Daniel, I would assume that he said least exhaust back pressure is best? Cheers Feral Errol
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Andrew Greenbury Sent: Monday, 14 January 2002 10:28 AM To: [EMAIL PROTECTED] Subject: Re: Exhaust sizes (HELP) Hi Daniel, hmmm that seems a bit contradictory because the larger diameter should have lower exhaust gas velocities in an otherwise equivalent system, so if the 2.5in doesnt exceed ~450 ft/sec, then the 3in definitely wont, not the other way around... So I am unsure what he is getting at - I thought that generally the benefits (lower pressure) of a larger dia system on a high performance turbo outweighed the disadvantages (lower gas velocity), within reason. Andrew > List, > > heres a question for all you switched on turbo boys. Following > traditional lines for an exhaust, I was going to get a 3 inch > system for my turbo project. However after reading "maximum > boost" by corky bell, it seems that he reckons that for the > approximate engine power output of my engine, I should use a 2.5 > inch system. The book also states that for a turbo setup the > least exhaust is the best? I'm very confused by now. Anyway back > to the 2.5 inch set-up, this size comes from a few calculations to > do with exhaust gas velocities. He recommends that the exhaust > gases shouldn't exceed ~450 feet per second, and thus a 3 inch > system would be capable of much more than that, so no good? There's > a bit more in the book but at this stage I've just become totally > confused. > > Eagerly awaiting some opinions.................. > > Daniel Kroehn > > --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
