475 Detroit series 60 and rpm,s

Higher RPM's, all the way up to 1,800 if you have to. Some of these older Detroits the RPM's drop pretty slow, if you want to power shift you have to shift at a lower RPM, but that wont work when you're loaded. My 91 Ford L9000 with an 11.1 Series 60, you have to wait 1-2 seconds to shift if I take it up to 1,700 RPM which is the governed speed.

 

What a dumb question................

 

It's not a dumb question. He needs to pull his head out of his............. I haul 140,000 and have to drive my rig completely different than a guy with the same truck hauling doritos.

Hauling at 40k you can get away with shifting at 1500 but with that much weight you'll lose too much speed. These engines can take 1800 no problem, if your on a hard pull you can even bring it up to 1900 or so but I try not too.

Remember, no question is a dumb question here. That is what this forum is for. Drivers helping drivers and sometimes super truckers forget that at one point they too used to refer to their fuel tank as a gas tank.

 

If you go to a Freightliner dealer with your serial number they can give you the chart with the RPM differences between each gear. I believe you can get the information on the eaton site. A ten speed, is a flatlanders, transmission they are useless in the mountains, I am a firm believer in an 18 speed. the max torque and HP of the engine is at 1550, you want to drive below that RPM.
There is no such thing as a dumb question, there are dumb answers. Anytime someone is acting as if they are perfect, ask them for a pencil, if the eraser has been used, they made a mistake. Time for everyone to look at there pencils, my eraser is used,
Just a thought!

 

i have extensive experience running a detroit 12.7 430/470 2100 rpm engine that pulled all the way up to 2250 routinely.it was a bullet proof set up and seemed to dig the higher rpm's.it certainly ran them for extended periods.i never pulled 100,000 but stayed grossed out.

 

you can run any diesel against the governor forever.wont hurt them

 

Yes, 2,100 is fine. Again, depending on your transmission and the gap between the gears and how fast your RPMs will drop, it could be fast or slow. As stated, my 9 speed direct, with 58 MPH at 1,700 RPM in the top gear (8) i have to double clutch or wait 1-2 seconds to shift at a higher RPM. I don't have jakes, but they would be good for jake shifting.