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Old 2010-01-18, 10:58 AM   #8
sperry
The Doink
 
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Real Name: Scott
Join Date: Nov 2002
Location: Portland, OR
Posts: 20,335
 
Car: '09 OBXT, '02 WRX, '96 Miata
Class: PDX/TT-6
 
The way out is through
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Quote:
Originally Posted by knucklesplitter View Post
I assume one of the lines, prolly the middle one, goes to the turbo inlet. I assume the head lines get tee'd together. This device is supposed to let the oil drop out and flow down the filler tube.
Now that I look at the prova AOS again, I see what you mean. I haven't had a TMIC in a long while, I forgot those hard lines along the intercooler are from *both* heads.

So this setup is basically the top type of catch can in this picture:

http://www.seccs.org/gallery/Car%20P...catch-cans.jpg

...but with a drain-back to the heads.

The problem is that there is likely going to be the possibility of crank pressure blowing out the heads (and thus pumping oil out the heads) because the crank breather is the same size as the valve breathers. I don't know how good that separator is... if it can't handle a heavy stream of oil, you may be blowing oil right into the intake. Probably not going to be an issue on a street car, but on a race car that can sustain 1+ lateral G's, I'd be concerned, especially if I had WRX heads with the single breathers.
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