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Romy 11-28-2010 11:41 PM

STS rear mount boost kit spitting out oil!! HELP!!!!
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Hey guys, i was wondering if anyone has an idea about this. i recently installed the sts rear mount turbo to my 03 z and ran it with the turboxs piggy pack unit which was tuned already for 8.5psi. i haven't done a tuneup yet but i drove the car and it drove fine with no issues but its spitting out a lot of oil from the exhaust and i noticed it became a bit foamy as well.i don't know if i was running lean or rich as i do not have the gauges installed this just the turbo that is installed in the back of my car's exhaust system or is it my motor?

also there was smoke coming out of the right side of the hood and smelled pretty bad of burning oil or something similar to oil. i personally don't know if this has something to do with the oil that showed up in the exhaust as someone looked at it quickly and said its the valve cover gasket leaking and the oil is getting on the manifold.

cars internals are stock and it has 160 k on it .the kit has no boost controller and is running 8.5 psi.

help appreciated
Thanks in advance

westpak 11-29-2010 08:36 AM

well easy way to tell is to check the exhaust further up before the turbo and see if there is oil

it could be the turbo, maybe the oil pump is not working and not draining the oil

Romy 11-29-2010 08:34 PM

the oil pump seems to be working as it makes a sound when i start the car.

Romy 11-30-2010 07:52 AM

i found out that my valve cover gasket is leaking and it is causing the smoke from hood.but still curious about the oil out of exhaust. any one has any suggestions? is there any relation between the valve cover leaking and the oil from the exhaust ?


westpak 11-30-2010 08:48 AM

there shouldn't be

As I mentioned before, unbolt the exhaust before it gets to the turbo and see if there is oil already, if not then you know it is the turbo, if there is then you probably have issues with piston rings

tanabe350z 11-30-2010 02:10 PM

I wanna say the oil was mix with water due to the milky color.

The left exhaust tip comes out from the waste gate and the right tip comes out the turbo, so it's prolly the turbo. If it comes out of both tips it would be the motor.

tanabe350z 11-30-2010 02:22 PM

Was it the valve cover or head that were leaking? If your head were leaking it would cause the engine to mix fluids from the water jackets to the piston cylinder.

Romy 11-30-2010 09:06 PM

so far the shop has told me its only the valve cover gasket.when i asked about the milky greasy stuff they said as it was a used kit ,it was sitting for a while and its just pushing out the this possible?

idrm350 11-30-2010 10:22 PM

There shouldn't be any "junk" anywhere in the kit. Just some carbon buildup. it sounds to me like your turbo has a bad seal and is leaking oil. BUT, that doesn't explain why it's milky so I'm not sure. I'd do what Westpak suggested and look at the exhaust upstream of the turbo.

NoZYet 12-01-2010 12:04 AM

Are the turbos cooled with oil or coolant? If there's coolant running through them I'd guess the seals on the turbine are shot and that oil/coolant slurry is escaping.


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