[DeTomaso] Stock transmission speedo output

[Thomas Tornblom]

2013-04-08 16:57, Julian Kift skrev:
> The speedos are identified as 1610 or 1210 revs/mile, as far as I'm
> aware the angle drives (VDO at least) are only marked 1:1 or 1.1:1.

Ok, I have not checked a VDO closer, but the parts catalog has an arrow 
pointing to one side of it with a label "rapporto ratio", so I think you 
are correct.

The later Borletti drives are marked 50-0806 or 50-0804, according to 
the parts catalog.

My cousin was missing the angle drive for his basket case, and bought 
one from the US, and the speedo indicated about 30% too much. After 
buying the correct Borletti drive from the factory it was OK.

>
> I went through this as an investigative process as my GT5 was way off in
> speedo reading. I found it had the speedo face changed to mph (Euro
> import) but was off until I changed angle drive.
>
> Julian
>
>  > CC: asajay at asajay.com; detomaso at poca.com
>  > From: thomas at hax.se
>  > Subject: Re: [DeTomaso] Stock transmission speedo output
>  > Date: Mon, 8 Apr 2013 08:48:29 +0200
>  > To: julian_kift at hotmail.com
>  >
>  > There are two basic types of angle drives, VDO or Borletti. Early
> cars had VDO and later cars Borletti.
>  >
>  > Each are available in two types, 1210 or 1610 revs per mile. The 1210
> drives are for kph speedos and the 1610 drives are for mph speedos.
>  >
>  > The VDO drives are marked 1210 or 1610, and the Borletti drives are
> marked 806 or 804.
>  >
>  > Thomas
>  >
>  > 8 apr 2013 kl. 01:52 skrev Julian Kift <julian_kift at hotmail.com>:
>  >
>  > > Speedo's are stamped on the rear either 1610 or 1210 rev/mile,
> which you have will also depend on which angle drive your came with.
> Unfortunately I do not know what goes with which year.
>  > > Is this what you wanted?
>  > > Julian
>  > >
>  > >> Date: Sun, 7 Apr 2013 12:28:11 -0700
>  > >> From: asajay at asajay.com
>  > >> To: detomaso at poca.com
>  > >> Subject: [DeTomaso] Stock transmission speedo output
>  > >>
>  > >> All,
>  > >> Assuming a stock 1973 ZF-2 and stock angle drive speedo adapter,
> what is
>  > >> the ratio of the speedo output to the axle output on a Pantera?
>  > >>
>  > >> i.e. the rear wheel goes around once and the speedo output goes
> around
>  > >> <how many times>
>  > >>
>  > >>
>  > >> Where can I find that information?
>  > >> Asa
>  > >>
>  > >> Asa Jay Laughton, MSgt, USAFR, Retired
>  > >> & Shelley Marie
>  > >> Spokane, WA
>  > >> ******************************
>  > >> http://www.racingagainstautism.com
>  > >> http://www.teampanteraracing.com
>  > >>
>  > >>
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