Quote:
Originally Posted by d9m13n
Thanks for the update on the 00A, especially with the motorsport feedback. Keep us updated with your findings when you drop it out and take a look.
As far as the weirdness that is gearbox compatibility on these kits, Ive got some info but not much. Still doing some research into it to see what the differences are.
These are the ratios for the diesel boxes:
1st gear: 5,24:1
2nd gear: 2,92:1
3rd gear: 1,82:1
4th gear: 1,27:1
5th gear: 1,00:1
And the ratios for the non-diesel boxes:
1 2 3 4 5
4.21 2.49 1.67 1.24 1.0
(sorry for the weird copy-paste formatting for both)
As you can see, the diesel boxes have much shorter gearing. Did some calculating and that left me at 62mph in 5th at 7000rpm (3.5 rear end). 1st through 3rd would pretty much be a blitz and the highway would, well, suck.
I dont see why the rest of the zf family of 5 speeds from the e36/e46 generations would not work and are not mentioned as compatible by either abc clutch or PMC. From my research, it seems that they share the same 10 spline input shaft and bellhousing bolt pattern. Possibly they have lower torque ratings and neither adapter company recommends them as these are mainly drivetrain solutions for very high hp/tq applications? I can email both companies to see I suppose. Would be helpful to have cheap options on hand as spares, would also be helpful for either company if they were to move into the us market.
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Definitely not torque limited. The 5 speed ZF is known to be more robust than the 6 speed E46 M3 and is preferred by people who road race E36/E46 chassis (which is what I predominantly race against).
All the transmissions used on the M5x/S5x family of engines should all bolt up to the same.
Sorry if I'm missing something in your thread, but aren't these basically what we're talking about?:
http://www.pmcmotorsport.com/gearbox...7-gearbox.html
http://www.pmcmotorsport.com/flywhee...7-gearbox.html