How does a 17% increase in dynamic friction coefficient for the new G3 material correlate to increased max torque? Does max torque also go up 17%? (I would think so.)
What about longevity? Same, higher or lower as OEM? Any tests to support this conclusion? For example, do an apples to apples comparison of an OEM versus a G3 material transmission over 10K miles: tear down and inspect, etc.
Jeff,
The 17% increase in friction coefficient combined with the increase in friction plates in each drum correlates to a mathematical clamping force increase of roughly 30% over the stock configuration. This is a bit on the conservative side to protect the engineering factor of safety we have built in for increased clutch longevity. As a result, we have rated this upgrade for ~700wtq.
Regarding longevity, the Durability graph shows the side-by-side comparison of the G3 to the OEM friction material. You can clearly see that this is where the G3 really shines compared to the stock material. This mainly has to do with the carbon component of the material, which has excellent thermal rejection properties.
The SAE J2487 Friction Test is an industrial standard testing battery that tests the Dynamic Friction Coefficient, Durability and Shift Quality of friction materials. I have plotted the G3 vs the OEM material testing results in all 3 tests to clearly show the improvements.
I hope that answers your questions.