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      03-24-2023, 03:35 AM   #19
Watsey
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Drives: F31 330D sDrive M Sport
Join Date: Jun 2015
Location: On sabbatical.

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Quote:
Originally Posted by eugene89us View Post
And another warning to others - revert these catch cans, especially compact ones. They do very little to help with oil catching, while they risk a lot. Good luck!
I completely agree with the above.

The turbo is no longer consuming any oil - it seems conclusive that the catch can was the cause of the problem.

The engine is running a lot smoother as well. There was a real rough spot at around 3K rpm, and that’s gone now.

Crankcase pressure, as a result of restricted airflow through the catch can (especially those that have an internal filter), can cause significant problems and shortened lifespan for turbos. Now I understand that, I’d never install one again.
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Current : F31 330sD, remapped, Ohlins Road & Track, Millway camber plates, Quaife LSD, Stoptech brakes + Pagid RSL1 pads all round, Weichers front strut brace, Eibach front & rear anti-roll bars, Michelin MP4S.
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