Modified T7 Crankcase Vent to Atmosphere?? - Saab Performance Bulletin Board - Saabnet.com
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Modified T7 Crankcase Vent to Atmosphere??
Posted by AeroTim [Email] (more from AeroTim) on Thu, 19 Aug 2004 07:02:01
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Getting ready to do the PCV mod boring out the oil catch but then instead of running vent back to intake, running down away from the cabin vent intakes and venting to atmosphere. Research has turned up two things to consider...
1. Should be done...tuned car with extra crankcase pressure especially. Fumes in intake lower octane possibly causing knock
2. Should not be done...venting to intake helps maintain vaccuum in crankcase (I don't think this will apply with the extra boost I am running).
At this point I have basically decided to do it but is there anything I am not considering? Yes I have thought about the ozone layer :)
Thanks!
posted by 152.163.25...
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