Forum Discussion
2001400ex
Jan 26, 2020Explorer
Cummins12V98 wrote:
4X, you understand all the technical stuff and how to apply it. I have always respected you for this ability. I have consistently felt my truck wouldn’t make a difference with a 10 speed just from seeing how my truck performs. That is why I am curious how the 20 RAM we’ll compare to the others.
On the test you mention I felt the GM should have destroyed the RAM with all the 10 speed hype but it didn’t.
The point of the 10 speed is getting the RPMs in the just optimal gear for whatever task you are doing.. For not towing, cruising on the freeway, that's a lower RPM for fuel economy. While towing it's a higher RPM for the right power and torque ratio. And after driving my Duramax 8,000 miles, in most situations I think it's a couple hundred RPM too low. At least for my preference.
When it comes to comparing to 6 speed Cummins, every unloaded 0-60 or quarter mile, the Duramax/Allison kills the Cummins/Aisin. However, pulling a mountain, as long as the 6 speed gets it in the right RPM range, it'll pull as good as the Duramax.
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