Hi Daniel, Yeah, I thought I'd come back and see how the list is going! I was subscribed on my home address before and it was getting a bit much. This time I've tried doing it at work, so we'll see how it goes. Between the Srtransplants list and this one I'm afraid my email volume may be getting a bit high!
I'm currently not running a cat (smack smack!), but when I do I guess it will be in the usual place just after the dump pipe. The best dump pipe dia is generally 3". That's pretty much the biggest you'll fit without hassles. I've made a few now and I'm considering making a batch for sale to suit SR's into 1600's. I'll send you a photo of one. I've seen a lot of "professional" dump pipes and I've decided that it wouldn't be too hard to improve on them myself! PL -----Original Message----- From: Daniel Kroehn [mailto:[EMAIL PROTECTED]] Sent: Wednesday, 16 January 2002 18:57 To: [EMAIL PROTECTED] Subject: Re: Exhaust sizes (HELP) HOLY SHIT, where did you come from Pete, I thought you'd left the list forever? Anyway, thanks for the advice. The muffler I have coming has a 2.25 inlet and 4 inch outlet. So I'm still undecided what size to go from the crossmember back. Up until the crossmember I'm going to use 3 inch for sure. Where did you mount your cat? The other question I have is what size dump pipe to use? I want to seperate the internal wastegate gases from the turbine gases and join them together after the dump pipe exits the engine bay. The turbine itself is only about 2.25" in diameter so should I use a 2.25" - 3" reducer/expander and build a 3 inch dumpy with a 1.25" seperate wastegate pipe? Cheers Daniel Kroehn ----- Original Message ----- From: "LIEBIG, Peter" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, January 16, 2002 3:15 PM Subject: RE: Exhaust sizes (HELP) > 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]/ ---------------------------------------------------------------------
