[Healeys] OD in 2nd gear

[Michael Salter]

I'll be very interested to hear from you how well it actually works in
practice.
Many years ago I just jumpered the gear lever switch to see what a 2nd
overdrive would be like using the 3.9/1 ratio diff.
My conclusion was that with the really broad torque curve of the 3000 the
acceleration times were not improved and engaging 2nd overdrive at full
throttle seemed to be something that the overdrive didn't like too much.
M


On Mon, Jan 25, 2021 at 4:16 PM Bob Spidell <bspidell at comcast.net> wrote:

> There's a comparison table in the PDF.
>
> On 1/25/2021 1:13 PM, Per Schoerner wrote:
> > Wouldn’t second with overdrive be the same ratio, or very close to, as
> third gear?
> >
> > Per
> >
> > Skickat från min iPhone
> >
> >> 25 jan. 2021 kl. 21:17 skrev Bob Spidell <bspidell at comcast.net>:
> >>
> >> Nice engineering! 2nd/OD would be great; I'm always over-revving in
> 2nd trying to get 'off the line' (note I have a 3.54 rear end).
> >>
> >>> On 1/24/2021 5:36 PM, Roger Grace wrote:
> >>> For interest, see enclosed my Winter project to install interlocks
> using proximity sensors to enable OD
>
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