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Thread: Twin turbo math question
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04-10-2009 #1
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- Feb 2006
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Twin turbo math question
I am calculating the proper sized twins for a motor (400cu) shooting for 780HP.
The peak HP has been calculated to require 75lb/min and the peak Tq requires 63lb/min (taking into account losses in plumbing, inefficiencies, etc).
Does that mean each turbo will have to provide 37.5lb/min(HP) and 31.5lb/min (TQ)?
When choosing a turbo, will the calculated pressure ratio to use on the compressor map stay the same (I calculated it to be 2.355)? I did not think it needed to be divided by 2 like the airflow.
And where is Mean69???? Anyone heard from him?? Mr. Rupp?
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