TwinTurbo.NET: Nissan 300ZX forum - The blowby will be the only aspect that will throw off the
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Subject The blowby will be the only aspect that will throw off the
     
Posted by Ash's Z on June 11, 2014 at 5:23 PM
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In Reply To Closed posted by BlackholeZ on June 11, 2014 at 04:36 PM
     
Message metering. Since the OEM system is designed basically to operate in boost just like you have it setup then I wouldn't suspect it is going to be any issue, however, it is dependent on how tight or loose your engine is.

In all honesty, the biggest problem with sucking in crankcase gases into the turbo inlet is the oil mist. Oil will coat down everything, including the intercooler internals, acting as a thermal barrier and lessening their thermal efficiency. Furthermore, it coats the throttlebodies and even worse, oil lowers the octane of fuel quite significantly. You really want to keep the crankcase gases out of the combustion cycle at the very most and since that's just about the final destination of the oil, you're looking at disconnecting the crankcase from the induction system altogether. Get a catch can and run its output to atmospheric. This way you can eliminate the oil residue/dust buildup and still keep oil out of the induction system.

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