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Old 02-26-2012, 05:13 AM   #8 (permalink)
EcoModding Apprentice
Join Date: Dec 2008
Location: Scotland
Posts: 102

Project EconoPolo - '04 Volkswagen Polo Twist TDi
90 day: 48.23 mpg (US)
Thanks: 14
Thanked 59 Times in 24 Posts
Some great reading here on back pressure:

Also a research paper on marine diesel engines which tests and proves that less exhaust back pressure is a good thing on turbo diesels.
Amateur SolidWorks Flow Simulator

Link to my Project EconoPolo (aeromodding a VW)
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California98Civic (02-26-2012), jeff88 (09-27-2013)