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LY6 boost limit ?

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Old 10-15-2012, 02:32 PM
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Default LY6 boost limit ?

will I sent Rick @ trick performance the cash to start building a turbo kit for a friend with a 2002 reg cb manual trans 1500 4x4 sierra
the truck has a stock 2008 LY6 with a 228R cam

we got the s480 turbo with a big custom FMIC

what is the LY6 boost limit , the stock CR is 9.7:1

stock piston ring gaps stock pistons stock heads

Last edited by sand man; 10-15-2012 at 03:07 PM.
Old 10-15-2012, 02:35 PM
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Are you asking about the 2002 engine or the LY6?
You didnt mention which engine is the stock 2002
Old 10-15-2012, 03:07 PM
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Originally Posted by nonnieselman
Are you asking about the 2002 engine or the LY6?
You didnt mention which engine is the stock 2002
typo corrected

i ment a stock 2008 LY6
Old 10-15-2012, 03:14 PM
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Cool just checking...

with head studs and LS9 head gaskets, 20psi with a good fuel and a spot on tune should be quite fun.
but it all depends on fuel and tune at that point.
Old 10-15-2012, 03:18 PM
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gas is 91 and if we can push 16psi on the stock rotating we would be happy

aiming for 600whp .. sounds resonable right?
Old 10-15-2012, 03:19 PM
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very easy.. i pushed mine to 15 psi this weekend and it was awesome.. (LQ4) but lean too by the end of the run
Old 10-15-2012, 03:20 PM
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15-16psi would be as far as I would push it
Old 10-15-2012, 03:22 PM
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lq4 has 9.4:1 and I suppose you run 93 gas
Old 10-15-2012, 03:27 PM
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oh just saw 91 octane..
might have to work the tune up slowly.. any plans for Methanol?
Old 10-15-2012, 03:28 PM
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Originally Posted by sand man
lq4 has 9.4:1 and I suppose you run 93 gas
Yep and Yep..
i just saw you said 91 oct.. might wanna start slowly at 10psi.


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