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Old 09-08-2009, 02:32 PM   #1
slowlsx
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Default How much boos/power have you made with ur 5.3?

im going with front mount turbo set up on my 5.3. just wanted to see if you anyone has any numbers with a turbo on their 5.3 such as how much boost have they ran or how much power evan better if they got any time slips for their setup. i plan to put everything back to stock and put an ls6 cam.not quiet sure on the gear yet 323-373's??

Post up!!!
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Old 09-08-2009, 03:22 PM   #2
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Steve's truck that I tuned is the best so far on our chassis dyno for a stock long block 5.3l.

With a LS6 cam, dual springs, one piece push rods, custom front mount single with a 468 on it.

Through the 35" tires and 20" wheels. 4l80e, 14 bolt rear.

19psi......681 rwhp.

Video here
http://videos.streetfire.net/video/S...-on_644102.htm
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Old 09-08-2009, 05:43 PM   #3
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13lbs boost, stock bottom 5.3L w/ ls6 cam and springs, 4l80e, 3.73's, 20"s with fuel issues running lean (12.7) afr on top i made 500rwhp and 512rwtq...
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Old 09-08-2009, 05:58 PM   #4
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if I can get on the dyno this weekend I'll let you know
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Old 09-08-2009, 06:24 PM   #5
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Wow I feel like Im doing something wrong.... Looks like turbo is where the big #'s are.
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Old 09-08-2009, 06:29 PM   #6
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Just a little ole MP112 and a GT2-3 cam with 8 psi made 504 RWHP......
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Old 09-08-2009, 06:33 PM   #7
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stock 5.3 block and heads? What was the temp and elevation? Could a stall converter hold back the #'s?
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Old 09-08-2009, 08:44 PM   #8
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Was kinda wondering myself too. I wanna up it to 15# but just was curious.


Hellbents10: Was there heads studs involved to hold 19#? How much timing were you running on 19#?
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Old 09-08-2009, 08:46 PM   #9
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Quote:
Originally Posted by 03tahoe22 View Post
stock 5.3 block and heads? What was the temp and elevation? Could a stall converter hold back the #'s?
Stock other than the cam.....Sea Level 75*
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Old 09-08-2009, 09:30 PM   #10
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Quote:
Originally Posted by BlownChevy View Post
Just a little ole MP112 and a GT2-3 cam with 8 psi made 504 RWHP......
Wow! That gives me hope
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