Nodalmighty Posted October 21, 2010 Share Posted October 21, 2010 Sure is this not the same setup as Supra OEM Turbos with the Wastegate bolted on Considering all the addional Accessaries bolted into the Turbo, is it is not a better option to have a conventional Single Setup with everything seperate; if you need to replace anything you dont need to replace the whole Turbo too or at least you dont need to touch the turbo if you can get the items seperate Items like external wastegates are easier to get at if they need replacing, surely it would be alot more time consuming to get the waste gate bolted to the Turbo Housing What are the benefits of having this Items bolted to the Turbo, just a tidy setup? but with the disadvantage if something need replacing it will cost you more in labour to get at the individual items replaced due to how tight everything is under the hood? I guess you've never took a external waste gate off a Supra Not only are they usually underneath, but they have a habit of going boink as all the pipes pull in different directions when the tension is released. It then takes three people to pull all the tubes in place while the v-bands are put back on. I could get the internal actuator off in about 5 mins if it was clocked correctly . I like the compressor based recirc valve. The V12 BWM TT has those and I wondered what they were for, now I know. Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 21, 2010 Share Posted October 21, 2010 Its a wonder then why the Aftermarket kits deviated away from a conventional OEM setup like this guys are now producing Quote Link to comment Share on other sites More sharing options...
T2 MSW Posted October 21, 2010 Share Posted October 21, 2010 Im liking the options of no wastegate and recirc etc. May be a possible replacement for my PT67DBB when they start shipping Quote Link to comment Share on other sites More sharing options...
johnny g Posted October 21, 2010 Share Posted October 21, 2010 Im liking the options of no wastegate and recirc etc. May be a possible replacement for my PT67DBB when they start shipping It does sound great. I'm guessing the in-built boost control will work via an ECU? Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted October 21, 2010 Share Posted October 21, 2010 It does sound great. I'm guessing the in-built boost control will work via an ECU? I reckon on your setup, this could tidy it up no end. Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 21, 2010 Share Posted October 21, 2010 It does sound great. I'm guessing the in-built boost control will work via an ECU? I would rather use the Syvec's and ryan to control the Boost He can sit in the back all the time Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted October 21, 2010 Share Posted October 21, 2010 It does sound great. I'm guessing the in-built boost control will work via an ECU? It's just a solenoid built onto the tubro isn't it? So it should work the same as a normal system, i.e. the boost control unit speaks to the solenoid. Quote Link to comment Share on other sites More sharing options...
Thorin Posted October 21, 2010 Share Posted October 21, 2010 Very interesting. Quote Link to comment Share on other sites More sharing options...
Miguel Posted October 21, 2010 Share Posted October 21, 2010 I've given this some thought and I can't help come to the conclusion that this really is just a repackaging exercise. There certainly isn't anything 'new' as far as turbo technology goes. Each individual component has been used in some form down the line by other aftermarket manufacturers, just not in one unit (AFAIK). This layout has certainly been used in the OEM field. I would call this more evolution rather than revolution. It's a great idea to simplify installation, but I would loved to have seen more ground being made on aftermarket VTG/VNT turbos. Porsche has been using VTG's on petrol engines for a while now, so it can be done. Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 21, 2010 Share Posted October 21, 2010 Have to agree with the above, might make for a simple install on a na-t. Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted October 21, 2010 Share Posted October 21, 2010 I've given this some thought and I can't help come to the conclusion that this really is just a repackaging exercise. There certainly isn't anything 'new' as far as turbo technology goes. Each individual component has been used in some form down the line by other aftermarket manufacturers, just not in one unit (AFAIK). This layout has certainly been used in the OEM field. I would call this more evolution rather than revolution. It's a great idea to simplify installation, but I would loved to have seen more ground being made on aftermarket VTG/VNT turbos. Porsche has been using VTG's on petrol engines for a while now, so it can be done. I reckon that Cosworth will come out with a Rocket style antilag system that runs off unburnt fuel in exhaust. Push a button and instant 150,000rpm of comperssor rpm. Having been in the Prodrive ALS Demo car where this did actually happen with Ben H (who refined it for road use as a demo for the Japs) and him now working for Cosworth F1 as there chief calibration engineer, one does wonder Quote Link to comment Share on other sites More sharing options...
johnny g Posted October 21, 2010 Share Posted October 21, 2010 Porsche has been using VTG's on petrol engines for a while now, so it can be done. Yep, the new GT2RS is running small relatively small turbos at 1.6bar to get 600bhp+ with apparently almost-zero lag. It would be nice to see these running on the 2JZ. But, is it prohibitive to use larger frame turbos? Also the mapping would be a bit of a nightmare I'm guessing. Would something like the Syvecs be able to handle it? Quote Link to comment Share on other sites More sharing options...
