Other applications of ISB motors

[rspinks]

What other applications is the Cummins ISB motor used in, and what are the highest HP/TQ numbers offered using the same mechanical engine parts we have in our trucks (ie: just fueling parameter differences)?



I'm just wondering what Cummins considers as the limit of our engine/injection pump combination. Not that I expect to get warranty coverage with any bombs, but it would be nice to know if, for example, Cummins offers and warranty's the engine in a 275/650 configuration in some other application.



Thanks,



Rich

 

[Evan A. Beck]

RVs, buses, heavy trucks, marine applications, excavation equipment, farm equipment, and generators are the most common uses. I have worked on them in Dodges, RVs, and heavy trucks. The maximum rating from Cummins is 300/660, but the 275/660 is the most common.

 

[rspinks]

What are the differences between these engines and Dodge truck engines? Is the VP44 identical? What about the injectors, are they the same as the ETH, ETC or neither? Is this where the common upgrade Bosch 275's are used?

 

[Bob Wagner]

this will answer most of your questions

http://www.dodgeram.org/support_pgs/diesel_ix.htm

 

[Evan A. Beck]

The differences include ECM's, piston design, compression ratio, valve seats, injectors, etc... Yes, this is where the 275 spec injectors come from. The VP44 also has different programming, and internally, is very similar to the one in the Ram.

 

[rspinks]

dodgeram.org

That's a good sight for tech info. I see in general that other versions have more torque at lower RPM's, just like adding a fueling box to our motors. Is the Marine 370 an ISB engine? I wonder what the torque rating is on this version, surely more than 660ftlb unless they are spinning it over 3000rpm.



I didn't see any factory versions putting 900+ ftlbs like many people on TDR. It's awesome how overbuilt these engines are.

 

[TxDieselKid]

I do not think the Marine 370 is an ISB. This is why the "370 Marine" injectors will work on the 12v's, and not the 24v's.



Andrew

 

[Doc Tinker]

78 passenger - 215 hp rear engine (pusher) school buses



Doc

 

[rspinks]

Thanks for the input. Are there any significant differences in the block, crank, connecting rods or cylinder head?

 

[RBallard]

What's classic is that the motor is optional for the Ford F650 and F750 commercial trucks.

 

[A Johnson]

Just saw a 40' New Flyer Hybrid transit bus, uses an ISB as basically a gen drive to charge batteries.

 

[CAT 385]

Lots of 20 ton excavators use the 5. 9 cummins @ 140 hp @2200 rpm.

 

[45A1]

My personal favorite application of the B series is in Bombardier groomers used on ski mtns. (i'm pretty sure it's a B series-somebody correct me if i'm wrong). i used operate one 8 hours a night, with the throttle locked wide open. i cant remember how many rpms it was turning, but we used to run two 8 hour shifts a night 7 days a week all winter. the stuff we used to do with those machines was nothing short of amazing. pushing snow up incredibly steep slopes (sometimes to the point of using a winch/cable) while dragging a hydraulic renovator. the fuel tank had a sending unit on either end because the slopes were so steep all the fuel would stack up on either end of the tank. we used to break hydraulic stuff all the time, but never saw any work being done to the cummins in the winter. i think the newer machines-which was a couple years ago-were rated at 300 hp

 

[StakeMan]

When I bought my FL60 last year I could have got the Cat 3126B, 5. 9 ISB, or the Mercedes (forgot the model #). All 3 could be turned up to 300 hp, (350 if it was an emergency vehicle). I know that the Cat and the Cummins were both just programming. I do not know what internal differences there are between that ISB and the one in our trucks though. I bought the Cat just because it has more displacement.

 

[rspinks]

Groomers

That's cool with the groomers. As a kid I grew up skiing in British Columbia and always wanted to drive a groomer on a hill someday (and those were mostly underpowered gas beaters, not like the nice new stuff). My uncle works at the Fernie BC ski hill and they got a new rig this year for the steep slopes. Not sure what model but it has a big winch mast and about 1000' of cable. It just winches up and down the slope so the tracks don't chew up the surface at all, works great apparently but I wouldn't want to be trusting my life to that cable! Maybe there's a safety line as well.



Stakeman re: your Cat 3126B, is this 6-in-a-row like the Cummins? How big is it and what other similarities are there between these motors?



RS

 

[duaneparks]

Originally posted by StakeMan

I bought the Cat just because it has more displacement.

I'll bet that Cat sounds nice too! I had a flatbed tow my 1st Ram once and it had a Cat in it... sounded very distinctive. Even the shop guys asked what he had in it.



That was one proud flatbed driver!



Duane

 

[Loren]

The UPS driver who delivers to our house has an ISB in his truck.



I've also heard it in several other UPS trucks. Isn't that sound distinctive? You can even tell it's an ISB rather than a 12 valve.



Loren

 

[JHansen]

Maybe heresy but......

... . if we'd have had a choice of power similar to the Class 8 rigs I'd have checked off the box beside Cat power. I ran Cat engined stuff for a few years in the oilpatch here-and Yellow Fever pretty much took me over... My opinion anyways-sure there's a few others that share it just as I'm sure there's a few that think I'm an idiot..... Don't get me wrong-I love my ISB-but the Cat brainwashing is pretty thorough!



Jason

 

[StakeMan]

Its an inline 6. I think it a 7. 4 liter.

 

[Alan Reagan]

They use the ISB in the "mules" (small yard trucks) here at the Port of Savannah. Automatic transmission pulling up to 80,000 lbs. They put two twenty foot containers on a lowboy and take off.