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My LS go BOOM?

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Old 06-29-2007, 01:33 AM
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Default My LS go BOOM?

before my story, this is my set up:

b18b stock internals (40k)
t3/t4 on 7lbs
p06 on chrome
walbro 255/ RC 440
dyno 216hp 177tq

I was on the highway tonight when an all motor hatch hits me up so i go. to my surprise the hatch hung in there. i walked away at about 100mph then got about 3 car lengths and stayed there till about 140mph then i decide to call it quits. i pull into Neutral and i notice the RPM drops to 0 and the car is off. i slow to about 60 when i threw it back into 5th to see if the car would start back up but no luck. pulled over and checked under the hood but every thing seemed normal. So i try to crank it up. the car turned on, RPM when to about 1800 then shut off. i try again and cranked for a good 15-20 sec while pumping the throttle and the car starts so i keep the rev up and dropped the hood and drove 8miles home at 65mph. the car didn't run "normal" but i picked up speed pretty easy. the car does sound totally different now. i would say its slightly deeper then normal. also sound like if my timing was off or something. not to much vibration but it sounds off.

all that i have done so far is visual inspection. all i can find so is a lose wastegate. i then let the motor idle while pulling each ignition cable. each time i pulled a cable, the engine would bog a good amount. 1,2,and 4 were all identical when i pull #3 there was only a very slight difference in idle. its almost 2:30am right now so I'm calling it a night and check on my baby first thing in the morning. Guess i'm open to anything right now. wish me luck H-T
Old 06-29-2007, 05:23 AM
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Default Re: My LS go BOOM? (supabang)

anyone im wondering too im new at this honda turbo stuff. just incase GFD it happends to me
Old 06-29-2007, 05:50 AM
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Default Re: My LS go BOOM? (NightStalker)

do what everyone does when **** like this happens on a stock block, leak down or comp test. seems to me like ur motor is done, probably blew the ring lands
Old 06-29-2007, 06:28 AM
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Default Re: My LS go BOOM? (supabang)

you pumped the throttle.....lmfao you have a fuel injected car homie not carburated
Old 06-29-2007, 07:10 AM
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Default Re: My LS go BOOM? (supabang)

check your oil and see about a possible blown head gasket...if not, as said earlier, check compression.... sorry to hear that man..
Old 06-29-2007, 07:17 AM
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Default Re: My LS go BOOM? (carnot)

compression and leak down test will give you an idea of how bad things are... my money is on a cracked ring landing and/ or chewed up piston in #3 cyl.
Old 06-29-2007, 07:22 AM
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Default Re: My LS go BOOM? (supabang)

check for a blown intercooler coupling also
Old 06-29-2007, 11:23 AM
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Default Re: My LS go BOOM? (95DxSi-R2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95DxSi-R2 &raquo;</TD></TR><TR><TD CLASS="quote">check for a blown intercooler coupling also</TD></TR></TABLE>

he never said he had a problem making boost. he said it runs rough. def not a coupling.
Old 06-29-2007, 11:28 AM
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Default

Sounds like a ringland in #3 check the spark plug for oil or if your lucky it had a partical go through and smash the plug or something simple.
Old 06-29-2007, 05:59 PM
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Default

did a leak down today.

cylinder #1 complete gone. held 0%
cylinder #3 was in red zone at 60%
cylinder #2 & #4 were perfect.

I'm still not sure what it is. Sounded like it was leaking from the exhaust side. i had a little blow by coming out my valve cover vent also. My plugs were ugly too but still going. I'm leaning towards the ring land too since i was in boost on the highway and didn't over rev so the valves are probably fine. what do you guys think? how should i deal with this. i got this motor used from Soshin with a 6month warranty. Should i just pull the motor and send it back, maybe they'll be nice a warranty me? assuming they don't no its boosted
Old 06-29-2007, 06:09 PM
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nice name what did you expect
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