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Old Sep 7, 2010 | 09:45 PM
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1998TA__1991RS's Avatar
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Default Max boost
what do you guys think the limit is on a stock ls1 aluminum block and a stock crank? at what point would it start pushing water with arp head studs and MLS gaskets?
Old Sep 7, 2010 | 11:29 PM
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That's a loaded question, it's not really the amount of boost but cyclinder pressure, do a search there is some threads that have personal experience with this issue.
Old Sep 8, 2010 | 12:29 PM
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what about this, could i push it over 25lbs if i have zero knock and be able to keep the heads down for a couple of passes?
Old Sep 8, 2010 | 01:32 PM
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Well I don't think u will make it through the burn out. 18psi with a ton of meth and a little race fuel added u might make a pass
Old Sep 8, 2010 | 01:33 PM
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Originally Posted by 1998TA__1991RS
what about this, could i push it over 25lbs if i have zero knock and be able to keep the heads down for a couple of passes?
I wouldnt even think of doing that, but there truly is only one way to find out.. Try it and let us know how that works out for ya
Old Sep 8, 2010 | 01:50 PM
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Originally Posted by novaflash2002
Well I don't think u will make it through the burn out. 18psi with a ton of meth and a little race fuel added u might make a pass
the car has been making 18 for the past 20 passes on pump gas with no meth and no knock, im looking to turn it up a little
Old Sep 8, 2010 | 01:53 PM
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the motor has forged rods and pistons and 317's with studs. im just wondering what the block will hold, i know the stock cranks can be good to around 1000hp

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Old Sep 8, 2010 | 02:19 PM
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Just turn it up little by little. Pushing a little water isn't the end of the world. Keeping the RPMs down will help stretch it out.
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Old Sep 8, 2010 | 02:35 PM
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Originally Posted by 98Z28CobraKiller
Just turn it up little by little. Pushing a little water isn't the end of the world. Keeping the RPMs down will help stretch it out.
thats what i had planned on, im shifting the car around 6400-6500, anything over that it just feels dead with the stock cam in it
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