that works differently when it'* cold is the idle control valve.

I'll figure it out more when i get a smaller pulley, this one isn't cutting it.
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Old 04-07-2007, 03:11 PM   #29
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2 out of 5 is 40%. That'* a lot.
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Old 04-07-2007, 03:12 PM   #30
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So the wastegate on the SC is always closed and you control boost with a BOV.

My earlier math was based solely on engine displacement ratio, your blower speed at 5k, and stock max Series I boost. It looked like this:

x psi = 10 * (3.8/2.5) * (4.75/7*5000/11000)

...I think, but now that I run it again, I get 4.69 psi. Guess I screwed it up earlier.
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