how much boost on your l33 block

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Nov 8, 2014 | 12:47 PM

dezlfrek

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From: sonoma ca

how much boost on your l33 block

I'm at 16psi and around 650 rwhp now but I wanted to try for an 8.9x so how much boost have you made? Or how much power? L33 only please. Even tho mine is only a 4.8 +.050 but thanks.

Nov 8, 2014 | 02:30 PM

2muchboostNY

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Not mine but good info: https://ls1tech.com/forums/forced-in...s-jy-5-3l.html

Nov 8, 2014 | 03:30 PM

ZGLASS

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From: Federal Way, Wa

20+lbs mid 800s not issues pump and meth. meth issue killed it at 23lbs

Nov 8, 2014 | 05:23 PM

chiaj144

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From: Usa

Here's one with a partial block fill. Methanol for fuel too I believe.
http://www.yellowbullet.com/forum/sh...938&highlight=

Nov 8, 2014 | 11:20 PM

Forcefed86

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My alum 5.3 took 25-26lbs at 17* for 8-9 runs before I blew a HG. Keep the timing low and crank that sucker up to 25. Should be able to handle even more with the short stroke. 17* was on the high side. I'd keep it around 12* to start with over 20 on mild builds. Then see how it acts from there...

Nov 11, 2014 | 11:37 AM

dezlfrek

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From: sonoma ca

Thanks for the replies.. seems like the blocks are the week spot but the head gasket become the problem.. I will probably get my 8.9x run at around 22 to 25psi I think and it should be OK for it.. if the gaskets don't hold I will go to 625 studs.. I run them in my truck at 70 psi lol

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