What Pre Emission Engines Do Owner Operators Like The Most

Do you mean is the c13 set to 380 hp? Cause no. Its the 470hp twin turbskie acert.

Ill say this. If you have never sat behind the wheel and actually grabbed gears, then you need to stop talking as if you know how to drive a truck because you really dont. If you want to let people know of observations from yur time riding in trucks then thats fine. But to reiterate, you cannot make a blankets statement. I would love to put you behind the wheel of the truck i drive and let you run fully loaded down a gravel road and get suprised by a patch of fresh gravel going up it and have to drop a couple gears faster then a fat kid going down on a seesaw.

If your arent willing to listen, then you dont want to learn. You most likely just started this thread to chime in about what you think you know or what you may actually know about engine stats or models that anyone with fingers can find on google.

 

I mean that most anyone can be taught to drive a stickshift semi, whether that be by floatin gears or double clutchin, but that doesnt mean they can manage a truck when all yur speed is sucked up in a matter of 2 seconds. Rolling on concrete is easy. Yur truck will carry momentum so that when you are downshifting you can tickle the gear while playin with yur rpms and not ruin any teeth. Gravel sucks up speed fast. New gravel sucks up speed even faster. Take for instance my boss. When he bought the truck the salesman told him to upshift at 14 and downshift at 1100. Similar to the pattern you originally stated. Now that works fine on flat ground downshifting and fine upshifting till round gear 7. But its a problem when someone takes it to heart as the shifting gospel. If you run up a hill on new gravel and wait for your rpms to drop to 1100 before trying to drop a gear you will, in all honesty, come to a complete stop as soon as you pull out of that gear. Thats ths difference between a driver, and a driver. Sometimes i gotta pull out kf a gear at 1400 and the next gear when it hits, even if i make the motor bark, at 1300. You have taken gears in a truck and thats good, but this is why im so adament about you trying to pass a blanket statement on what rpms to shift at.

 

Not much.

 

I never said you werent right about some trucks being able to shift and drive that way, i said you cant make a blanket statement. You said that cats can make good fuel mileage if you shift like this. And i still meant flat asphalt when i said i dont shift up at 1400. With this truck i take her to 1650 for the last 3 gears. Thats just how this truck drives.

 

From what i have read my peak torque is 1250 and peak power is 2150. What i say next is my opinion and the mechanic experience i have, mixed with advice from experienced truckers on this forum. Because i have only 10 gears with 400 rpms between each i choose to progressively shift up when accelerating. In gear 1 thru 5 (6 when on the flats) i upshift at 14 to 1500. 6 to 7 is 1550, 7 to 8 and so on is 16 or 1650. Again, this is why i am irritated by a blanket statement. If i shift up at 1400 from gears 8 to 10 the truck can and will eventually get back the boost it needs, BUT not without luggin and chuggin, i.e. not efficiently burning fuel. I have never driven a 13 or higher gearbox but i would think that there is 200 between gears when splitting a main gear. If i had a 13 speed or higher then i would shift up at 1400 or 1500 all the time because i would stay above my peak torque mark and within my power range, thus not burning more fuel then necisary. This is why i say your blanket statement about fuel economy in cats is idiotic, IMO