[DMCForum] Re: Porsche Tranny
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[DMCForum] Re: Porsche Tranny




Marc,
     The 6-speeds are geared a bit higher (I think that's right)
meaning more RPM's per MPH to take advantage of the 3.5L and 3.8L flat
6's ability to rev and their higher RPM power band.  The 901/915 boxes
are geared a bit wider and take advantage of the broader torque range.
I learned this in my quest to transplant an LT-1.  With 300 HP and
325 lb.-ft. of torque I've been told that 1st gear is all but
unusuable.  Although, 0.6:1 6th gear is a great cruiser....:)  One of
the best people to talk with about the Porsche gearboxes (if you
haven't already) is Scott at Renegade Hybrids.  I think Duke worked
with them as well.

Let me know if you need any info,
Matthew

--- In DMCForum@xxxxxxxxxxxxxxx, Marc Levy <malevy_nj@xxxx> wrote:
> It looks like the 915's can be rebuilt to take 500hp
> if need be..
>
> The engine is stock 260hp, so I can maybe tune it up
> to 300hp.  A run of the mill 915 will be OK for that.
> If I decide to supercharge it or something crazy, I
> can always beef up the 915 at a later date. (is the
> 915 LSD?, can it be made LSD?)
>
> I was close to my budget on this project, but if I
> take a loss on my engine, trans, the money I paid this
> guy already for the custom bell housing, AND the
> insurance on the car for the past 3 years it has not
> moved out of the garage, my budget it blown.  If I
> ignore the "loss" on this guy disappearing, then I'd
> still like to keep the project in the 5-6K range.
>
> Dammit, I wish this guy would just let me come pick up
> my crap!  The bell housing was almost done last time I
> saw it, and would need very little to complete it.




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