Originally Posted by Braineack
(Post 908714)
what's that from?
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well someone got it all wrong. although I do like "30 rock"
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Originally Posted by hustler
(Post 908702)
I'm not very excited about the titanium aluminide.
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Do they come in full v-band and same form factor as my current 2871?
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I find it interesting that the turbine side has no exducer, the wheels is one constant radius. I'm no expert but I assume that reduces back pressure.
Paging Joe Perez. |
1 Attachment(s)
Originally Posted by Saml01
(Post 908737)
I find it interesting that the turbine side has no exducer, the wheels is one constant radius. I'm no expert but I assume that reduces back pressure.
Paging Joe Perez. https://www.miataturbo.net/attachmen...ine=1343419444 On a standard turbine there is a radius between the inducer and exducer as the flow of exhaust is inserted from the vertical and exits on the horizontal. On the dualboost design the flow goes from vertical to the horizontal via that heat shield and then it enters the turbine wheel horizontally and exits horizontally. |
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Shits old. I saw turbos like this in a 50 year old book about stationary engine design.
Theyre just using an axial turbine instead of a radial turbine. |
I like it a lot.
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Originally Posted by Full_Tilt_Boogie
(Post 908821)
Shits old. I saw turbos like this in a 50 year old book about stationary engine design.
Theyre just using an axial turbine instead of a radial turbine. |
Originally Posted by blaen99
(Post 908687)
Think 2871 power with 2554 spool.
oh right here
Originally Posted by hustler
(Post 908702)
I'm not very excited about the titanium aluminide.
Originally Posted by mazda/nissan
(Post 908713)
I bet your muffler is.
Anyways I think it's neat and all. Will the 2013 Indy Dallara chassis use this turbo? :party::party::party: |
Originally Posted by soviet
(Post 908884)
Anyways I think it's neat and all. Will the 2013 Indy Dallara chassis use this turbo? :party::party::party:
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nissan delta fan?
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how long till dualboost churbo?
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Originally Posted by Braineack
(Post 908952)
nissan delta fan?
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can you believe they actually seriously submitted that to indy for the 2012 chassis?
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Originally Posted by njn63
(Post 908960)
Negative, F1 fan. Dallara built HRT's first car and it was slower than the GP2 cars at some circuits. :rofl:
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Originally Posted by hustler
(Post 908702)
On a related note, double-stacked compressors is a pretty sweet idea, although I always thought turbos increased in efficiency as they grew larger due to tolerances dropping.
I'm not very excited about the titanium aluminide. The axial turbine deal is pretty clever. Compared to radials, axials can't do high expansion ratios (which is why you see multiple axial stages on aircraft) but they can operate with higher efficiency over more of the operating range. This efficiency advantage of axials is particularly large when the exh gas velocity is high compared to the turbine tip speed, precisely the situation that presents itself during an engine's blowdown period. The axial is simply better able to convert the engine's exh pulse energy into boost. And compared to radial, the axial is inherently a tidier wheel (lower mass, less inertia). The inertia situation is further improved by the higher rotational speeds, which lets everything get smaller and less inertia-y. On top of that, there's a big reduction in aero-induced thrust load on the rotating group. Less thrust load = lower bearing losses = more zippier turbo. To me the coolest part is that the improvement in transient response comes without adding much if any cost. The construction of a dualboost turbo is basically the same as a traditional wastegated turbo. |
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