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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Oil leaking from stock dv's?



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      09-22-2010, 07:47 PM   #1
Jonny550
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Oil leaking from stock dv's?

So i have been having some bad track times and awfully low trap speeds at the track lately, I tried every remedy to no avail until i came across this when i was detailing the car. It seems the the front Dv head has some oily soot on it and the farther dv head is totally clean.

It kinda makes me wonder if maybe thats the problem and i might be leaking boost through it. A couple people told me that even a small boost leak can cost you alot. Iam holding 14psi on map 7 but the car just does not pull right.




Iall get some pics up in the morning but i was just wondering if this is a usual thing to happen?.
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      09-22-2010, 07:49 PM   #2
jonerik26
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do you have an occ?
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      09-22-2010, 07:56 PM   #3
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Quote:
Originally Posted by jack1526 View Post
do you have an occ?
Nope, And now iam thinking it this might be a good reason not to have one because it obvious that if oil could leak out than iam more than sure pressurized air can.



Not to say i dont need an OCC.
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      09-22-2010, 09:22 PM   #4
Jonny550
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ttt
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      09-22-2010, 10:23 PM   #5
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Bump when you have pics...
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      09-22-2010, 11:32 PM   #6
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There is always going to be oil residue on your charge pipes. It is normal for turbo cars. Remove your IC and check the bottom of it. I doubt that is what causing your low trap speeds.
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      09-22-2010, 11:48 PM   #7
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Quote:
Originally Posted by Bimmer This View Post
There is always going to be oil residue on your charge pipes. It is normal for turbo cars. Remove your IC and check the bottom of it. I doubt that is what causing your low trap speeds.
on the exterior of the chargepipe though?
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      09-23-2010, 12:21 AM   #8
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pressure test your induction system.........find out for sure if and where u have leaks.
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