Hello, Thanks for the info and reply!
I went to David Kee top loader pages and found this:
A black drive gear with 7 teeth pn C4DZ-17285A NOT for Tiger
A pink gear with 6 Teeth pn C5ZZ-17285A NOT for tiger
A Yellow gear with 7 Teeth pn DK296-YSG FOR Tiger
A Brown gear with 8 teeth pn DK286-BSG FOT Tiger
There are no 6T drive gears for the top loader, at least available anyway.
With the plethora of driven gears and a pair of drive gears and knowing the
dire diameter for the revolutions per mile calculation then one should be able
to come pretty dang close to reality I think. That 8=980 revs per mile is a
high number due to the dinky OEM tire size sold with the cars. I think the
overall diameter of the Dunlop 5.90 tires was 20.5 inches which would be about
right for the 980 res per mile. Tires today are larger and a 205 x 15 is 23
inches or so in diameter and that results in a lower of revs per mile to run
the speedo. So, the drive and driven gears need to be selected to get that
tire back to a pseudo 980 revs per mile. And the rear gear needs to be added
in as well if it has been changed. Not a terrifically involved process but
stuff has to be accounted for in order to get a good reading speedo. Final
fiddling can be achieved internally to the speedo although I have never ever
Or purchase a GPS unit, lol. Plug and play.... add power, turn on....
From: firstname.lastname@example.org [mailto:email@example.com]
Sent: Tuesday, December 6, 2016 6:09 AM
To: Larry Mayfield <firstname.lastname@example.org>
Cc: Larry Mayfield via Tigers <email@example.com>
Subject: Re: [Tigers] Speed Driven Gear Questions have...
I believe the Tiger is 6 teeth. 7 is the other common size.
Other useful info is the Tiger speedo takes 980 revolutions to rack up 1 mile
on the odometer. Its printed on the face of the speedo in a really small font.
---- Larry Mayfield via Tigers <firstname.lastname@example.org> wrote:
> sparked one from me. What is the number of teeth on the drive gear itself?
> The one that is on the actual output shaft of the transmission? I
> suspect there can be a couple of them that could be used. With that
> gear count and the driven gears available it becomes fairly easy to
> determine which speedo cable driven gear is best for the car
> parameters, like tire size, final drive rations etc.
> Worlds Fastest Sunbeam, period.
> 204.913 mph flying mile
> 210.779 mph exit (not top) speed