Need to know safe boost on this motor:)

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May 30, 2011 | 02:54 AM

TC_Justin2003

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Need to know safe boost on this motor:)

Hey guys, I want to get some oponions on what u think for safe boost on this. Here Is what it Is and what I have done.

2003 silverado 5.3
1/2 ton

Mods...
Twin precision 6262'sdum
Twin tial 44mm wastegates
Texas speed 60# injectors
Texas speed push rods
918 beehive springs
115 dumlsa 212/218 comp cam
Custom stainless headers
4" exhaust
Intercooled
ARP head studs
255 Lph in tank pump
255 Inline pumpdum
Scott plug wires
2 bar MAPdum
MAF delete
Moroso high flow oil pump
dumCustom built up 4l60e
Edge performance 3000 stall converter
Detroit locker
Efi live

Please let me know what u think for safe boost plus what hp numbers I'm Lookin at. Thanks!

May 30, 2011 | 03:06 AM

Bumpers

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From: Memphrica Tn

10lbs should put you in the mid 4xx and be fine.. Its all in how good the tuner is really what you can do with it but 10 is a safe number

May 30, 2011 | 03:48 AM

TC_Justin2003

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You think it's safe to go a lil higher with a good tune? I was thinkin/told around 14 lb and 600 hp.

May 30, 2011 | 05:04 AM

stock48

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From: Colorado Springs, Co/ Central, Ca

14 should be fairly safe with a good tune. Be careful with those twins they might make a lot of power at a fairly low boost. 2003 has the weak rods so I would keep power below 700 if you want it to live. 10.50's@125mph in my truck bends those rods. The 2004 up engines with the LS2 rods are much stronger.

May 30, 2011 | 05:04 AM

MUSTANGBRKR02

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From: Maine

Depends who is tuning it. But you can push that lil 5.3 quite far. 15+ lbs you should be good.

May 30, 2011 | 11:45 AM

TC_Justin2003

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Awesome thanks!

May 30, 2011 | 12:04 PM

slowlsx

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From: Deer park

Add another fuel pump to your list. One isn't goin to do it.

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May 30, 2011 | 04:45 PM

slowlsx

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From: Deer park

Aghh! I didn't see that! Well then your all good to go! Should be a pretty sweet setup, these small 4.8/5.3's can take a beating As long A's you got plenty fuel to throw at it.

May 31, 2011 | 09:21 PM

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TC_Justin2003

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Cool thanks for the input. I was gonna post some pictures but not sure exactly how.

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Need to know safe boost on this motor:)

Need to know safe boost on this motor:)

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