Actually in fourth gear, overdrive not engaged, your spedometer and
Tachometer mirror each other. All you have to do is see where the
Tachometer needle is and look over at the spedo at the same spot and that is
your speed. NOTE it only works in 4th.
Patrick
----- Original Message -----
From: Cometman <cometman_98@yahoo.com>
To: <spitfires@autox.team.net>
Sent: Friday, October 08, 1999 9:36 PM
Subject: Poor man's speedomete
>
>
> Hi,
> It's not long till my speedometer gear gets here from England, but I
> was told that in top gear, you double the rpms/100 to get the
> approximate speed. If you invoke the overdrive how does that affect
> the calculation?
>
> Mike
> 1975 Spitfire (Horace) could be daily driver but I can't part with my
> CRX
> 1969 Spitfire (Cynthia) sitting in storage
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