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Fastest 911 T in the world, with K26???

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Old 08-12-2004, 04:52 PM
  #16  
Sami951
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Bigger turbos tend to be more effective, ie. they don't heat the compressed air as much as smaller ones. I don't think a twin turbo setup could work that well in a 4-cylinder car... since each turbo only had two cylinders feeding it, the exhaust pulses would hit at pretty excessive intervals (1 per two engine revolutions?) (or would that even be a problem? I don't know.)
Old 08-12-2004, 06:05 PM
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M758
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Porsche did try a sequential turbo set-up on the 951, but abandoned it as too complex
Old 08-12-2004, 06:14 PM
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Originally Posted by toddk911
What about twin sequential??? Plumbing might be a little easier as they would both feed the 4 cyn, jsut at differnet rpm/load.

It seems a twin T set up would always out perform a single as you could have a lot smaller turbos for super quick spool up, but they are driving half the motor so still have plenty of steam up top. Am I missing something??

I know a lot of the high end Supra TT guys switch back to single turbo's and I never understood that.
I think seqential would be the way to do it. If you tried a plain twin, it would be impossible to get the pipes equal lengths, thus different spool up times...



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