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Dutch924-racer · Joined: 23 Jul 2007 Posts: 1081 Location: The Netherlands

I discovered in PET that the >82' 931's have an extra oil breather on the cylinder head.

Will this be an usefull upgrade for a 81' 931 ?

See picture:

http://www.flickr.com/photos/9754161@N02/739693480/in/set-72157600685471748/
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937 trackday car
Series 2 engine
951S turbo and intercooler
Fast road camshaft
Forge recirculation valve + boost controller

Smoothie · Posted: Sat Aug 30, 2008 9:41 am Post subject:

That was added as part of the last of about three versions of the turbo oil drain. That line runs from the head to the top of the turbo oil drains' air/oil seperator. It's purpose was/is to control condensation, and to equalize pressure at both ends of the turbo oil drain line to improve drainage.
More on it here - http://www.924board.org/viewtopic.php?t=10536

Excellent pictures, btw.

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"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox