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>> Who blew up their stock internally motor on boost??? Details??

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Old 08-14-2009, 09:29 AM
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Default >> Who blew up their stock internally motor on boost??? Details??

Okay guys here's what my plans are: stock 02 LS1 bone stock. I am thinking of going with a 6# supercharger kit, a catback, 30# SVO injectors, tune, and upgrading the headers later on. But of course I don't want to blow up my motor so for those that have done it and for those that have grenaded their motors please provide feedback of what went wrong and what not to do/ what to do with 6#-7# boost on a stock bottom end.
Old 08-14-2009, 10:18 AM
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https://ls1tech.com/forums/forced-in...lity-list.html
https://ls1tech.com/forums/forced-in...ast-boost.html
Old 08-14-2009, 02:19 PM
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Mine lasted 16000 miles with 7#'s boost, have 255 pump, 42# injectors, valvesprings, good tune. Raised rev limit, missed shift once racing a vette at 7000 rpm and heard something rattle for a sec then clear up. started getting major blowby, tore it down crack in piston by ringland. Toast.. So in the middle of 383 stroker, turbo, cam.
Just be careful up in high rpm's your close to danger if anything happens up there, injectors might be a little small I'd go at least 42 so theres less work on the duty cycle
Old 08-14-2009, 08:55 PM
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I broke my stocker back in 2002
too lean and too much timing. the more timing you run the more spot on the a/f has to be
Old 08-14-2009, 09:25 PM
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Procharger, 42 lbs injectors, headers, fuel pump, intake, throttle body, exhaust, 9 lbs, snow methanol, zo6 valve springs, 106k miles, the key keeps revs below 6700rpms.
Old 08-14-2009, 10:13 PM
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Originally Posted by js2fst
the key keeps revs below 6700rpms.
X2 Definately agree here.
Old 08-14-2009, 10:32 PM
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me inexperienced - bone stock motor. sts turbo way back in the day...lost #8 ringland at 5psi and spun a bearing after 10k miles of boost. Went lean. block was trashed so i cranked it up to 8psi and did a bunch of 0-60 launches. Tore the motor down and every piston had broken ringlands
Old 08-14-2009, 10:39 PM
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lmao! just blew my stock shortblock ls1 with the sts kit.... got greedy with boost..... then kaboom killed a piston i think, havent tore it down yet.

Make sure you get a good tune on that SOB! Keep the boost low! Start saving for another motor!
Old 08-23-2009, 10:09 PM
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Yeah, I will definately get the 42# to be safe. I have an auto and I will be keeping the stock cam for a while so 6700 is much higher than I would go. So from what I gather running 6-7#'s of boost and keeping the revs down, with a good tune and fuel system up to par should be relatively safe assuming nothing fails and the tune is good? seems like overrev and spinning high rpms kills a lot of these milder boosted setups which I will be avoiding.
Old 08-23-2009, 10:18 PM
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Thought I broke it after seeing a spike to 22 psi (very quick), tore it down and it still lives! Did discover that I had some piston to valve contact though.
Old 08-24-2009, 02:28 AM
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blew my stocker up on 7 psi with me having no idea how to tune and being very very dumb
Old 08-24-2009, 07:22 AM
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took me 5 months and 2 passes at over 17#.
Old 08-24-2009, 07:34 AM
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8lbs and detonation cracked the water jacket in two cylinders and bent a rod and broke a piston. wasn't even really getting on it that hard. iat's were high though no intercooler.
Old 08-24-2009, 11:57 AM
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No knock retard?
Old 08-24-2009, 01:56 PM
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What does everyone feel the limits are as far as Boost, Timing *, AFR, RPMs, Etc... What would keep a motor together but still perform nicely for a while?...
Old 08-24-2009, 02:14 PM
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i wouldnt raise the rev limit on a stock bottom end. dosnt make any sence to shorten the life for a little more power, not worth it in my opinion
Old 08-24-2009, 05:08 PM
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Default stock and boosted

50k on stock engine, 9# on vortec aftercooled, 473 RWHP, getting ready to
put in a cam and heads.



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