Miguel Posted October 21, 2010 Share Posted October 21, 2010 I reckon that Cosworth will come out with a Rocket style antilag system that runs off unburnt fuel in exhaust. Push a button and instant 150,000rpm of comperssor rpm. Having been in the Prodrive ALS Demo car where this did actually happen with Ben H (who refined it for road use as a demo for the Japs) and him now working for Cosworth F1 as there chief calibration engineer, one does wonder Certainly an interesting prospect. Quote Link to comment Share on other sites More sharing options...
Miguel Posted October 21, 2010 Share Posted October 21, 2010 Yep, the new GT2RS is running small relatively small turbos at 1.6bar to get 600bhp+ with apparently almost-zero lag. It would be nice to see these running on the 2JZ. But, is it prohibitive to use larger frame turbos? Also the mapping would be a bit of a nightmare I'm guessing. Would something like the Syvecs be able to handle it? It's all possible, the only restriction is £££. Quote Link to comment Share on other sites More sharing options...
johnny g Posted October 21, 2010 Share Posted October 21, 2010 It's all possible, the only restriction is £££. *Looks at Jamie* Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 21, 2010 Share Posted October 21, 2010 *Looks at Jamie* Little turbos and 600bhp? behave:D im skint anyhow:( Quote Link to comment Share on other sites More sharing options...
bondango Posted October 21, 2010 Share Posted October 21, 2010 Cosworth will be involved with 2JZ development by the end of this year Quote Link to comment Share on other sites More sharing options...
Wez Posted October 21, 2010 Share Posted October 21, 2010 Cosworth will be involved with 2JZ development by the end of this year They were happy to get involved over a year ago but sadly I couldn't get enough heads together to fund it Quote Link to comment Share on other sites More sharing options...
bondango Posted October 21, 2010 Share Posted October 21, 2010 They were happy to get involved over a year ago but sadly I couldn't get enough heads together to fund it I dont know how much this will be of a commercial R&D excercise for them as yet, but a cosworth built 2jz will come out of it. Quote Link to comment Share on other sites More sharing options...
T2 MSW Posted October 21, 2010 Share Posted October 21, 2010 I dont know how much this will be of a commercial R&D excercise for them as yet, but a cosworth built 2jz will come out of it. was looking at the cosworth subaru built long block at Snetterton. Very impressive piece of kit and at 7K built it was quite reasonable too Quote Link to comment Share on other sites More sharing options...
bondango Posted October 21, 2010 Share Posted October 21, 2010 was looking at the cosworth subaru built long block at Snetterton. Very impressive piece of kit and at 7K built it was quite reasonable too Definately, the cosworth EJ25 block with Billet crank etc etc comes in at under 5K Quote Link to comment Share on other sites More sharing options...
Miguel Posted October 21, 2010 Share Posted October 21, 2010 Cosworth will be involved with 2JZ development by the end of this year I really hope they do, but I heard this over 2 years ago. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted October 21, 2010 Share Posted October 21, 2010 Variable vane turbos are unreliable enough on diesels, let alone big power petrol engines I'm sure my mate that was lead mechanic at a porsche dealership said that porsche turbo's ran variable vane technology. Its not for big power its for better spool. Gas turbines have been running this technology since the late 60's. In fact you could use it very similarly to gas turbines to prevent compressor stalling whilst still spinning the turbine over. Remember its not the exhaust side you need to vary its the compressor side to reduce restriction at lower revs, once its spinning you then bang in the angle of attack/compression based on throttle position. Quote Link to comment Share on other sites More sharing options...
bondango Posted October 21, 2010 Share Posted October 21, 2010 I really hope they do, but I heard this over 2 years ago. true, but Unfortunately at that time, they seen a new market in the VG35, and got involved with the development of that engine in the SVA Imports 350z. Quote Link to comment Share on other sites More sharing options...
bondango Posted October 21, 2010 Share Posted October 21, 2010 i wonder what happened when HKS went down the VNT route 2 years ago? http://www.endless-r.com/images/uploaded/08jan22_160047_img_hks-vnt-turbo-1.jpg http://www.endless-r.com/images/uploaded/08jan22_160322_img_hks-vnt-turbo-2.jpg Quote Link to comment Share on other sites More sharing options...
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