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Re: Speedo drive on '63

To: "David Kernberger" <dkern@napanet.net>
Subject: Re: Speedo drive on '63
From: "James Nazarian Jr" <james.nazarian@colorado.edu>
Date: Sat, 15 Jul 2000 02:15:32 -0600
Cc: <mgb-v8@autox.team.net>, <buick-rover-v8@autox.team.net>
Reply-to: "James Nazarian Jr" <james.nazarian@colorado.edu>
Sender: owner-mgb-v8@autox.team.net
any thoughts on where I get this driven gear? and where exactly does that
live?  is there an adapter that goes on the trans, or is it inside?

James Nazarian
71 B Roadster
71 BGT 
63 Buick 215

"Aerodynamics are for people who cannot build engines"
Enzo Ferrari

----------
> From: David Kernberger <dkern@napanet.net>
> To: James Nazarian Jr <James.Nazarian@colorado.edu>
> Cc: mgb-v8@autox.team.net; buick-rover-v8@autox.team.net
> Subject: Re: Speedo drive on '63
> Date: Friday, July 14, 2000 7:05 PM
> 
> Jim,
> 
>       My recollection is that all U.S. made speedometers of that time
> period were calibrated for 1000 revolutions per mile.  That means the
cable
> turns 1000 RPM when the car is traveling 60 MPH.  The trick was to choose
> the correct driven gear so you would actually get that speed out of the
> cable for your particular combination of rear axle ratio and rear wheel
> size.  There were usually several different gears offered to suit
original
> production variations of these parameters.
> 
>       I have the notion that there was no standard caibration for British
> cars----others??????
> 
> Cheers,
> 
> Dave K.
> 
> **************************************************
> 
> >Does anyone know how fast the speedo gear on the '63 Buick T-10 turns?
> >This is the original 4speed that was optional on the Special.
> >
> >James Nazarian
> >'71 B roadster
> >'71 BGT ever so slowly turning into a V8
> >'63 Buick 215
> >
> >"Aerodynamics are for people who cannot build engines"
> >Enzo Ferrari
> 

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