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My over boost vid - stock 5.3 @ 15psi

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Old Dec 5, 2013 | 06:34 PM
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Default My over boost vid - stock 5.3 @ 15psi

Well after my new super high flowing exhaust and super high flowing intake along with having an open dump on my wastegate, it keeps pulling, and pulling, and pulling. Ha ha.

Trick Rick hooked me up w a 46mm percision wg. Once it arrives, I'll install it and get this beast back under control before she pops.


70mm Z71 Turbo 5.3 Silverado over boost - YouTube
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Old Dec 5, 2013 | 06:37 PM
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What boost are you shooting for?
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Old Dec 5, 2013 | 06:44 PM
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10-11psi is about what I see is the limit for a Stock motor on 93oct.
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Old Dec 5, 2013 | 08:12 PM
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Why did you let out of it??
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Old Dec 5, 2013 | 08:14 PM
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Originally Posted by Choda
10-11psi is about what I see is the limit for a Stock motor on 93oct.
Any reason in particular?
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Old Dec 5, 2013 | 09:26 PM
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Originally Posted by shifty89
Any reason in particular?
Yeah the stock cam, springs, dod crap... All things that need upgrading before more boost.
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Old Dec 5, 2013 | 09:28 PM
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Meh. 15psi wont hurt a 5.3. Heard of stock 4.8's taking over 20psi and holding just fine. Next time I want to hear that you put a dent in the floorboard trying to see if it would go past 15!! LoL
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Old Dec 5, 2013 | 09:30 PM
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Originally Posted by camd01silv
Meh. 15psi wont hurt a 5.3. Heard of stock 4.8's taking over 20psi and holding just fine. Next time I want to hear that you put a dent in the floorboard trying to see if it would go past 15!! LoL
How much boost are you running?
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Old Dec 5, 2013 | 09:31 PM
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Well my DD sees over 20....
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Old Dec 5, 2013 | 09:43 PM
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...but it's a diesel and I haven't tuned it yet. Jeez can't a guy make a joke??
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