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1. [TR] Negative Pressure in Crankcase (score: 1): Author: N197TR4@cs.com; Date: Mon, 10 Apr 2006 07:52:48 EDT; Sure, pulling negative pressure in the crankcase will help the oil stay ... that's no proof the seal is good or bad. Pry tell, how do you pull a vacuum on the crankcase with no manifold vacuum ? Or d; /html/triumphs/2006-04/msg00219.html (6,885 bytes)
2. Re: [TR] Negative Pressure in Crankcase (score: 1): Author: Hoyt <hoyt@cavtel.net>; Date: Mon, 10 Apr 2006 09:30:22 -0400; Negative crankcase pressure is used in high horsepower engines to help, I believe, reduce windage HP losses. A separate vacuum pump is used. At 500+ HP, I suspect that the energy used to drive the pu; /html/triumphs/2006-04/msg00221.html (7,000 bytes)
3. RE: [TR] Negative Pressure in Crankcase (score: 1): Author: "Randall" <tr3driver@comcast.net>; Date: Mon, 10 Apr 2006 13:32:28 -0700; Ah, so if ignorance is bliss, tis folly to be wise ? I'd love to hear more about it. I assume this is some sort of venturi system ... aren't you worried it will increase backpressure ? Unfortunately; /html/triumphs/2006-04/msg00231.html (7,556 bytes)
4. Re: [TR] Negative Pressure in Crankcase (score: 1): Author: ZinkZ10C@aol.com; Date: Mon, 10 Apr 2006 23:19:49 EDT; << Negative crankcase pressure is used in high horsepower engines to help, I believe, reduce windage HP losses. A separate vacuum pump is used.>> That and lower tension piston rings can be used reduc; /html/triumphs/2006-04/msg00261.html (8,123 bytes)

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