[DeTomaso] ZF Ratios and Specs

[Stephen]

WOW - HECK FIRE - I guess I missed the boat on this one.  I have a 0.62 in
our car and it is perfect for cruising - but perhaps that is because we
built our engine for low-end torque?  NTL - I LOVE 5th GEAR!  In fact, funny
thing, revs at speed in 5th are now the same in my XKE and Panera.  Go
figure - they both love it.

Stephen Nelson


-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of Mike Drew via
DeTomaso
Sent: Wednesday, November 04, 2015 3:59 PM
To: Michael Shortt <michaelsavga at gmail.com>
Cc: detomaso at poca.com
Subject: Re: [DeTomaso] ZF Ratios and Specs

Michael,

Although the spreadsheet on Panteraplace is very useful, it will take any
value and thus give you data for gears that don't exist. GIGO. 

Lloyd Butfoy's program allows you to select from the available ratios.
Generally, the stock R&P is 4.22; some GT-5S era cars could be had with an
optional 4.00, and 3.77 is the widely popular 'Le Mans' gear set. 

A new rear end set is about $2500. Some people have gone for both the 3.77
and super-overdrive 5th gear (.642 or .620) and the combination of the two
has been a failure in most cases. Fifth then becomes too tall to be
realistically useable below 90-100 mph or so. 

What are you hoping to achieve?  Most people would be best served with the
stock 4.22 and the taller 5th, I think. 

Mike

Sent from my iPhone

On Nov 4, 2015, at 14:35, Michael Shortt <michaelsavga at gmail.com> wrote:

>   Does anybody have and will share the specs for different ratios
>   sppeds in each gear at X rpm, etc.
>   4:56
>   4:22
>   3.750
>   3.53
>   are there any others?
>   Thank you,
>   Michael
>   --
>   Michael L. Shortt
>   Savannah, Georgia
>   [1]www.michaelshortt.com
>   [2]michael at michaelshortt.com
>   912-232-9390
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