Should I bump it up to 10psi? (stock 5.3)

TXjeepTJ · 2011-10-07 14:57:32

No pot stirring for you till ya get your ass to the track!!!!!!phump It beats corvettes.. Thus I am happy. I am lucky to go 12.5's :devil:

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Oct 8, 2011 | 02:51 PM

#21

Mangled03gmc

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From: In a van DOWN BY THE RIVER

Quote:

Originally Posted by TIM Z

No pot stirring for you till ya get your *** to the track!!!!!!

It beats corvettes.. Thus I am happy. I am lucky to go 12.5's

Oct 8, 2011 | 03:12 PM

#22

black4.8

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From: OH

Quote:

Originally Posted by TXjeepTJ

hmmmmmm I think I'm going to do it, what are my walbro 255 and 60lb injectors good up to? (I don't remember, I'm guessing 600hp?)

my 255 starts losing pressure over 500rwhp. you should be close at 12#, so keep an eye on it.

Oct 8, 2011 | 03:14 PM

#23

AKlowriderZ71

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From: Wyoming

A340 pump. Get one & sell your Walbro. Also get a Racetronix hotwire kit.

Oct 10, 2011 | 01:29 AM

#24

4.8whipple

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From: Mtn View Arkansas

pay to play is right. you can look pix on my last thread and see what happens at around 10#s when the A/F isnt right. R.I.P 4.8

my stock fuel pump couldnt keep up so its time for a cammed 4.8 with a walbro

Oct 10, 2011 | 12:13 PM

#25

pewterliftedz

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From: Houston

if your going to go up in boost the you are definitely going to need allen tune it in person.

Oct 11, 2011 | 04:44 AM

#26

slowec

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From: Brunswick, Ga

I don"t care who tunes it, if its FI, get a A/F gauge in the truck and watch it daily. then you'll KNOW befoe it BLOW !!! parts fail, poop happens.

Oct 11, 2011 | 03:35 PM

#27

TXjeepTJ

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From: Houston

Quote:

Originally Posted by pewterliftedz

if your going to go up in boost the you are definitely going to need allen tune it in person.

definitely, I would get a boost controller and a meth injection kit- then drive to Nelson's and adjust to the boost and turn on the meth kit to have everything working w/ an in person tune

Last edited by TXjeepTJ; Oct 11, 2011 at 08:55 PM.

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