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In theory (twin turbo setup)

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Old Feb 9, 2011 | 04:08 PM
  #76  
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Originally Posted by Slevin_FD
I should clarify that. I see larger turbo taking time to spool and smaller turbos lacking top end HP.
Its bad way to look at it. Compressor takes certain amount of HP to produce positive pressure and target pressure ratio and flow-rate with certain efficiency and turbine supplies this HP through same means.

So only left thing is rotational inertia - thing that influences transient response, not when it will start building a boost...
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Old Feb 9, 2011 | 06:12 PM
  #77  
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Originally Posted by Liborek
Its bad way to look at it. Compressor takes certain amount of HP to produce positive pressure and target pressure ratio and flow-rate with certain efficiency and turbine supplies this HP through same means.

So only left thing is rotational inertia - thing that influences transient response, not when it will start building a boost...
Thoughts on this?? Or something comparable, but I really like this package.
http://www.full-race.com/store/turbo...258-turbo.html
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Old Feb 22, 2011 | 02:48 PM
  #78  
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Originally Posted by Slevin_FD
Thoughts on this?? Or something comparable, but I really like this package.
http://www.full-race.com/store/turbo...258-turbo.html
Well, I can´t comment on how it would work as I haven´t done it. But my gut feeling tells me, that turbine side won´t be sufficient to fully utilize compressors potential....
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Old Feb 22, 2011 | 06:16 PM
  #79  
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Originally Posted by Liborek
Well, I can´t comment on how it would work as I haven´t done it. But my gut feeling tells me, that turbine side won´t be sufficient to fully utilize compressors potential....
Yea I ran some numbers and didn't like what I saw. I'm still gonna fab up this manifold but move my desired boost range to somewhere around 4.3K to redline. 4K if I'm lucky. I'm also going to try and get it to work with a single wastegate to keep costs down. HP goal is still in excess of 500HP. I'll drop it inot an FC so I've got room to move stuff around or change to an RE-A style single manifold.
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Old Feb 24, 2011 | 01:36 PM
  #80  
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SoundPerformance built a sequential supra from scratch, it's an epic read over on the Supra forums. Even with a year or more of work, they still don't have a smooth transition.

http://www.youtube.com/watch?v=0Zdmu_q2pK8
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Old Feb 24, 2011 | 04:58 PM
  #81  
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that supra is nuts!
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Old Feb 24, 2011 | 08:53 PM
  #82  
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Originally Posted by NissanConvert
SoundPerformance built a sequential supra from scratch, it's an epic read over on the Supra forums. Even with a year or more of work, they still don't have a smooth transition.

http://www.youtube.com/watch?v=0Zdmu_q2pK8
i believe the transition to be very good....

i've read all 36 or 38 pages of the build and seen the dyno graph.... the power loss at transition is around 25hp&tq, not bad considering how much total power the car has.... peak and below the curve.

And the cost of that build is EPIC.... i've never seen such a restoration for any import cost the amount the owner has paid/invested....
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Old Feb 25, 2011 | 09:43 PM
  #83  
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Well I'm not really wanting sequential twins, but That's the look I want for my manifold. Up top in your face.eating small animals and stray children. Now that's a turbocharger.
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Old Feb 25, 2011 | 09:47 PM
  #84  
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Originally Posted by Slevin_FD
Well I'm not really wanting sequential twins, but That's the look I want for my manifold. Up top in your face.eating small animals and stray children. Now that's a turbocharger.
you can definitely get that sexy monster look with a single turbo in the FD bay.
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Old Feb 25, 2011 | 10:41 PM
  #85  
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Originally Posted by KKMpunkrock2011
you can definitely get that sexy monster look with a single turbo in the FD bay.
Yes, but almost everyone has that same look. Sure you can polish the compressor housing or do something custom like Anodize or some sort of flashy intake. But when it's all said and done. noone is really doing anything different . I want the performance and the wow factor. I've got alot of respect for the single turbo guys. I respect the stock twins too. But I've got to go a different direction.
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