how long would this last?

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Apr 13, 2009 | 02:02 AM

Freaked Ls3

Thread Starter

Burning Brakes

Joined: Mar 2009

Posts: 753

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From: USA

how long would this last?

100% stock car besides A&A kit and ARH headers pushing 8 psi and has 600rwhp but now wanting to do meth and up the boost to 12psi, how long do you think this will last?

Apr 13, 2009 | 02:20 AM

BornSUPERCHARGED

Melting Slicks

Joined: Dec 2008

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I'm not sure how long it would last, but have you considered a boost controller and keeping your boost lower until you need it, then increasing it at that point in time? I mean, driving around with your boost at 12psi might not be the best idea on a stock bottom end engine. I know Ed will chime in and he is 10000x more knowledgeable than I am (I don't know ****).

Or, have you considered a 175 shot?

Last edited by BornSUPERCHARGED; Apr 13, 2009 at 02:23 AM.

Apr 13, 2009 | 02:45 AM

c6 batmobile

Safety Car

Joined: Jan 2008

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From: Middle of No where AK

I would guess not a real long time if you drive it hard. 12 psi is a lot its even more on a stock bottom end.

Apr 13, 2009 | 01:43 PM

Freaked Ls3

Thread Starter

Burning Brakes

Joined: Mar 2009

Posts: 753

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From: USA

im going to go up to 10psi and meth it with a cam. if it blows im going to just do a forge swap.

Apr 13, 2009 | 02:18 PM

chsmith112

Drifting

Joined: May 2008

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From: LA Area CA

It should be any more strain if you drive it normal. But if you push it constantly then yeah it won't last nearly as long. Cause you don't see boost until like 2500 rpm anyway right?

Apr 13, 2009 | 02:32 PM

Freaked Ls3

Thread Starter

Burning Brakes

Joined: Mar 2009

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From: USA

im at full boost at about 3800-4000 rpm. but i start boosting at 2300rpm.

Apr 13, 2009 | 10:50 PM

PowerLabs

Le Mans Master

Joined: Oct 2007

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From: Greater Detroit Metro MI, when I'm not travelling.

Quote:

Originally Posted by Freaked Ls3

im at full boost at about 3800-4000 rpm. but i start boosting at 2300rpm.

Erm, no you are not... This isn't a turbo; your Centrifugal blower only reaches maximum boost the second your engine hits the rev limiter

if you make 10PSI at 6500rpm you would be lucky to see 5 by 4000...

Apr 13, 2009 | 11:06 PM

3 Z06ZR1

Team Owner

Joined: Mar 2005

Posts: 20,933

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From: salem OR

Quote:

Originally Posted by PowerLabs

Erm, no you are not... This isn't a turbo; your Centrifugal blower only reaches maximum boost the second your engine hits the rev limiter

if you make 10PSI at 6500rpm you would be lucky to see 5 by 4000...

He's right, but when your @4000 and boost is increasing itself as quickly as you can say "Ding" Plus your boosting when the BOV closes but even with it open it still is better than any N/A intake. As I have more rwtq at 2500 or even less than it did at any RPM stock!
So with the 390's I hit full boost quickly and with quick smooth shifts,
These Centri's are deadly fast! They push alot of air!