[DeTomaso] Stock transmission speedo output

Tomas Gunnarsson guson at home.se
Mon Apr 8 02:36:43 EDT 2013


No, you have to divide the 2 by the final gearing. Speedo does one turn,
halfshafts do 1/2.11 (~0.47) turn. The speedo ratio indicated is
relative to the output shaft of the gearbox, not the output shafts to
the wheels. Sorry for the confusion.
 
Tomas

<-----Ursprungligt Meddelande----->
From: Asa Jay Laughton [asajay at asajay.com]
Sent: 8/4/2013 2:21:36 AM
To: detomaso at poca.com
Subject: Re: [DeTomaso] Stock transmission speedo output

Here is a photo of the ID plate on my ZF:
http://www.teampanteraracing.com/index.php?option=com_g2bridge&view=gall
ery&Itemid=57&g2_itemId=2158&g2_imageViewsIndex=1
<http://www.teampanteraracing.com/index.php?option=com_g2bridge&view=gal
lery&Itemid=57&g2_itemId=2158&g2_imageViewsIndex=1> 

If I understand Thomas correctly, the speedo output goes full circle 
-once- at the point the output shaft (half-shaft going to wheels) goes 
around twice.

Put more simply:
Speedo shaft 1 turn = Half-shaft 2 turns

Does that sound correct?
Asa

Asa Jay Laughton, MSgt, USAFR, Retired
& Shelley Marie
Spokane, WA
******************************
http://www.racingagainstautism.com <http://www.racingagainstautism.com/>
http://www.teampanteraracing.com <http://www.teampanteraracing.com/> 
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On 4/7/2013 3:12 PM, Tomas Gunnarsson wrote:
> I hope I get this right now but the tacho drive gearing is indicated
on
> the ID plate. It should be 2.0. If I'm right that means that the
output
> shaft of the gearbox turns 2 turns per tacho output turn. So for one
> tacho out the rear wheels make 2/4.22 turns.
>
> Tomas
>
> <-----Ursprungligt Meddelande----->
> From: Asa Jay Laughton [asajay at asajay.com]
> Sent: 7/4/2013 9:28:46 PM
> 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.racingagainstautism.com/>
<http://www.racingagainstautism.com%3chttp//www.racingagainstautism.com/
%3E> 
> http://www.teampanteraracing.com<http://www.teampanteraracing.com/>
<http://www.teampanteraracing.com%3chttp//www.teampanteraracing.com/%3E>
>
>
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