Detriot Series 60 12.7 vs 14 Pros and cons

I'm driving a 2016 Cascadia Glider mid-roof with a reman 14L pre-egr Series 60 engine that was gone thru in 2016 when the glider was purchased new. The steam trail under the cab from the slobber tube was an interesting find. It's set at 500hp @ 2100rpm. Loaded at 46,000 it falls on it's face under 1,400 rpm. I run lot's of Missouri hills and I'm usually at 1,700rpm to keep up. 13 speed OD, 3.55 rears. cruises 1,500rpm at 73mph.

 

I'm driving a 2016 Cascadia Glider with a Detroit Series 60 14L reman engine non-egr 500hp @2100 rpm bought with the Glider. I immediately noticed the slobber tube due to steam coming out from under the cab. Running 13 speed o/d, 3.55 rears. turns 1500 at 73mph. With GVWR at 80,000 I run it at 1,700 -1,800 driving in the hills of Missouri. Anything below 1,400 it falls on it's face. Odometer is at 299,000 miles since it was purchased in 2016. We are a private carrier hauling only our own high dollar freight. Fuel mileage is not an issue. I've driven since 1976 with about every engine and I really don't have a favorite. With this combination I run it at whatever rpm gets me up the hills.

 

That's normal to fall on its face below 1400. They don't like to be lugged. My uncle's 500 60 anything below 1500-1550 it would fall on its face quick

 

Maybe get a k31 turbo, a lot of people say it improves power down low

 

I found the info on my motor
Certified 1999 model 6067BK60
Family XDDXH12.7EGL
500hp @2,100rpm
Rebuilt by Detroit 12/2016
Installed in 2017 Cascadia Glider
Motor/Glider has 300,000 miles as of 1/5/2021
Company truck
I can make it work well with different rpm’s

Can’t mess with the engine but appreciate all the suggestions

 

can you shoot me MR. leon contact please. I have 12.7 and I need help.