Quote:
Originally Posted by Phansm72
I got the M-7003-z T-5
These Super-Duty T-5 transmissions from Ford Racing are world class.
Features:
* 330 ft./lbs. torque capacity
* Double-moly 2nd speed, 3rd speed and countershaft cluster gears
* Carbon-fiber 3-4 blocker rings
* Improved synchronizers and bearings
* 1-1/16 in. diameter 10-tooth input spline
* 28-tooth output spline
* 7-tooth speedometer drive gear
* Cobra-style pocket bearing
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Yeah, the Z versions are upgraded, much better than my box-stock WC T-5. Much better metallurgy in the gears, too.
I'd still be worried about only 330 ft./lbs capacity. That Coyote Engine is a real spinner (7K RPMs on a regular basis!!!), it might take only one side-stepping of the clutch to shell the tranny if you have real sticky tires.
However, having said that, I have 11" wide BF Goodrichs on the rear wheels of my Cobra with a Mustang GT T-5 transmissions. I do not sidestep the clutch, but with these things being so light the rear tires do break loose quite easily, so a bit of care with the right foot will ensure that yours lasts a lifetime. I have put almost 5,000 miles on mine since I bought it, broke a clutch cable, but other than that have never had a moment's problem from the clutch or the transmission...but, those BF Goodrich tires are known for their poor traction and mine were manufactured in year 2,000 according to the code on the tire (a front blew out, and the rules at Discount Tire prohibited the techs from even checking the pressure in my remaining 3 tires, they were so old), so they are probably a bit hard from age, reducing the traction even more.
Just curious...which OD does your Z-rated have? IIRC it was a .82, not the .63 my T-5 has. I like my .63, I am turning about 2,000 RPM at 70 MPH, and because my engine is stock 5.0 HO (I think), it doesn't buck at that speed. Get it up to 80 MPH and it's firmly in it's favorite RPM range, cruising effortlessly at 2,300 RPM. That Coyote engine has such a broad torque curve you ought to be OK with either OD gear...just curious, rear gear ratio?
Sounds like a real burner you are building there!!!!
Cheers! Carry on......
Dugly
