Engine/Transmission (1998.5 - 2002) Which injector best for more MPG?

[PRout]

Wish I still got the MPGs I did back then.

Do you mean back when you had 275's & EZ?

 

[480RUGER]

Thats right. That was when it was the best.

 

[PRout]

Thanks, just wanted to be clear.

I too think 275s with a timing box of your choice is a practical combo that doesnt put the truck all out of balance. It just runs as it should have from the factory (like a mule).

 

[cArNiVaLwOrKeR]

Thats right. That was when it was the best.

IMO it still is the best, I practically gave my Don M's stage 2's away and stepped up to the 275's

The old and proven faithful combo. If I could have done it all over, Id would have stayed w/275's.



cArNiVaL

 

[Ponz]

The Bosch # is 0432193635 for the 275's. City Diesel sells them cheap with no core charge. Ponz

 

[FLynes]

... First things first do the transmission. If you can't get the power to the ground then don't waste the money bombing...

Ummmm... I have an NV5600.



I did get it rebuilt last year though.



Wife just told me that the Quadzilla MMM is a no-go... bills come first... #@$%!

 

[PRout]

Smart wife...

 

[cArNiVaLwOrKeR]

Smart wife

Smart wife...

Im seeing way too many,,, Wife calling the shots lately,



What is going on here?

 

[JesseJ]

If you want instant better mileage with no money out of pocket, take your fan off. I just did and gained 2MPG on my last trip running 75-80MPH on blended winter fuel. I'm hoping it will get even better when spring rolls around. Just a suggestion. It's free and doesn't take that long, I didn't even need to remove my fan shroud to wiggle it out the top.

 

[cArNiVaLwOrKeR]

JesseJ

Ive heard that before, but Im afraid to get in a Jam and have the truck overheat?

 

[JesseJ]

My fan used to come on a lot. Last summer I took apart the front end and used degreaser to wash out the radiator, condensor, and intercooler. It had gotten very dirty. After that I ran 82MPH down the interstate w/ the A/C on outside temp about 92*F and the fan never came on. I also pulled a trailer probably about 5000lbs. 75-80MPH A/C on same outside temp later last summer and the fan still didn't kick on. My temp gauge would come up to 190*F and just stay there, it never climbed above that. If everything is clean up front, probably the only time you will need your fan is if you're towing something heavy. If nothing else, you could at least take it off in the winter and save some mileage for a few months out of the year. I'm a mechanic so if I think I might need it in the summer, I'll just throw the fan in the back and take the tools to put it back on if neccessary.

 

[cArNiVaLwOrKeR]

I wanna do it, how long did it take to remove the fan? basically the entire job?

 

[JesseJ]

It took me all of maybe 10 minutes. You need a 1 7/16 wrench for the nut and a big pair of channellock pliers to hold the fan pulley. There is enough room between where the belt rides and the nut to grab the pulley w/ the pliers without damaging the area where the belt actually rides. It's backwards threads on my '99. I put the wrench on there, held the pulley with the pliers and had someone give the wrench a couple whacks to break it loose. Then just spin it off. I was able to wiggle the whole fan/fan clutch assy. out the top, working more towards the pass. side top corner to get it out. You may have to take the coolant overflow bottle off the pass. side of the fan shroud to get it out. I was patient and persistent enough to not have to take anything off to get it out, it may take some wiggling and manuevering and holding your tongue just right. If you don't want your threads to rust while the fan is off you could wrap them w/ some electrical tape also.

 

[FLynes]

Call me pessimistic, but it would be my luck that I would get stuck in traffic, and the truck would blow up. That fan is on there for a reason, and I'm pretty sure that the Cummins and Dodge engineers figure it serves a purpose. Gain 2MPG vs rebuild an overheated engine..... I'll err on the side of caution.



As for wives calling the shots Carny, I currently own a house in Maryland, which has been on the market for nine months now, and I'm paying for a house here in San Angelo, TX. I'm also paying for the wife's Bimmer and our move has our credit cards up there. I'm just a SSG/E-6 in the Army, and I don't make that much to begin with, so we're on a budget.



If you had seen my '05, you'd understand why the wife doesn't want me spending a ton on this one. I had every bell and whistle installed: Factory DVD player, factory Sirius, factory leather steering wheel with the radio controls, factory six-disc CD player, factory cab clearance lights (see a factory pattern?), Toff spray-in bedliner, B&W turnover gooseneck hitch, Grover air horns, Mag-Hytec transmission, front & rear diff pans, Isspro A-pillar turbo, egt and transmission gauges.



I loved my truck but for four exceptions: 1)It wasn't a long-bed, 2)It wasn't a 3500 3)It wasn't a manual and 4)It didn't have heated leather seats. Why didn't I just get a 3500 with what I wanted? Couldn't find one and didn't want to wait to have it built.



Once we get back in the financial black, I'll start saving for a truck fund again.



Can you convert a 4x2 to a 4x4? :-laf

 

[PRout]

That fan is on there for a reason, and I'm pretty sure that the Cummins and Dodge engineers figure it serves a purpose. Gain 2MPG vs rebuild an overheated engine..... I'll err on the side of caution.

Bingo! Seems kind of like a no-brainer.

 

[JesseJ]

Like I said, it was just a suggestion. I know how easy it is for me to take the fan off and on now that I've done it, and I have enough common sense to keep a close eye on the temp. gauge to keep it from overheating. At the very least, unless you live way south, you could take it off in the winter months and be pretty safe.