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Re: Overdrives and rpm

To: alpines@autox.team.net
Subject: Re: Overdrives and rpm
From: Jay_Laifman@countrywide.com
Date: Wed, 27 Jun 2001 10:00:59 -0700
Tom writes:

>With all this talk of Overdrives, ...
>does anybody know how fast the Series
>V engine is approximately turning at
>65 mph?

My speedo is completely accurate, as it was just calibrated, but my tach is
probably off.  I do recall others reporting certain RPMS, etc.  I do
believe though that before I changed to the OD (and the speedo was not way
off), my tach would read about 4000-4100 at 65.  Now, with the OD and the
calibrated speedo, at 65 I'm reading about 3600.  I believe others have
reported 3300 rpm at 65.  For a long time, I've believed my tach to be
about 250-300 high.  So, this makes sense.

That all said, I think someone had and equation for all this, and thus had
the exact numbers, perhaps taking into account some tire size change too.

Jay

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