TwinTurbo.NET: Nissan 300ZX forum - about the new RPM at certain speed...
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Subject about the new RPM at certain speed...
     
Posted by Snuffy on February 13, 2003 at 9:48 AM
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In Reply To Re: I put the NA rear end in my car... posted by RUN-4-COVER on February 13, 2003 at 08:24 AM
     
Message :Have you ever noticed your rpms in 5th at 80mph?

If old diff ratio is 3.69, and new is 4.08 then the revs will go up for the ratio between old and new diff :)

RPM you will have at certain speed = RPM you have now * 4.08/3.69


1990 2+2 Twin Turbo

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