Oh. We would need to run between 3,000 and 3,300 rpm to get maximum torque. Then I look at the Cummins chart and see you are over 2,200 to get into the max torque range. That's different than I remember.
We normally run our Eco engines in the 1,600 - 2,000 rpm range. If that chart is correct we are getting almost no torque and won't until we add another 1,000 rpm.
That Cummins thing also bothers me. I seem to remember my Cummins had the most torque in the 1,800 to 2,300 range. That's way different that that chart.
Wonder if it's right? Just seems like a rather high rpm range to me.
The problem with the power dyno is they cannot floor it in gear without it downshifting into another gear.
So they roll into the throttle till about 3000 RPM then floor it.
The Fiat dyno is more accurate because they can use there software to not allow the motor to downshift when testing.
I did lots of dyno on my Hemi at that was alwas the problem, but luckily on a gas motor low end tq and HP is not there anyway so you did not need a low RPM number.
1 - 17 of 17 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
A forum community dedicated to Ram 1500 diesel owners and enthusiasts. Come join the discussion about performance, ecodiesel, towing capacity, reviews, modifications, classifieds, troubleshooting, maintenance, and more!