who makes the best diesel truck?

[spacemule]

Back it up. How far can he piss?

Twice, no, three times as far as your dog.

 

[eric_271]

Twice, no, three times as far as your dog.

Is this on a 10 degree incline? LOL

 

[ropensaddle]

I would like to say I would put my Mack up against any diesel
in longevity. Too bad they don't build a pickup

 

[newby79]

You are dumber? Glad you admit it. The detuned cummins we are talking about here is superior to the duramax in every way. The last pull off I read about the duramax burnt up and caught the truck on fire. Besides that the cummins is making the same hp and tq on 2 less cylinders then the duramax. Like I said the duramax is a decent engine but I'm not the one here that thinks its in the same class as the cummins. You probly think dodge won't put some of the tune back in the cummins to change who has more tq, and hp. When I open the hood on a chevy truck with the duramax all I can say is massive boat anchor. You need to do a good read on diesel engine design. The 5.9 Cummins can be ordered at 6 and 700 hp from the cummins factory and does all the time for buses fire engines and trucks. Can you see where I'm going with this yet?

Ya you better recheck that becasue the only 600 hp motor you are going to order from cummins for on Highway use is the ISX 600 which is not even close to 5.9 or a 6.7 more like 14 liters. I used to drive truck the rig I drove had a cummins n14 redhead and it was only rated at 475 hp I guess I should have got the company to put a 5.9 liter in it. Just to drive the point home I called a buddy of mine who works for cummins He works on the motorhomes and buses that come in and he states that 325 hp is the highest hp rating on the 5.9 that you can order from cummins. He went on to say that the only engine they offer for on road use that has 600 hp is the isx600. So go ahead and call cummins and order your 700 hp 5.9 liter. I think you will hear a lot of laughter on the other end.

 

[eric_271]

Ya you better recheck that becasue the only 600 hp motor you are going to order from cummins for on Highway use is the ISX 600 which is not even close to 5.9 or a 6.7 more like 14 liters. I used to drive truck the rig I drove had a cummins n14 redhead and it was only rated at 475 hp I guess I should have got the company to put a 5.9 liter in it. Just to drive the point home I called a buddy of mine who works for cummins He works on the motorhomes and buses that come in and he states that 325 hp is the highest hp rating on the 5.9 that you can order from cummins. He went on to say that the only engine they offer for on road use that has 600 hp is the isx600. So go ahead and call cummins and order your 700 hp 5.9 liter. I think you will hear a lot of laughter on the other end.

My mistake. Its been a while since I read about the 600 hp cummins engine. Thought it was the 5.9. Regardless, the duramax ''Isuzu'', is not in the same class as the cummins.

 

[Peacock]

My mistake. Its been a while since I read about the 600 hp cummins engine. Thought it was the 5.9. Regardless, the duramax ''Isuzu'', is not in the same class as the cummins.

Only the original Duramax is of Isuzu design.

Recently, the Duramax has been spanking the Cummins in stock pulling competitions.

From my experience here at the dealer I'd say the Cummins is a bit overrated. From junk pumps and leaking blocks on the 24v engines to bad injectors on the common rails. We are currently replacing the 2nd engine in as many months for dropping the valve seat on cyl. 6. Both common rails. The head is cast in Mexico.

 

[Freakingstang]

Ya you better recheck that becasue the only 600 hp motor you are going to order from cummins for on Highway use is the ISX 600 which is not even close to 5.9 or a 6.7 more like 14 liters. I used to drive truck the rig I drove had a cummins n14 redhead and it was only rated at 475 hp I guess I should have got the company to put a 5.9 liter in it. Just to drive the point home I called a buddy of mine who works for cummins He works on the motorhomes and buses that come in and he states that 325 hp is the highest hp rating on the 5.9 that you can order from cummins. He went on to say that the only engine they offer for on road use that has 600 hp is the isx600. So go ahead and call cummins and order your 700 hp 5.9 liter. I think you will hear a lot of laughter on the other end.

