Shelby GT350 Tremec TR-3160 Six-Speed

[EditorTurner]

Top Gear
A look inside the Shelby GT350’s Tremec six-speed manual transmission
By Steve Turner

When it was announced that the new Shelby GT350 would forgo the familiar Tremec TR-6060 transmission in favor of a new gearbox, our interests were piqued. The familiar 6060 six-speed manual has proven a robust, reliable gearbox for the big-power brute that is the Shelby GT500—and even more so in aftermarket Magnum trim. However, the new Shelby is a different animal. It trades brute force for high-rpm corner carving, and reducing weight was a prime directive for the Ford Performance engineers.
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[DMotorsports]

I'm surprised nobody had commented on this yet. Great info. It sounds promising in this application. My only thought is that I wish they'd opted for a ~3.0:1 first gear ratio. It would have closed the gap with second and allowed a 0-60 pull in first.

 

[GT Premi]

You forgot about the 8250RPM red line. This thing might pull more than 60 in first.

 

[SID297]

This may make a very nice upgrade from the MT-82.

 

[tt335ci03cobra]

Great unit. Should perform excellently.

He's very accurate about gearing.

27.5" tire (305/35/19)
3.73 rear gear set
3.253 1st (55mph @ 8250rpm)
1.000 5th (182mph @ 8250rpm)
0.629 6th (280mph @ 8250rpms)

A more realistic 6th gear value is

0.629 6th (200mph @ 5750rpms)

If the gt350 produces the claimed 520hp, I could easily believe it's torque and power curves would still offer about 440hp at 5750rpms. That would be enough propulsion to reach 190mph assuming a .34 c/d with about 25ft^2 of frontal area. Mind you it's early so my maths may be off by a wide margin.

The 2006 corvette coupes could reach 187mph with a .30 c/d (iirc) on 19ft^2 area with just 400hp.

I'm going to guess the gt350 stats:

0-60: 3.7 (super sticky tires will yield sub 1.85 60fts stock IMO but needing to shift will end it's lead vs a stock trinity)

1/4: 11.9@121+

190 top speed.

 

[Tob]

My guess would be a lower top speed due to the two piece steel shaft that Ford plans on using.

 

[big reg]

Supposedly limited to 180 and ran 11.92 1/4 per last weeks interviews and questions in Texas.

 

[Willie2]

5th gear is 1:1. that's something I'll have to get used to.