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Old 04-17-2012   #19
Tachyon
 
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Join Date: Jun 2004
Location: Prior Lake
Drives: Icarus
Posts: 1,375
Re: Crankcase ventilation

Quote:
Originally Posted by s1ngletracker View Post
If you want suction in your crankcase, do a slash cut in your exhaust, with a check valve to keep exhaust surges from pushing back into your crankcase. Slash cuts will actually increase in vacuum as boost/load increases
A couple years ago I was interested in this idea. It appeared to gain popularity the Civic and Supra crowd a while back and did net some gains on the dyno. I think I might finally give this a try since my DSM is my experimental tech donkey.

I am thinking 2x -8 fittings and lines within an inline baffle box system, then 2 beefy check valves into opposing slash cut tubes. IIRC, the main issue people were having at the time were the valves getting clogged with coked oil. I am thinking the baffle box could prevent this if done correctly.

Paul, do you have any experience with this in a quasi-race environment?
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