GTEASER Posted August 26, 2014 Share Posted August 26, 2014 I feel like I need this in my life and I don't know why. Yeah me too. But I want to know why....BAD!!! GTEASER's 2012 Legacy GT - Sold GTEASER's 2009 XTeaser - Sold GTEASER's 1992 Legacy SS - Sold Link to comment Share on other sites More sharing options...
acumenhokie Posted August 26, 2014 Share Posted August 26, 2014 Stolen from a Honda forum but it seems reasonable... Your deciding factors are the angle of exit of your wastegate port, wastegate size, and your desired wastegate setting. Big (or multiple) wastegates are needed to control low boost on big turbos. The higher the boost the more exhaust energy goes to spin the turbo, and the less goes out the wastegate *so the smaller the wastegate needed*. A lot of the wastegate sizing is a matter of intelligent design. You can look at the manifold and get a pretty good idea. I've tuned GT40 on twin 44mm wastegate FR manifolds for K20A2 in EP3; due to the horrible angles the wastegates exit at the exhaust has a hard time changing direction to flow out of them, and with 11 psi springs boost creeps to 15+ psi. Another car has a single 44mm gate w/ 11 psi spring for it's GT40, but the wastegate exit is angled downward from the collector so that it is easy to bypass the turbine, and thus the car maintains 11 psi wastegate flat as a strap. With the boost turned up, both manifolds/wastegate setups w/ GT40s do a great job of controlling boost. Link to comment Share on other sites More sharing options...
Rutchard Posted August 27, 2014 Share Posted August 27, 2014 Deadrick, can you briefly explain the advantage of the dual ewgs? bettner12 already explained the benefit, at least for twin scroll turbos, in post #24 Letting the exhaust pulses merge would negate the benefits of the twin scroll turbo. I'd say for our single scroll cars it's probably just easier to use two gates from a fabrication standpoint. To use one EWG on our cars you'd probably want all 4 exhaust runners to merge into one before the turbo and plumb the EWG from there. Link to comment Share on other sites More sharing options...
acumenhokie Posted August 27, 2014 Share Posted August 27, 2014 To use one EWG on our cars you'd probably want all 4 exhaust runners to merge into one before the turbo and plumb the EWG from there. ^^^ This. That was an important factor in my header with EWG design based on input from my installer, the fabricator and Geoff @ Full Race. Link to comment Share on other sites More sharing options...
ebo03 Posted September 25, 2014 Share Posted September 25, 2014 What EWGs did you go with? ^^This. What's the word Deadrick? Link to comment Share on other sites More sharing options...
fahr_side Posted September 25, 2014 Share Posted September 25, 2014 The reason btw the original header has two holes in the flange is that the JDM versions of BR9 / BM9 (and maybe other markets too) were fitted with an EJ207 and a twinscroll turbo. I have seen one but I didn't catch the model number. Looked very much like a VF-54 but with a TS exhaust housing. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
ebo03 Posted September 25, 2014 Share Posted September 25, 2014 The 15 WRX and 14 Forester (I believe) are also twin scroll from the factory. Chances this manifold will fit all models or is there something different about the FA motors? Link to comment Share on other sites More sharing options...
LagIsForePlay Posted September 26, 2014 Share Posted September 26, 2014 What EWGs did you go with? They look like Precision gates Link to comment Share on other sites More sharing options...
fahr_side Posted September 26, 2014 Share Posted September 26, 2014 The 15 WRX and 14 Forester (I believe) are also twin scroll from the factory. Chances this manifold will fit all models or is there something different about the FA motors? The spacing between the flanges is not the same, though it seems the turbo flange shape is the same and the turbos are interchangeable. I don't know about the USDM items but the turbos on the EDM '14 FXT models I've seen had Honeywell branded turbos made in China rather than the usual IHI stuff... Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
acumenhokie Posted September 26, 2014 Share Posted September 26, 2014 The spacing between the flanges is not the same, though it seems the turbo flange shape is the same and the turbos are interchangeable. I don't know about the USDM items but the turbos on the EDM '14 FXT models I've seen had Honeywell branded turbos made in China rather than the usual IHI stuff... Correct, new FXT and WRX use Honeywell turbos. http://turbo.honeywell.com/whats-new-in-turbo/video/gasoline-dualboost-turbo/ Link to comment Share on other sites More sharing options...
