Pre EGR overrated ?

That doesn't sound too bad for what you have. The gear ratio on your truck should be on a plate in the drivers door or if nothing else and you're up to it crawl under there and check the tag on an axle. I saw a LS-BCO once driving an ex-Rhoel condo sleeper truck (so likely one from their van fleet) this in VA off 81 in a truck stop - and he was not real happy with the way it pulled in the hills with those 2:64's and a 10sp direct. But it's only a 400 maybe 450hp truck and he did get good fuel mileage out of it. Admittedly, not being able to split gears sucks in the hills regardless what rears a truck may have.

 

Yeah the Detroit 60 series are set to 430hp, maxxforce 455hp, dd15 are set to 435. Not sure how correct that is but that's what mechanic told me at our terminal I'm marshfield.

Ethan

 

Fleets will usually set a variety of parameters in the ECM so that the engine will not really do what it is supposed to. But then, given the quality of many drivers, if the fleets opened them up, there would be a lot of blown up trucks.

My 60 is basically opened up across the board on the ECM, turning the 500 hp and 1650 torque is was designed to do. But I also put on a better exhaust manifold, turbo, high flow mufflers, and improved intake. something a fleet wouldn't even consider. So it does the job it was intented to do and gets pretty decent mpg as a reward. If one gets a fleet truck, it makes sense to put in on the diag computer and get the parameters set back to what they were supposed to be. Roehl would be no different than any other fleet for messing with the ECM.

 

yeah they choke these trucks down. But I can see why, I mean they hire students so it makes sense not to give someone brand new an open truck. I just wish after your year mark they'd open the truck a little for you.


On another note, saw a cascadia lease purchase driver Thursday at our gary terminal. I don't see how their van l/o's make enough money to cover that brand new truck at 90-95cpm....

Ethan

 

Hey cowpie. i've been following your threads through the decision process to the final product. i really like what i've read. especially the mpgs. i'm about a year out from buying another truck. i've got a '99 century with s60 430/500. it has 1.4 million on it and i had the engine overhauled down to the crankshaft bearings at around 850k. its been very good on maintenance now that i'm back to dry van from food grade tanker, it gets pretty good mileage. 7ish.
would you be willing to share your specsheet? i think 8 mpg is definitely worth going the glider route over the used truck market. with a 10+ year time horizon the fuel would more than make up the difference in price, plus i'd get to build exactly what i wanted, and lower maintenance cost to boot.

you've made a good case for seeing harrison over fitzgerald's, and i just wondered if you'd give me the name of your salesman and info on your intake/exhaust mods, aluminum rears, direct drive etc. thanks, alan

 

PM sent with info

 

I have a 04 Columbia with the EGR and have had no problems since I turned the EGR off. Engine runs cooler. better mpg, more power. Yes it can be done, I did it, and it works. Search my other posts, I tell how it was done.

 

hey, i got the pm you sent but the email address you sent came back undeliverable. i can't pm you yet because of my low count so maybe try again?
thanks, alan

 

Sent again. Spell checker changed the email address when I wasn't looking!