Tim240z Posted May 15, 2003 Share Posted May 15, 2003 Here is a work in progress. All SS construction, 3.25" ID. I just need to pull the stock downpipe from my ZXT and bolt up the flange and 'clock' the pipe for the correct location and mark. Also need to mark the locations for the 2 O2 sensor locations, then everything can go back to my machinist for tig welding: This thing should let that 'spinning wheel' breathe like a somebeeatch.... Tim Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted May 15, 2003 Share Posted May 15, 2003 I'm curious how you will get that large of a pipe on the flange - Scottie barely got a 2-1/2" pipe on the flange...3" won't fit without interference from the hardware. And no one I've heard is running an exhaust bigger than 3" (except for James T). Oh, your pictures didn't show up - they may show me the answers, but... Quote Link to comment Share on other sites More sharing options...
Tim240z Posted May 15, 2003 Author Share Posted May 15, 2003 OK the pics are working now!! Tim Quote Link to comment Share on other sites More sharing options...
yo2001 Posted May 15, 2003 Share Posted May 15, 2003 He's got a T4 Quote Link to comment Share on other sites More sharing options...
Tim240z Posted May 15, 2003 Author Share Posted May 15, 2003 Nah, I wish...it's a stock T3 for now. I have a spare T3, so I will eventually hybridize that one. Tim Quote Link to comment Share on other sites More sharing options...
yo2001 Posted May 15, 2003 Share Posted May 15, 2003 So why do you have T4 V-band flange? Quote Link to comment Share on other sites More sharing options...
Tim240z Posted May 15, 2003 Author Share Posted May 15, 2003 It's not. I have no idea what that flange is that you are referring to. This is just a way to use the largest pipe possible and still bolt it up to the T3 turbo housing. The pipe will eventually be welded to that flange in the configuration shown in the first picture above. Tim Quote Link to comment Share on other sites More sharing options...
yo2001 Posted May 15, 2003 Share Posted May 15, 2003 hmm, looks like T4 outlet flange. They are circular like that. Quote Link to comment Share on other sites More sharing options...
240Z Turbo Posted May 16, 2003 Share Posted May 16, 2003 the tangential T4 has a v-band clamp which this is not. The on-center t4 housing has a 4bolt flange, but the bolt holes are evenly spaced 90deg apart. You can see from the pic those holes are more in a rectangular configuration. I used to run 3.5" dp on my T64 because you could get the V-band in that size. Can't say it will make much difference over 3" with such a small turbine outlet...but it sure looks cool. Quote Link to comment Share on other sites More sharing options...
Lockjaw Posted May 16, 2003 Share Posted May 16, 2003 Hog it out some more. That thing looks nice, but a t4 would really be able to benefit from that part. Quote Link to comment Share on other sites More sharing options...
Guest jt240z Posted May 16, 2003 Share Posted May 16, 2003 Do you plan on making any more? I would be very interested in a 3" version. Quote Link to comment Share on other sites More sharing options...
Tim240z Posted May 16, 2003 Author Share Posted May 16, 2003 It's gonna depend on how much this works out costing. The stainless is pretty expensive stuff, and it's fairly hard to machine. As you can see the flange and the mandrel pipe is stainless! My reasoning behind going with the 3.25 inch ID pipe is because of the bend so close to the turbo. I figure the bigger the diameter at the bend the better. I will step it back down to 3" where the exhaust hooks in to the downpipe. I'm also putting in 2 x O2 sensor fittings, that way i can run a A/F ratio meter. I am NOT planning to put an EGR fitting in. By the time I need to smog this car again, I'll have the engine in my other 240. Long story short: My machinist will make templates for future work, if needed. Tim Quote Link to comment Share on other sites More sharing options...
Guest zline Posted May 16, 2003 Share Posted May 16, 2003 dude tim...we should get together...and do that monster suicide machine z... Quote Link to comment Share on other sites More sharing options...
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