Originally Posted by triple88a
(Post 860374)
Soooo we need something to allow some of the flow to escape so the turbine can spin at a good rpm?
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Originally Posted by triple88a
(Post 860374)
Soooo we need something to allow some of the flow to escape so the turbine can spin at a good rpm?
Originally Posted by Savington
(Post 860386)
Very bad idea. Instead of surge, you would get overspeed.
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Originally Posted by RattleTrap
(Post 860388)
I thought that was a wastegate? :dunno:
Sav, I know the applications are apples to oranges, but in aviation we have relief valves that allow the intake charge to speed up, it has little effect on the speed of N1 (the blades) as they are maintaining rpm because they are being driven, though they are wanting to slow down due to the reversion. Allowing the intake to pass evens it out. I'm not convinced this would create an overspeed. |
Originally Posted by Savington
(Post 860386)
Very bad idea. Instead of surge, you would get overspeed.
Wastegate is on the exhaust side, we're talking about intake side. |
Originally Posted by triple88a
(Post 860391)
I'm not talking a 3" hole.. i'm talking a small hole that closes at x rpm.
Wastegate is on the exhaust side, we're talking about intake side. |
bottom line: on our poorly flowing low displacement motors there isn't much you'd be able to do with 25psi out of a 600whp turbo at 2500 rpm.
So no matter how much the kiddies have wet dreams about "OMG SPOOL AT 1500 AND BOOST EVERYWHERE, it simply defies physics. You want spool at 1500 get a 10L+ diesel. You want power at redline get a honda. You want a watered down compromise of both, get a miata:D /thread |
Ha, ok for some reason I was thinking the the VGT was on the compressor side.....my mistake. But, why dont they do the VGT on the intake and exhaust sides? I know that would make it even more complex but at the same time make it that much better if operating properly.
Hmmm....actually I dont even know if it would help much if any at all. Thoughts? |
Well sure it would help. Having a variable blade compressor AND turbine would be sweet.
Why not also have a variable A/R housing too? FU YEAH |
Originally Posted by Faeflora
(Post 860478)
Why not also have a variable A/R housing too? FU YEAH |
why not just have variable everything
lol |
Originally Posted by 18psi
(Post 860511)
why not just have variable everything
lol And variable IC for variable charge cooling!!! And variable tire size for efficiency vs speed!!!! OMGZZZZ |
The vanes dont work this way... That's why the they are not on the compressor. They direct the air flow at an angle, that's all they do. The closer to a right angle they are, the more the turbine is pushed, the more rpm can be achieved (with the amount of exhaust gas). That wouldn't do ---- but block flow on the compressor side.
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