This formula assumes a 1 to 1 output shaft... if you have an overdrive you
have to adjust your gear ratio accordingly.... Keith
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> From: Paul A Asgeirsson <pasgeirsson@juno.com>
> To: spritenut@Exit109.com
> Cc: Lancer7676@aol.com; kturk@ala.net; mikkel@isa.dknet.dk;
spridgets@autox.team.net
> Subject: Re: rpm -> speed calculation
> Date: Saturday, July 10, 1999 7:37 PM
>
> On all mechanical speedos that have the drive from the transmission, it's
> taken off the output shaft, which is the same as the driveshaft speed.
> Makes no diference what gear it's in.
>
> Paul
> PAsgeirsson@juno.com
>
> On Sat, 10 Jul 1999 21:44:03 -0400 Frank Clarici <spritenut@Exit109.com>
> writes:
> >Lancer7676@aol.com wrote:
> >
> >>
> >> Wouldnt the transmission ratio fit in there somewhere? Seems like
> >5th gear
> >> with a 210 tranny would give you a different read than 4th gear with
> >a rib
> >> case.
> >
> >I'm not sure here but I would think the tranny makes no difference as
> >long as you have the speedo drive from said tranny in said car.
> >I mean, my 5 speed shows X mph in 4th and only the revs drop when I
> >shift to 5th.
> >Speedo stays the same.
> >I am not saying a different tranny in the car does not make for a
> >differnt reading, just that no matter what gear you are in, the speedo
> >stays the same unless you step on the gas.
> >
> >
> >--
> >Frank Clarici
> >Toms River, NJ
> >Bugeye Sprite
> >67 Sprite
> >59 A40
> >http://www.exit109.com/~spritenut/
>
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