ZZ13
Well-Known Member
For the 6CTA we all cruise at 80-85 percent. So 2200rpm +- 50 rpm. Most settle it down right on 2200Our Cummins 6cta 450 diamond engine has a max rpm 2600. There should be a formula that suggests max rpm for cruising. it's been suggested to me that I should just subtract 10% from max rpm of 2600 for a max cruise of 2340??