425 for an onroad N-14 is pretty healthy. Most were 375 or 425. The offroad setup yields about 525.

I'd really like to put one of the C series (8.3) off roads into a truck, of course, it is a ways off from 600.

The 600 # that a lot of people are getting hung up on is somewhat available through aftermarket goodies, but not from cummins. We are talking differant programming, injectors, pumps, turbos, down tubes, exhaust, etc, not to mention inflated numbers from internet companies. Then the tranny becomes the weak link and so on down the line.

 

[Freakingstang]

Only the original Duramax is of Isuzu design.

Recently, the Duramax has been spanking the Cummins in stock pulling competitions.

From my experience here at the dealer I'd say the Cummins is a bit overrated. From junk pumps and leaking blocks on the 24v engines to bad injectors on the common rails. We are currently replacing the 2nd engine in as many months for dropping the valve seat on cyl. 6. Both common rails. The head is cast in Mexico.

No new news there, but my background is industrial, non emission engines. We have tested some of the 24v's in differant configurations in our smaller gens.

The mexico casting kinda scares me though..... what happened to GB? Guess we americans are not the only ones outsourcing jobs...

The next couple of years are going to be interesting for us when our epa and smog exemptions expire.

 

[newby79]

425 for an onroad N-14 is pretty healthy. Most were 375 or 425. The offroad setup yields about 525.

I'd really like to put one of the C series (8.3) off roads into a truck, of course, it is a ways off from 600.

The 600 # that a lot of people are getting hung up on is somewhat available through aftermarket goodies, but not from cummins. We are talking differant programming, injectors, pumps, turbos, down tubes, exhaust, etc, not to mention inflated numbers from internet companies. Then the tranny becomes the weak link and so on down the line.

You are right about the 475 out of the n14 that was not what you would call on the factory settings. I used to work at a John deere dealer and one of the tech was going to school to learn how to reprogram computer controlled diesels. so the owner allowed him to take the truck to school to use with the class as a learning tool for payment the teacher turned the pump up and dyno'ed it at 475. trust me that truck would haul.

 

[046]

something must have changed for dodge truck ball joints.... on DTR there's been all sorts of reports of new dodge trucks needing full ball joint replacement after 45k miles or less. going thru multiple sets in 100k miles etc... but then again... loads of folks go 150k+ miles without issues. it's back to usage... there's only so much grease that can be stuffed into a joint... when that's gone... game over...

don't get me wrong... I drive a CTD... but it's a 97 12v with all the rugged stuff. mine came with zerts on ball joints and tie rod ends. so ball joint replacement issues, if any with my truck will be my own fault.

and yes... newer CTD are not as rugged old one's. in particular 98.5-2002 with VP44 electronic fuel injection pumps. stay away from those years, lift pump will fail taking out the main VP44 fuel injection pump. parts costs alone is $1,200+. it's not unusual for folks to go thru 2-3 VP44 in 125k miles :jawdrop:

but then again .... there's folks with 300k miles on stock VP44.
most folks who keep their 24v CTD... install a FASS aftermaket lift pump with ... most importantly a fuel pressure gauge.

2003- common rail cummins was a MUCH better truck. but it's no different in ripping out trannys. with a bully dog type chip... instant HP. that's why dodge will not warranty if they find out a chip has been installed.

You are missing the point. We don't see hardly any in warranty repair on Dodge ball joints and steering parts. U-joints? Tons of them. None are greasable.

I made quite a bit of money replacing front end parts on Ford's. It's the same parts, some used harder and some lead an easier life.

I'm talking F-150 and Super Duty's with loose front end parts with 10-15k is not unheard of. Plenty of Dodge and GM trucks rolling around with original ball joints and 100k. Adding a grease fitting will no doubt extend life, but only if it's not a junk part to begin with.

 

[eric_271]

Only the original Duramax is of Isuzu design.

