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Driveline loss for 90-96 Nissan Z's typically 18% (archive)
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Posted by Dean on February 18, 2001 at 20:07:23:

In Reply to: Drivetrain Loss For A BMW Is Typically Thought... posted by dpeete on February 18, 2001 at 19:44:54:

18% for manual transmission and 20% for automatic transmission Z's. Unless BMW has some unbelievably efficient drivelines, I don't that 9% loss is possible.

17% sounds like a reasonable estimate.

Dean


to be 17.5% according to Jim C. That equates to multiplying the measured torque by 1.21. Jim C also claims the actual hp to be 250hp and -1/+10% (BMW spec).

The dyno is pretty good. And I know we aren't comparing apples to apples here, but we have seen another stock M Coupe put down nearly 220hp at a local dyno day.

Doug




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