Quote:
Originally Posted by jamesrxx951
Thanks for that correction then. I was just going by that data on the Cummins site where it stated 3K for the fuel cut off. But it can definitely be a misprint. I've driven a few Duramax but not when towing. The power seemed more in the higher RPM band but again that was with no load. Been meaning to test drive a new Ram to compare the "feeling" to the others. But towing is really what all 3 diesels are designed for.
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James
You may have read the Cummins site correctly as there are different versions of the same engine. I have an 07 HR Neptune that has a 5.9 ISB Cummins with exact power ratings as that year dodge truck but it is governed to 2600 rpm. Not sure what the difference is, probably just in the computer programming for each engine. I have turned the Rv engine over 2600 though using exhaust brake.
Chad