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Old 05-23-2011, 07:09 AM   #235
thePill
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Drives: '11 Mustang GT Premium
Join Date: Oct 2010
Location: Kaiserslauthern, Germany
Posts: 1,268
Anyway, that was a nice little intermission break away from the Z28 but we need to get back to work.

I have been looking into transmissions that could possibly be matched with a Hi-Po LS3 (LS3R). The best transmission would have to be the Z06's TR6060 MM6. The MM6 has a torque rating of 470lb ft at 4000lbs and only weighs 121lbs wet (single clutch only). The weight alone (121lbs) is incredible, I thought that the TR6060 M10 was the lightest at 149lbs(Edit: 146lbs) but I was way off. Using the MM6 over the M10 is a 28lbs weight savings and that is very, very good. There is a problem with the weight though, 4000lbs is definitely a generic standard given to Corvette transmissions. The GVWR of the Camaro is about 4800lbs and there is the problem. Tremec could revalidate the transmission at 4800lbs but the torque rating would be lower, by how much I don't know. Just some quick math brings the figure down to 430tq at 4800lbs... GM could reduce the cargo capacity from 732lbs to 300-400lbs and that would solve that or... find another transmission which would suck.

Here are the gear ratios
1st: 2.66 (This would have to be changed, the 3.73's would feel like 2.73s)
2nd: 1.78
3rd: 1.30
4th: 1.00
5th: 0.74 (We really need to find a transmission with only one overdrive, two overdrives in a performance vehicle is nonsense. It lowers the entire gear ratio spread throughout the gears...
6th: 0.50

Looks like a great transmission with the exception of the maximum weight capacity, 1st gear ratio and the extra overdrive.

Last edited by thePill; 05-23-2011 at 03:09 PM.
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