Forum Discussion
rhagfo
Jan 19, 2015Explorer III
Hannibal wrote:
So your truck idles up the grades at the speed limit towing 1k lbs more than a new 6.7L Cummins powered Ram that can only muster 44 mph foot to the floor at 2800rpm? Once moving, overall gear ratio is what puts the power to the wheels and 2800rpm foot to floor 44mph is using all the gear reduction it can use regardless of rear end ratio. The 6.7L Cummins was maxed out while your '01 idles by at the speed limit in O/D towing 1k lbs more. I'm impressed!
Not what I said.
What I said is;
"well my little 6 at LESS than 300 HP does a great job of moving 19,500# up and down hills at the speed limit, at no more than 2,200 rpm's." The only unclear part might be the 19,500# is my GCVW, while towing. Yes I have a 50 Hp chip, so at most 285 HP.
So my point is that I can move about 11,000# trailer, with at most 285 HP, and 3.55 gears, that 6.7 Ram with 100 more HP is likely running too tall a gear for the load.
I do need to drop to 4th on my 5speed to climb those grades.
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