scotty nm35 Posted November 13, 2015 Share Posted November 13, 2015 Psssh, I have two of them! How does that system actually work? Because looking at it, I actually thought it was a better (i.e, far easier to hide) system than Scotty's "external gate on housing" setup. Then again, why not just simply make the dump diameter that size? This isn't an external gate, it's a crappy exhaust bleed off gate. If your exhaust is building that much pressure then it's simply not flowing enough, and as I would explain to a customer, 3 inch is too small for 400kw. I guess if you researched a little Tao you would have known that, but hey perhaps the carbon monoxide is doing it's job. How are your steering rack boots? Link to comment https://www.sau.com.au/forums/topic/460950-r34-gtt-exhaust-options/page/2/#findComment-7637784 Share on other sites More sharing options...
Kinkstaah Posted November 13, 2015 Share Posted November 13, 2015 Yes, but an exhaust bleed off gate and an external wastegate/screamer really has the same effect ultimately, which is to reduce pressure in the dump/immediately after the turbo. This seeeeems like it's easier to hide, easier to setup, etc. Then again, maybe the answer is to run a comically large dump pipe. 3in into 6in on a 45 regree angle anyone? Would have been nice to see how well my setup actually ran, if it would you know, actually run. 1 Link to comment https://www.sau.com.au/forums/topic/460950-r34-gtt-exhaust-options/page/2/#findComment-7637787 Share on other sites More sharing options...
Ben C34 Posted November 13, 2015 Share Posted November 13, 2015 Tao, how about instead of a weird spring flap thing, you put an external gate on it. Yeah. An internal gate turbo, then your weird dump then an external gate on the dump. Gate city. Use boost applied to bottom port to open the extra external gate. Then can have a solenoid to keep it shut if you want to boost past an rbt or heaps cops. I might just patent that idea. More gates equals more better. Link to comment https://www.sau.com.au/forums/topic/460950-r34-gtt-exhaust-options/page/2/#findComment-7637795 Share on other sites More sharing options...
gtr jet Posted November 13, 2015 Share Posted November 13, 2015 1 Link to comment https://www.sau.com.au/forums/topic/460950-r34-gtt-exhaust-options/page/2/#findComment-7637808 Share on other sites More sharing options...
hypergear Posted November 13, 2015 Share Posted November 13, 2015 Haha. I thought about it. The bleeder vale was a much cheaper alternative, and hides better. Link to comment https://www.sau.com.au/forums/topic/460950-r34-gtt-exhaust-options/page/2/#findComment-7637853 Share on other sites More sharing options...
sneakey pete Posted November 13, 2015 Share Posted November 13, 2015 wouldn't getting a 3.5" exhaust achieve the same goal? Link to comment https://www.sau.com.au/forums/topic/460950-r34-gtt-exhaust-options/page/2/#findComment-7637924 Share on other sites More sharing options...
hypergear Posted November 13, 2015 Share Posted November 13, 2015 Yes, it would, I think Xfoce makes them. They are much louder. Link to comment https://www.sau.com.au/forums/topic/460950-r34-gtt-exhaust-options/page/2/#findComment-7637958 Share on other sites More sharing options...
GTSBoy Posted November 13, 2015 Share Posted November 13, 2015 They are much louder. Except when that flap is open!!!! Has the spring lost its tension from the heat yet? Link to comment https://www.sau.com.au/forums/topic/460950-r34-gtt-exhaust-options/page/2/#findComment-7638219 Share on other sites More sharing options...
hypergear Posted November 13, 2015 Share Posted November 13, 2015 They working fine so far. Car had had 5 dyno hours since as well. Link to comment https://www.sau.com.au/forums/topic/460950-r34-gtt-exhaust-options/page/2/#findComment-7638231 Share on other sites More sharing options...
GTSBoy Posted November 13, 2015 Share Posted November 13, 2015 Colour me surprised. Link to comment https://www.sau.com.au/forums/topic/460950-r34-gtt-exhaust-options/page/2/#findComment-7638251 Share on other sites More sharing options...
Kinks Posted November 16, 2015 Share Posted November 16, 2015 Get a JJR bellmouth dump pipe and venom high flow cat Dump pipes / cats make no different to the noise, only flow. I have the above on the standard catback and it is as quiet as a mouse. Get a custom catback exhaust made up. DO NOT SKIMP on the catback. My cheap catback is deafening at 2000 RPM which is where a street car spends 90% of its time. It's quieter when you are at 3000+, which is the opposite of what it should be. I went back to the standard catback and the shit exhaust is currently in my garage waiting for me to figure out how to get rid of it (probably to scrap metal recycler). 1 Link to comment https://www.sau.com.au/forums/topic/460950-r34-gtt-exhaust-options/page/2/#findComment-7639045 Share on other sites More sharing options...
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