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The dually go Bye Bye.....

I would not expect that kind of mileage out of the 600 Cummins. Granted I have an auto version 2500 QC 4x4. Out on the open road with no load I am getting 18ish. That is 70 MPH interstate driving with very little grades. My city MPG really sucks ass at 12-13. I get about 10-12 towing. I have 12K on the clock since I picked it up on Feb. 17. If you do manage to get that good of mileage out of the 6 speed, I will damn sure kick my wife in the head for talking me into getting an auto so she could drive it /forums/images/graemlins/dunno.gif.
 
I should have read this before my last post. If you are getting that kind of mileage I should take my junk in and get it flashed or something. This pig in my driveway is a diesel fuel hog! I love this damn truck but my lord it sure is a thirsty beeotch /forums/images/graemlins/eek.gif
 
my mileage dealy on the cieling just turned to 12 mpg.
it has been slowly going up since i got it starting at 9 mpg. its still going up and its still better than the dually. im running betweehn 75 and 80 on the highway so i should get a lil less than you guys. i also been told that it needs about 3k miles to get mileage up to 18's, so till then i guess ill be fine with it. ethier way, better than the dually already. and once i finish this tank ill do the math and check the computers math.

as for the complaint about the lack of storage space i found the compartments under the back seats... he he, so im a lil slow. but oh well.

and as for the mirrors, i paid for the towing mirrors, its on the build sheet and they ar enot installed. the dealership is notifying crystler and im getting the towing mirrors installed free... like it should be.

all i can say is with the 6 speed 3rd gear is the gear i tend to start out in and is the money gear for getting going unloaded anyway. turbo diesels RCOCK! once the turbo spools all the way up get outta da way!

anyone know the boost on the 600's?
grant
 
Nonesuch, I have heard a lot of peps, that get the mileage I get right off the showroom floor, but I have also heard people that get your mileage right off the showroom floor.

As near as I can tell there is really no rhyme of reason for it /forums/images/graemlins/dunno.gif I was going to take my truck in and have it reflashed due to slow take off, but what I put it tow haul mode, it goes away? So I am not sure what I am going to do about it yet.

Have you looked into any guages yet? I love the set up I did with the tranny temp. It rocks /forums/images/graemlins/woot.gif Only set me back $200. Not bad since $80 of it was labor. It has a totally factory look. I hope DC figures this out and put them in at the factory.

The more I think about it that more I wish I would have gotten the 6 speed. But since my wife is only auto certified, and we need to atleast be able to consider seating six. that wasn't really an option. I think I would be a lot happier towing heavy loads with the manual

Sevety4Blazer, The mileage on the ceiling is never correct. Mine say 14.8, but I hand calculate it and it is 16 to 17.

On the mirrors, make sure they hook you up with the heated mirrors. If it should of had them, plus you paid extra to get them, then make sure you get to good ones.

My buddy at work has the 6 speed and I think he usually starts out in 2nd, but I think it is all about preference.

As far as boost, I am not sure, but a lot of guys talk that a gauge that goes up to 30 PSI is fine until you start make mods, then you really should get one that reads up to 60 PSI. So that may not be much help, but I can't see stock spooling the turbo much into the 20's.

I love the pushing you into the seat feel, when the turbo kicks in. /forums/images/graemlins/peace.gif
 
I haven't bought any gauges yet. I plan to put the color matched single pod A-Piller cover out of the dogde sport truck thingy into it. I want to run one of those fancy single gauges that gives you boost, EGT, and Trans temp like Banks sells with their Six Gun. I will bomb my truck later down the road but my first mods will be to the auto tranny.
 
whats the optimal cruise RPM on the 600?

i was looking into the bully dog 5 inch exhaust setup, from what i gather they make it so you can remove the cat fairley easily. that should be a lot less restrictive im thinking. but i want a stack on my rig. they are just sexy i think. pluss im not putting any money into this thing just yet.

it got hit with 2 paintballs today at the paint ball park. i must say hot pink stand out big time on silver....
Grant
 
If you are going to BOMB the Cummins, you have to add gauges, it's a matter of fact. Make it your first modification. Just make sure when you add the EGT probe you put it BEFORE the turbo. Make sure that when you add the probe you don't get any of the shavings from drilling the hole into the turbo. Read the posts on DTR or Turbo Registry on how to add the probe.

If you are going to BOMB the automatic, make sure you have the trans reworked to allow for the HP, auto's and chips don't like each other, in the high HP settings. If you are running the stick, you will be ok up to about 325 HP, after that, you have to swap in a HD Clutch pack, the same thing, the high HP setting will blow out the stock clutches.

The Cummins is the @hit to BOMB, but like Russ said, it cost us more to make the necessary mods to handle the HP. Be very carefull when BOMBing the Cummins, DC will void all warranty when they find out that you have BOMBED the truck, and they will know! The new trucks computers leave a leftover code and DC will know you have modified the trucks. Even if you remove the fueling box.

They have gotten very smart due to the warranty issues.

These trucks rock, I would not trade mine for anything, other than a newer one. Everyone know the Cummins is the $hit when it come to towing and such.

Congradulations, and enjoy, just follow the breakin guidelines and start hanging out on some of the Dodge Diesel Boards.

Rob
 
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If you are running the stick, you will be ok up to about 325 HP

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/forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif
yer a funny guy rob... MY cummins has 325 HP from the factory... /forums/images/graemlins/thumb.gif /forums/images/graemlins/thumb.gif

thanks for the info man. as always you have done your homework. i didnt know about where the EGT sensor goes. now i do. im not going to be doing any mods to it any time soon. i dont have the cash. all the money i get while on deployment will be going straight to the truck. it HAS to be paid off before i get out of the corps.
Grant
 
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