>Scott: ...the stock tail pipe is in the corner of the vehicle ..so that a vortex there pulls exhaust away. Don't forget that vortex creates pressure waves that are timed to extract more exhaust from your cylinder for more power and better fuel economy. The exhaust cycle in the cylinder creates positive and negative waves that when timed properly with the length of pipe will actually draw out more exhaust and create a vacuum to pull in additional fuel. That is why some people shorten or extend exhaust pipes an inch or so on racing cars. I think Scott will loose power and fuel economy pulling a trailer with an extended tail pipe for this reason (all though not EXCLUSIVELY for this reason.) ed- 91 DoKa, not modified for track racing. |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.