Ralph,
I wouldn't recommend shorting around that switch. If you did, the OD
would operate in any gear including reverse. Trust me on this one, you
don't want it in reverse.
The best way to do this is to figure out how to mount a switch and
actuator that is energized when the transmission is in second gear. The
switch would be wired in parallel to the other gearbox switch (as is
done with the A type OD on TR's). This arrangement will let the OD
operate in 2nd, 3rd or 4th.
However, I can't help but thinking that Triumph knew what they were
doing when they eliminated 2nd from the OD actuation. I'd be very
interested to see the results obtained by doing this.
Regards,
Joe Curry
wizardz wrote:
>
> simply bypass the switch on top of the tranny
> it's a big round switch.
> The problem is the torque load will probably damage the O/D.
> That's why it's disabled in the lower gears.
> Paul Tegler
>
> 1973 MGBGT - Daily Driver (With O/D)
> 1975 Spitfire - in Cherry shape
> 1980 Spitfire - in re-hab (with O/D)
> 1978 Spitfire - in Superb Shape!
> wizardz@toad.net
> http://www.teglerizer.com
> (see menu for MG Automobiles and Triumph Automobiles)
> -----Original Message-----
> From: Ralph Goodwin <rgoodwin@ipass.net>
> To: Triumpn discusion group <triumphs@autox.team.net>; Spitfire Discussion
> Group <spitfires@autox.team.net>
> Date: Friday, August 27, 1999 11:24 PM
> Subject: Wiring Spitfire Overdrive
>
> >
> >I'm working with a local school to convert a 80 Spitfire to electric
> >drive for use in a school competition program. The car will be
> >autocrossed. It is expected that typically the car will need to be
> >shifted once when driven in competition. The numbers would indicate
> >that if we could use the overdrive in second gear we could eliminate the
> >
> >need to shift gears with the clutch, the car will be driven from a
> >stop with second gear. Is it possible to wire the overdrive so it will
> >work with second gear instead of only 3rd and 4th? I have
> >others tell me it can be done but they don't know how.
> >
> >Thanks for your help!
> >
> >Ralph
> >http://www.rtpnet.org/~ev/spit
> >
> >
> >
--
"If you can't excel with talent, triumph with effort."
-- Dave Weinbaum in National Enquirer
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