I purchased a Intake Plenum and was installing it yesterday. When I removed the driver's side hose there was small amount of engine oil in the hose/tube and factory plenum. The pass side was dry. Any Ideas??

 

i believe this is normal..

 

Yep, normal on a pressurized intake system like a turbo. This is why alot of big boost cars run an oil catch can on the PVC system. I had this with both my VW and Audi 1.8T turbo motors. Expect it to be the same for the Porsche Turbo although I have not modified it yet to find out.

If is it not a turbo... not sure it would be normal. It might mean the PVC valve is faulty.

David

 

Ditto in the turbocharged Subaru world. Normal w/o a good catch can.

 

The car is a 06 Turbo S. It is strange that it is one side and not the other. I know from super/turbo mods that the vapor from the heads gets sucked into the intakes. This requires the catch can. Does anyone know if it is just the drivers side that gets the oil vapor?

 

Now the engine is showing a max boost of .4bar. Will not go above this. I think that the turbo on that side must be blown. Any Ideas?

 

i also have oil on the drivers side of my o4 turbo. I had over 1 cup of oil.

 

Yup, I had oil in Driver side hose when replacing DV's. Normal.

 

1 cup too?

 

No, 1 cup seems like a bit much, perhaps less than 1/4 cup if that for me. That could still be normal though. Did you ask your dealer service advisor ?

 

Scheduled an appointment at the dealer and a few hours later she is hitting full boost again. I guess that the oil is normal for the most part (or a common problem). I still don't know what caused the half boost.

 

I can tell you that the oil residue is normal do to emissions dumping oil vapors back into the intake to be recycled. If you have oil pooling in the intake pipe that connects to the compressor housing of the turbo, then it is likely you have a blown turbo seal. As for the half boost, did they say they replaced anything or did it just start working again at full boost? I initially was thinking you had a boost leak via a crack in an IC pipe or a vacuum leak somewhere.

Trev

 

My CTT when stock never ran as well as I anticipated but I attributed it to worn plugs and coils at nearly 60k miles. I had those replaced at the same time as having EVO tune, DVs and intakes as well as Sharkwerk's cat bypass and RSS plenum. When I picked up the car, my mechanic told me there was a lot of oil on the driver's side charge pipe right by the compressor leading him to believe the turbo is blown. He said the passenger side was dry. I took the car for a test drive, and on part throttle it drives pretty well though still not as responsive as I would have hoped; however, on WOT it is a DOG and just really bogs down.

Ironically, I drove the car quite a bit this weekend, and when the car was still a bit cold (oil temps at "10 pm") I gave the car full throttle in 2nd gear after rounding a turn and the car pulled cleanly and hard, but all other situations it has been just bad on WOT.

What do we think the chances are of my having a blown turbo as opposed to something more simple like a boost leak? I called Suncoast and was quoted $844.67 for a replacement turbocharger (which honestly isn't as bad as I thought it might be); however, it seems that the motor might have to be dropped to change the turbocharger which I imagine will be pricey on the labor (anyone know the hours?).

 

It is typical but I did have my dealer replace the seal under CPO.

 

How bad was your leak when replaced? Was it affecting your power as I described above? Did they really just replace the seal or the whole turbocharger? When I called Suncoast, they said Porsche doesn't sell rebuild kits for the turbochargers.