[Diy_efi] Stepper Motor to drive mechaical speedo

jimster1 jimster1
Sat Oct 20 06:44:13 UTC 2012


Normally it's going to be 1000 turns\mile.  Dials out to be 60MPH as well.
Some British speedos are different, but are usually marked in tiny script on
the face.
Jim

-----Original Message-----
From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org] On
Behalf Of jayjunk at laserpubs
Sent: Friday, October 19, 2012 9:23 PM
To: diy_efi at diy-efi.org
Subject: Re: [Diy_efi] Stepper Motor to drive mechaical speedo

Ok - is there a standard revs/mile for a speedometer/odometer?
The only thing I found so far is for a Vincent motorcycle!
(1600 rev/mile)

cheers...

On 10/19/2012 5:04 PM, jayjunk at laserpubs wrote:
> Funny- I was going through my garage and found my stash of gauges.
> I found a 120 mph mechanical speedo (SW style) that will be just fine
> for my mutant Corvair.
> Now I need to look around for a DC motor with enough grunt to drive the
> speedo!
>
> cheers
> Jay
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