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Turbo is killing my 5.3

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Old 02-09-2009, 08:07 PM
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Originally Posted by parish8
boost isn't a great way to measure the limits. i feel safe at 600rwhp. i wouldn't go any higher than that for something i want to last awhile. in our nova project we will be turning up the 6.0 till it blows. wouldn't suprize me to see 800+rwhp.
Where have you been with your timing in the fairmont?
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Old 02-09-2009, 08:08 PM
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WJ, you see my scattered, covered, chunked, smothered 5.3L pics????
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Old 02-09-2009, 08:30 PM
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all stock 5.3. Its just getting a ton of blow by im sure its from either the ring lands or rings burning up. Im just gonna stuff a stock lq4 in there with my ls6 cam. Im hoping to make the same power with less boost and be alittle more reliable.

Rick I may start pulling the motor this weekend, so I'll be ready for it next weekend.
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Old 02-09-2009, 08:33 PM
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I was going to do the same thing, and came across this deal.... should work out really nice... and youre right, the same power on less boost does feel nice
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Old 02-09-2009, 08:33 PM
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funny thing is it seems to still be running fine, just puking oil out the dip stick tube and getting everywhere.
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Old 02-09-2009, 08:39 PM
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same here.... mine ran fine, even with 7.5 pistons LOL
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Old 02-10-2009, 08:11 AM
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Originally Posted by WJ MARK
its got almost 104k on it. been boosted since 67k. So I almost got 40k hard boosted and towing miles on it. Anyone know how much boost you can run on a 6.0 with 42 lb. injectors????, I'll probably uses meth also but want to see what i can get away with without the meth for fueling.
On my stock LQ9 with 42s, stock fuel pump and meth I could get 10psi all day long. At 12psi I'd run out of fuel pump.
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Old 02-10-2009, 08:13 AM
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Originally Posted by parish8
stock gaskets, head studs, pistons, will all hold over 600rwhp for a long time as long as you dont let it knock. a few have reported over 800rwhp
I agree completely with this.
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Old 02-10-2009, 07:10 PM
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Originally Posted by parish8
i would suspect knock due to a tuning or fuel issue is what took out the motor. after what we put the fairmont thru i am starting to think you can not hurt or wear out these motors other then if you let them knock
This might be a stupid question,but you guys don't disable your knock sensors do you?

I'm just getting started with this whole LS1 thing,but coming from Turbo Buicks we live by the factory knock sensors.

Anyone run a Knock gauge/alarm inside the cab to let you know if you're knocking before the smokescreen starts?

Sorry if this is a little hijack...
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Old 02-10-2009, 07:14 PM
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i have always watched and trusted my knock sensors.

anytime i have hurt a motor or poped a head gasket i can go back and look at the log and there is always serious knock showing.
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