Daniel, I'm with Geordie - 3" up front with 2 1/2" down back is a good compromise. Easier to silence too. And if it's on a 1600 it's heaps easier to get it through the rear crossmember. I'm running that setup with my SR20 and at 14psi boost the exhaust backpressure never exceeds 3 psi. PL
-----Original Message----- From: Geordie Smith [mailto:[EMAIL PROTECTED]] Sent: Tuesday, 15 January 2002 15:13 To: [EMAIL PROTECTED] Subject: RE: Exhaust sizes (HELP) Importance: High 2.5" is generally a lot cheaper and in my opinion there is not a lot of benefit to the expense of going to a 3" system. If you want the best of both worlds, you can go for 3" off the turbo and go down to 2.5" further back as the gas is cooler and will condense slightly. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Daniel Kroehn Sent: Sunday, 13 January 2002 8:36 PM To: [EMAIL PROTECTED] Subject: Exhaust sizes (HELP) 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]/ --------------------------------------------------------------------- --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]/ --------------------------------------------------------------------- --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]/ ---------------------------------------------------------------------
