[Fot] Gear ratios?

Kas Kastner kaskastner at gmail.com
Thu Jan 11 14:53:31 MST 2018


This chart may not be of much use if you have an assembled box but handy if
you can count all the gear teeth. See the attachment.

*Never be beaten by equipment.*

On Wed, Jan 10, 2018 at 2:41 PM, Bud R via Fot <fot at autox.team.net> wrote:

> Listerati,
>
> I’ve been trying to figure out what gear ratios I have in the gearbox that
> came with my race car but don’t know how to  do the proper math. The PO
> told me it was a close ratio GT6 gearbox but one never knows until you
> actual check.
>
> I at least took some “data” while it was out so I’m hoping someone can
> tell me how to figure out the gear ratios and if it is indeed close ratio
> GT6 gears or whatever it might be.
>
> When the input shaft was turned one full rotation the output shaft turned
> the following amount.
>
> 1st gear it turned 1/4 turn
> 2nd gear it  turned 1 1/8 turns
> 3rd gear it turned 1 5/8 turns
> 4th gear it turned 1 3/4 turns
>
> Any help on how I should do the math is appreciated.
>
> Also does anyone know what happened to the minty lamb gearspeed website?
> It does not appear to be up any longer and I used to play with it a lot.
> Very useful site that now appears gone.  Waaahhhh.
>
> Thanks
> Bud Rolofson
>
> Extreme Parts Racing (more than just a haircut)
>
> 71TR6 CC57365 (Good 6)
> 71 Spitfire MK IV Race Car #3
> 69 Spitfire MK III (back up FE engine/dinghy car)
> 93 Minnie Winnie Race Support Vehicle
> 77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)
>
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>
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