Quote:
Originally Posted by Croustibat
i would like to see real flowmaps.
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This turbo isn't released yet so no flowmaps currently.
Quote:
Originally Posted by Croustibat
There is no miracle, the turbo spools faster than a gtx3076r and makes 20 less HP, and the tester says its test rig limits top end ... so in the end it spools sooner than a gtx3076r, but i guess it also makes 50 less HP at the same pressure.
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So the EFR takes a hit in top end but the GTX doesn't? How do you figure the difference goes from 20Hp to 50Hp? They're both subject to the same disadvantage so I'd say the test is fair.
Quote:
Originally Posted by Croustibat
Finally, i would really like to know the price difference, what you actually know about "mixed flow", and how you know garrett is not using that already.
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They're not released yet so neither are the prices. There really isn't anything new here in terms of materials cost or manufacturing difficulty so I'd say prices will be about the same plus a little extra for R&D for the mixed flow turbine. Did you read the pdf I linked to about turbine efficiency? Mixed flow turbines showed a clear improvement in efficiency. And no, Garrett is not using mixed flow turbines on their GT/GTX series turbos but maybe they are on some diesel or industrial application I am not aware of. They are still using turbines from the 70's in the GT/GTX; it's only the compressor that has been improved. I know at the very least they have some diesel turbos with variable geometry turbines but I'm not sure of any other advancements they are pursuing on the turbine side.
PoorMans180SX, it looks like you've got it. Radial turbines flow perpendicular to the axis of rotation while axial turbines flow parallel. Mixed flow turbines are a combination of the two flowing diagonally I guess you could say. And yes, it's gonna be a bit of a wait. Current estimate on the regular EFR's is August/September while these new ones won't show up until the end of 2012 or early 2013. Also, I'd venture a guess that there will be a twinscroll housing just based off of how they make the twinscrolls only for the larger wheels that this has and also how they state there will be new housings available.
Also, lol at the spammer info...