DaHellWidU Posted September 26, 2014 Share Posted September 26, 2014 Subscribed, hoping this gets mass produced w\ t3\t4 fittings Link to comment Share on other sites More sharing options...
s2baru Posted September 26, 2014 Share Posted September 26, 2014 I might buy it and do exactly that^ Link to comment Share on other sites More sharing options...
red50fordf1 Posted October 28, 2014 Share Posted October 28, 2014 FromETS website: ETS 2010+ Legacy GT Turbo Manifold is built in house using 1.9" SCH40 SS material. This insures the manifold last the life of your vehicle and increases horsepower. This manifold is designed to be used with 2x Tial MV-S wastegates. This gives you precise boost control when you need it most. Link to comment Share on other sites More sharing options...
jojorios Posted November 7, 2014 Share Posted November 7, 2014 Lol, I will get some professional answers from PIA. If you look at the pics of the exhaust manifold its actually setup for twinscroll. As far as spool the car feels completely different and the only thing different is the manifold and EWG. PM sent if whenever you have a moment. Link to comment Share on other sites More sharing options...
jojorios Posted November 10, 2014 Share Posted November 10, 2014 Because I am trying to weigh all my options with my boost creep issue, other than being able to control boost better with this, and from the sound of if, quicker spool? Are there any HP gain or other gains to this? Link to comment Share on other sites More sharing options...
ebo03 Posted November 10, 2014 Share Posted November 10, 2014 Yes you would get overall better boost control which will result in quicker response, smoother curves, and a slight increase in power. And of course it will sound badass. Link to comment Share on other sites More sharing options...
jojorios Posted November 10, 2014 Share Posted November 10, 2014 So other than replacement gaskets, 2 wastegates is there anything else that would be needed? The IWG on the turbo has to be welded shut correct? And is this usually reversible? Link to comment Share on other sites More sharing options...
ebo03 Posted November 10, 2014 Share Posted November 10, 2014 You can have it welded shut but there are also brackets to hold the IWG shut in case you sell or decide to revert back later. Check out Cobb, Grimmspeed, and IAG. I'm not sure if the VF bracket would fit our turbo without modification as I haven't done this yet. Might also need v-band dump tubes for the wastegates. Not sure if ETS supplies them. It would be a quick fab job for any shop though. Link to comment Share on other sites More sharing options...
jojorios Posted November 10, 2014 Share Posted November 10, 2014 You can have it welded shut but there are also brackets to hold the IWG shut in case you sell or decide to revert back later. Check out Cobb, Grimmspeed, and IAG. I'm not sure if the VF bracket would fit our turbo without mmodification as I haven't done this yet. Might also need v-band dump tubes for the wastegates. Not sure if ETS supplies them. It would be a quick fab job for any shop though. Thanks for the info. I'll call up ETS tomorrow. Link to comment Share on other sites More sharing options...
ebo03 Posted November 10, 2014 Share Posted November 10, 2014 Thanks for the info. I'll call up ETS tomorrow. I'm curious what their build time is on one of these. Something tells me they don't have them sitting on the shelves ready to ship. Link to comment Share on other sites More sharing options...
jojorios Posted November 12, 2014 Share Posted November 12, 2014 They said they can build one and ship it by the end of next week. Would probably need to build dump tubes. The person responding said they think they may be jigged but wasn't sure. Not exactly sure what "jigged" means. Their 10% sale is just starting also..... Link to comment Share on other sites More sharing options...
ebo03 Posted November 12, 2014 Share Posted November 12, 2014 A jig is made to streamline fabrication process and ensure each part is made to the same specs. Link to comment Share on other sites More sharing options...
jojorios Posted November 13, 2014 Share Posted November 13, 2014 Got a response. The dump tubes are jigged. Not sure what that means now. I was under the impression that jigged was for mainfold. Link to comment Share on other sites More sharing options...
ebo03 Posted November 13, 2014 Share Posted November 13, 2014 That makes sense b/c the manifold would not be available for sale if it were not already jigged. I contacted ETS when the manifold was first released. At that point they did not have dump tubes available. So I guess they will be producing and selling dump tubes soon. Link to comment Share on other sites More sharing options...
lingling1337 Posted November 13, 2014 Share Posted November 13, 2014 A jig is a fixture. Jig just means a custom made piece to ensure a process is done the same way every time. Depending on what specs need to be controlled, a jig can be anything. http://i1.kym-cdn.com/entries/icons/original/000/014/033/knowing.jpg Link to comment Share on other sites More sharing options...
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