Shane Posted November 23, 2012 Share Posted November 23, 2012 http://www.ebay.co.uk/itm/110977622447?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 Saw this on ebay and wondered why no one has ever done it for the turbos on our cars. If it works it looks as though it could be a nice alternative to the usual path. Quote Link to comment Share on other sites More sharing options...
Josh Posted November 23, 2012 Share Posted November 23, 2012 I'm sure "fullthrottle" on here was upgrading to CT26 turbos, but then he went quiet. Quote Link to comment Share on other sites More sharing options...
Nikue Posted November 23, 2012 Share Posted November 23, 2012 Sorry in advance for the dumb question but essentially this is a standard turbo with much improved internals thats on ebay. The usual path is upgrading to greddys or borg etc ? Right?? Quote Link to comment Share on other sites More sharing options...
Shane Posted November 23, 2012 Author Share Posted November 23, 2012 Yes, if you were going to go with a T67 then single would be the normal way, but using this housing it appears that you would use the normal housings and theerfore be able to stay sequential. You can get the stock turbos rebuilt as hybrids, but I have never seen them done to this degree, I think normally they are only marginally larger than stock. Josh, yeah thats right, I do remember reading about his project. Do CT26s fit in place of the C12s then? Quote Link to comment Share on other sites More sharing options...
Josh Posted November 23, 2012 Share Posted November 23, 2012 Yes, if you were going to go with a T67 then single would be the normal way, but using this housing it appears that you would use the normal housings and theerfore be able to stay sequential. You can get the stock turbos rebuilt as hybrids, but I have never seen them done to this degree, I think normally they are only marginally larger than stock. Josh, yeah thats right, I do remember reading about his project. Do CT26s fit in place of the C12s then? They seem to, but I'm not sure if the stock pipework would cause the EGTs to rise. Not sure how these would work, as I doubt the stock setup will be able to handle the claimed 350+bhp over standard turbos. Quote Link to comment Share on other sites More sharing options...
Shane Posted November 23, 2012 Author Share Posted November 23, 2012 They seem to, but I'm not sure if the stock pipework would cause the EGTs to rise. Not sure how these would work, as I doubt the stock setup will be able to handle the claimed 350+bhp over standard turbos. I think the 350+ thing is to be taken with a bucket of salt but was thinking that it could still provide a nice increase over normal hybrids. Quote Link to comment Share on other sites More sharing options...
Josh Posted November 23, 2012 Share Posted November 23, 2012 I think the 350+ thing is to be taken with a bucket of salt but was thinking that it could still provide a nice increase over normal hybrids. I'm not sure how restrictive the stock twin turbo system is, but I recall reading a test done previously showing that when running 1.3bar on stock turbos, the increase in EGTs outweighed any power gains achieved over 1.2bar. Hopefully someone will know how restrictive it is, and whether more power can be pushed by just changing the turbos (cold side, by the looks of it). Quote Link to comment Share on other sites More sharing options...
Shane Posted November 23, 2012 Author Share Posted November 23, 2012 I'm not sure how restrictive the stock twin turbo system is, but I recall reading a test done previously showing that when running 1.3bar on stock turbos, the increase in EGTs outweighed any power gains achieved over 1.2bar. Hopefully someone will know how restrictive it is, and whether more power can be pushed by just changing the turbos (cold side, by the looks of it). OK, my understanding of that was slightly different, I thought it was high charge temperatures that made it not worthwhile over 1.3bar, but with a larger cold side this would be the case I wouldnt think. But maybe I have that wrong. Quote Link to comment Share on other sites More sharing options...
Josh Posted November 23, 2012 Share Posted November 23, 2012 OK, my understanding of that was slightly different, I thought it was high charge temperatures that made it not worthwhile over 1.3bar, but with a larger cold side this would be the case I wouldnt think. But maybe I have that wrong. To be fair, I probably have it wrong I would assume that the EGTs with raise, the more air going through the engine, and the pipework in the stock TT system wouldn't be open enough to allow enough air to flow out of the engine. Quote Link to comment Share on other sites More sharing options...
Shane Posted November 23, 2012 Author Share Posted November 23, 2012 To be fair, I probably have it wrong I would assume that the EGTs with raise, the more air going through the engine, and the pipework in the stock TT system wouldn't be open enough to allow enough air to flow out of the engine. I think it more that the stock compressor side is out of it's efficiency range at the higher levels. Quote Link to comment Share on other sites More sharing options...
Porky1978 Posted November 23, 2012 Share Posted November 23, 2012 I think the 350+ thing is to be taken with a bucket of salt but was thinking that it could still provide a nice increase over normal hybrids. American horsepower Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted November 23, 2012 Share Posted November 23, 2012 I think it more that the stock compressor side is out of it's efficiency range at the higher levels. Thats it exactly, more boost=more compressor speed meaning further heat induced. Quote Link to comment Share on other sites More sharing options...
bondango Posted November 24, 2012 Share Posted November 24, 2012 wont fit a 2jz/1jz unless used with a modified single manifold as Its a replacement bolt on for a mk3 supra 7MGTE CT26 (simialr to the GT4/Mr2 unit) problem is the stock CT26 shaft cant support that wheel, and its been proved countless times - biggest reliable seems to be 57 or 60 trim. Quote Link to comment Share on other sites More sharing options...
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