TwinTurbo.NET: Nissan 300ZX forum - apparently Nissan engineers with an R&D dept and budget
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Subject apparently Nissan engineers with an R&D dept and budget
     
Posted by LJZTT on October 07, 2015 at 11:42 AM
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In Reply To We are kind of lucky we have what we have. If Nissan posted by not4resaleZ on October 07, 2015 at 11:06 AM
     
Message are in the opposite camp of what is most efficient way to "go big" vs some other people with no engineering background, no dedicated R&D department, and no dedicated R&D budget.....

"To avoid the response penalty of fitting a single large turbo with a commensurately large rotating inertia, the engineers used two hybrid turbos, each with a Garret T25 compressor and a Garret T2 turbine. Using these hybrids reduced rotating inertia by 20 per cent over conventional T2 turbos. And then of course there was the use of two smaller turbos, rather than a single large one. Compared with a single turbo of equivalent flow performance, the use of twin turbos reduced the rotational inertia by 30 per cent.

However, the Nissan engineers suggested that the use of twin turbos only became advantageous at peak power outputs of over 250hp."

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