LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Exhaust crankcase evac on n/a and nitrous cars?

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Old 01-02-2012, 09:53 PM
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Question Exhaust crankcase evac on n/a and nitrous cars?

Ok I read alot about this subject on boosted applications, not so much on n/a or Nitrous setups. So my question is I have a 383 lt4 on Nitrous and wanna run a crankcase evacuation system. I have pacesetter longtubes and 3"of xpipe dumped. So to put the fittings in I have to go farther back because the 02 sensors and wideband 6" past them. Can I run the fittings just after the first 45 bends in each side? That's like 1.5 ft past the collectors.
Old 01-03-2012, 03:03 PM
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Remember that the further you move them back, the exhaust will have a lower velocity and will produce less vacuum for pulling the vapors out.
Old 01-03-2012, 04:49 PM
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keep in mind this is with a 20* bend, pressure is scaled by color
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Old 01-03-2012, 04:50 PM
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.1inch hole, 3.5inch pipe stepped from ~2.5

venting to atmosphere


after the bend is something you don't want really. rather just before it or better yet shortly after the o2's would be ideal..
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Last edited by lt1slowz28; 01-03-2012 at 04:58 PM.



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