A V-8 Cummins???

[RustyJC]

Whatever.



Rusty

 

[ACerf]

Another interesting point; DC is concerning production of a 4500/5500 built by their Frightliner div. , with Dodge name plates due out 2007. My sources tell me that they will have either a 6. 4 or 6. 7 inline 6, basically the present 5. 9! So I guess the fate of the inline may depend on how well these new models do.



For the use in the 1500 I think the V-6 might be a nice fit, but I have to agree with others that the 3. 9 Inline would work just a well!



"INLINES FOR EVER"!

 

[RonsRig]

The V-6 can go into the Dakota. That would be nice. I would consider trading the Ram for a Dakota if that would happen. The I-5 that is used in the Sprinter might go into the Dakota too.



I don't see why they don't put the I-6 into the 1500. Is there that much difference between it and our 2500/3500?

 

[Pawpaw]

The other day must've been Dodge Day at the local Love's truck stop. Lots of CTD's filling up and one lone Rabbit TDI, being filled by a Dodge mechanic.

According to him, the 1500 is going to get the same 5-cyl Mercedes diesel that the Sprinter has.

Take it with a grain of salt, but that's what he said.

Bob

 

[Vaughn MacKenzie]

The key word there is "developed". It was developed from the in-line engine series inherited from Onan.

I never heard that one before . . .



I believe inline engines are easier to engineer and least expensive to build, but I could be wrong. The reason for going Vee configurations is to save weight and make packaging in aerodyamic vehicles easier as mentioned.



Cummins has been working on the Vee project for some time, back to 2000 I believe, so it's far from being hastily thrown together.



I think they don't go with the B3. 9 because it may be difficult to smooth vibrations . . . it may be smooth at normal power levels but cranking it would likely cause more vibes. Also marketing probably plays a role . . . who's going to get enthused about a Durango or Dakota with a 4-banger? Cummins is likely going after the American gasser crowd and their Vee engines speak their language.



Vaughn

 

[supersonic]

The key word there is "developed". It was developed from the in-line engine series inherited from Onan.

Where on God's green earth did you hear that one? Cummins accuired Onan only three or four years ago, and before that didn't have anything to do with diesels, only boxer twin and four cylinder engines for their gen sets. The B series was designed by a company called Consolidated Diesel in a joint venture between Cummins and Case. Hopefully you haven't been telling that to the locals down there. No hard feelings but get your facts straight.

 

[jsimpson]

Where on God's green earth did you hear that one? Cummins accuired Onan only three or four years ago, and before that didn't have anything to do with diesels, only boxer twin and four cylinder engines for their gen sets. The B series was designed by a company called Consolidated Diesel in a joint venture between Cummins and Case. Hopefully you haven't been telling that to the locals down there. No hard feelings but get your facts straight.

... from the long-time Cummins distributor in Ft. Lauderdale who supplies marine engines to the yacht builders and also handles marine generation units. I don't suppose you believe that the Onan marine generator units have been using air cooled Onan gas engines all these years, do you?

 

[DKarvwnaris]

Hmm,

I seem to recall Cummins and Onan having a lot longer relationship than just A few years.

 

[JUeckert]

if memory serves me correct,cummins onan goes back to a least mid 90,s and even earlier i believe. best friends a cummins mechanic of 20+ years,i will have to ask him on that. as far as case supplying a platform and cummins supplying the engine expertise ,this parntner ship came about because case consolidated,they by no means needed cummins to build them a engine, cant explain exactly why they dropped the case engine line up,again i will have to ask my friend. while the 4bt,and 6bt are good engines,the are by no means better than the case engines they replaced... .

 

[jsimpson]

Onan came under complete Cummins ownership in 89, and Onan had been making diesel engines since before WWII.

 

[supersonic]

News to me! Oh well, we learn new things every day. I'm Just going by what my Cummins district rep. said. Where can I find more info. on the older Onan diesel engines? I love diesel nostalgia!

 

[Vaughn MacKenzie]

The two older Onan emergency generators at our hospital use Cummins K19s and were installed about 1990.

 

[sodbust]

Cummins V8

I had a V8 Cummins in a tractor,, it was the V555 and pumped 220 hp. . It sucked. . It slobered and smoked, not any tork, and without warning threw a rod. . A fellow that worked for Cummins back in the 1960s told me that the problem with V8 diesels was the high speed shock waves in the block. . That is why ford uses a dynamic flywheel. .



I went to our local cummins dealer to get parts one day,, they had a fence row of V8 stacked like cord wood out back. . That cost the company allot of money. .



They made a V904 for semi trucks, they were a huge joke. .



Daniel

 

[JMetzger]

I agree the Cummins V series that were in semi tractor's were junk. Had two in International Harvester CO4000's & couldn't keep them running. Finally had to get rid of them & bought the 350 series Cummins 6 cyl.

 

[SRadke]

They made a V904 for semi trucks, they were a huge joke. .

Not sure if it's the same engine but they used some 903's in tractors as well.



-Scott

 

[jwduke]

Didn't I read in the issue before last (TDR) that Cummins courted GM with the 5. 9 in the mid 80's, but they opted for the 6. 2 Detroit?

 

[THanley]

V8 Cummins

Cummins developed a V6 and V8 as part of a DOE (Department of Energy) grant. I have read reports, and Cummins met all their goals in the project for target weight, power, torque, cost, fuel economy and performance compared to gas engines in SUV's and 1/2 ton pickups. The only goal they missed was noise. Even with common rail, they could not hit the noise bogy set by the gas engines.



By the way, the fuel economy numbers were nice, around 25 mpg. If I can, I'll try to post a PowerPoint presentation. The more demand that is shown for these engines, the more likely someone with pick them up and use them. I've heard rumors, like everyone else about who is looking. Mostly Asian manufacturers, are what I'm told. Only time will tell.

 

[ilovetrains]

I don't think it is possible to drop the 4bt into a 1500 truck. First of all the weight is way more than a HEMI, second it is way too tall. You would have to radically change the front end to make it work, and why? If Dodge wanted to stick a turbo four it could use the CRD out of the Liberty. Frankly I cannot believe they are not putting that in Dakota's and Durango's.



The real lure of a v design diesel in smaller applications is the ability to wind it up to a higher RPM. it is a trade off between torque and hp. They do not need as much torque but would love more hp.

 

[SRadke]

The real lure of a v design diesel in smaller applications is the ability to wind it up to a higher RPM. it is a trade off between torque and hp. They do not need as much torque but would love more hp.

This and what you hit on earlier in your post. The "V" engines fit in a tighter package. A B series it a tall engine, you don't have room for that in many applications.



The higher rpm engine can make mor horsepower but to increase rpm they have to lighten pistons and rods as well as shorten stroke and before long you've got a high reving engine that can't handle being turned up. That's fine I guess if it's got suitable power in stock form but we all know how that goes... ...



-Scott

 

[THanley]

Cummins V8 & V6 Informaiton

Attached is a summary of the Cummins small V8 & V6 project.