turbo lsj help
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turbo lsj help
Guys, i`ve installed a turbo on my LSJ.
The intake manifold, intercooler piping, exhaust manifold are all custom. I have the boost gauge, brake booster, bov, and 2 sensors plumbed into the intake manifold.
I have a husky oil catch can plumbed into the pcv from the back of the valve cover and the front of the intake flange, which then runs to the intake side of the turbo.
My car is gulping oil and falling on its face as soon as I get into boost. Its like its misfiring from oil on the plugs or something.
I can drive about 100km and go through half a litre of oil. The car has been tuned (on a humid day) and was running great after the tune, but now its just dead!
Any thoughts, any suggestions on what to look for? There is definately oil in my intake charge piping. I installed a 5/8" drain for oil going into the oil pan, theres no orifice that is under 5/8" in diameter for draining the oil. There is a oil restrictor on the inlet side of the turbo plumbed from one of hte ports on the back of the block.
3" catted downpipe and 3 " hahn exhaust.
any help would be awesome, I have no idea whats going on. I think im at the point of doing a compression test
The intake manifold, intercooler piping, exhaust manifold are all custom. I have the boost gauge, brake booster, bov, and 2 sensors plumbed into the intake manifold.
I have a husky oil catch can plumbed into the pcv from the back of the valve cover and the front of the intake flange, which then runs to the intake side of the turbo.
My car is gulping oil and falling on its face as soon as I get into boost. Its like its misfiring from oil on the plugs or something.
I can drive about 100km and go through half a litre of oil. The car has been tuned (on a humid day) and was running great after the tune, but now its just dead!
Any thoughts, any suggestions on what to look for? There is definately oil in my intake charge piping. I installed a 5/8" drain for oil going into the oil pan, theres no orifice that is under 5/8" in diameter for draining the oil. There is a oil restrictor on the inlet side of the turbo plumbed from one of hte ports on the back of the block.
3" catted downpipe and 3 " hahn exhaust.
any help would be awesome, I have no idea whats going on. I think im at the point of doing a compression test
Unless your engine was hurt from the start or you boosted waaayyy to much, or the tune was bad...I find it hard to think you blew any of the motor. My guess is bad seals in the turbo if you have a lot of oil in the intake.
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From: Ontario Canada
agreed.
I dont think I blew the motor, but I had the turbo (garret gt3071r) at a guy that rebuilds them and he re-assured me that there are no seals in the turbo. its a bushing thats similar to weather stripping on a door way, if oil wants to get past the seal it will. So instead of rebuilding he suggested making the drain pipe bigger, which I did
I dont think I blew the motor, but I had the turbo (garret gt3071r) at a guy that rebuilds them and he re-assured me that there are no seals in the turbo. its a bushing thats similar to weather stripping on a door way, if oil wants to get past the seal it will. So instead of rebuilding he suggested making the drain pipe bigger, which I did
hey man maybe some of the guys on our thread can give you some more input on your problem
https://www.cobaltss.net/forums/2-0l...6/index13.html
post up there maybe we can help figure out what up
https://www.cobaltss.net/forums/2-0l...6/index13.html
post up there maybe we can help figure out what up
how much boost were you running? you said the engine is dead, what does this mean? does the engine still run? if the engine no longer runs i would say do a compression test. i had a similar problem with a 92 talon turbo. oil would spew out the tail pipe but the engine ran great. the turbo seals were bad. rebuilt the turbo and all was well. oil pressure to the turbo is crucial. i never use a cylinder head plug for oil supply as the oil pressure at the head is always lower than the oil pressure at the bottom end. combine this lower oil pressure at the head with a restrictor you put on the turbo it may prematurely wear out the turbo and its seals causing oil to just dump past the turbo.
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