Recently, the Duramax has been spanking the Cummins in stock pulling competitions.

From my experience here at the dealer I'd say the Cummins is a bit overrated. From junk pumps and leaking blocks on the 24v engines to bad injectors on the common rails. We are currently replacing the 2nd engine in as many months for dropping the valve seat on cyl. 6. Both common rails. The head is cast in Mexico.

You peaked my intrest. Blocks leaking what and where? Bad injectors? Do you mean leaking? If so what caused them to leak?

 

[Peacock]

You peaked my intrest. Blocks leaking what and where? Bad injectors? Do you mean leaking? If so what caused them to leak?

Blocks leaking coolant due to porosity in the casting.

The injectors we replace are on the common rail engines and they can fail either electronically or mechanically internally.

 

[ropensaddle]

So I see some of you do your living under the hoods of these
trucks what is the plus and minus of the 6.7 cummins or is it too early to say?

 

[Peacock]

So I see some of you do your living under the hoods of these
trucks what is the plus and minus of the 6.7 cummins or is it too early to say?

The egr is killing them. We've replaced a few turbo's and had to de-carbonize a few more. Replaced a couple dpf's too.

All in all, it's gonna take a little while before they get this new stuff figured out completely.

 

[ropensaddle]

The egr is killing them. We've replaced a few turbo's and had to de-carbonize a few more. Replaced a couple dpf's too.

All in all, it's gonna take a little while before they get this new stuff figured out completely.

Hmmmmmm it was egr cooler on the ford twice locked the engine up
water in the cylinders and they would not replace the engine just the
cooler. I told them and filed a complaint that if water got into a running
engine damage had to occur. I am not certified but am experienced and
know that water and piston movement spell disaster I am not through
with ford! So the dodge has the same **** huh 45000.00 for a pos pisses
me off. I am going to request a bailout from damages caused by the EPA
maybe spacemule will have a client. If we are going to be Guinea-pigs
those trucks should be sold as such and 10000.00 instead of the joke
they are asking.

 

[046]

there's also reports of fuel sensitivity on newest cummins. one fellow took his brand new CTD down to South America, where his job required him to be on site for 6+ months.

he didn't get further than Mexico before being stopped by fuel sensitivity issues. he'd been better off finding a low mileage 12v to take on a trip to South America. 12v has a reputation for running on most any fuel.

I can attest to that... currently running 50% waste motor oil in mine. have ran high as 90% waste oils, but that ended up clogging up my injectors. after replacing a new set... reduced mixture to 50% waste motor oils... a very conservative mixture for 12v cummins.

 

[Freakingstang]

there's also reports of fuel sensitivity on newest cummins. one fellow took his brand new CTD down to South America, where his job required him to be on site for 6+ months.

he didn't get further than Mexico before being stopped by fuel sensitivity issues. he'd been better off finding a low mileage 12v to take on a trip to South America. 12v has a reputation for running on most any fuel.

I can attest to that... currently running 50% waste motor oil in mine. have ran high as 90% waste oils, but that ended up clogging up my injectors. after replacing a new set... reduced mixture to 50% waste motor oils... a very conservative mixture for 12v cummins.

are you filtering your waste oil before dumping it in the fuel tank?

 

[Peacock]

are you filtering your waste oil before dumping it in the fuel tank?

I'd hope so. We just cleaned out a tank and replaced a pump on an old 12v that the guy had been burning waste oil in. Looked like sand in the filter and tank.

 

[046]

here's a few few pic's of my waste oil handling equipment.

45 gal or so of waste oil is pumped into 105 gal Semi tank, then balance filled with #2 diesel. then 50% mixture is pumped into main tank as needed.

Dot rated tank allows direct connection to main tank. need to purchase an overflow kit from Northern before making gravity hookup.

background of second pic is a 290 gallon storage tank.
third pic is Bilstein Engine flush machine that pumps and filters oil.

 

[spacemule]

Where do you all get your waste oil? I hear it's getting hard to find.