Raw CM2250

[Bods]

(06-29-2025 )mikkhh Wrote:  

(06-29-2025 )3406E Wrote:  I thought I read somewhere couple years back that Cummins made pre emission isx’s for Australia only. I maybe wrong

Some aussie market red engines (9liter for example) that had egr and dpf on other parts of the world had no egr in aussie market, but instead had SCR and used internal egr.

https://rawze.com/forums/showthread.php?tid=1823

This truck that you are looking at is 2450 not 2250 . Parts site gives that from esn.

Those huge tall exhaust stacks and flat sharp corners front end are no good for fuel mileage. Also lots of bling bling chrome is just pointless waste of money on a work truck.

I'm pretty sure this is my first post on the forum, but alas, I will try to not get off on the wrong foot.

With the work a lot of the trucks do here down under, there is no such thing as fuel economy. The work I do, which is the same work at the trucks in the photos I have posted, we gross usually over 300k pounds. A. triple road train with all tri axle groups is legal generally up to 148 metric tonnes gross mass. We measure fuel burn in litres per kilometer, not kilometers per litre. I do agree with you though, the chrome is a waste of money, but that's how those trucks are generally delivered here. As has already been mentioned, this is how they come here. Because of the way the model cycles work, we can end up with trucks years behind the emissions laws in the US.

These few photos are from a K200 kenworth, not my truck, but the company I subcontract to, totally stock. I didn't get a photo of the turbo setup, but it is quite the same as the one in the photo above.



These are from a different truck, same spec, T909.




I should add, these trucks, while taken a while (12 months +) to be built, were delivered within the last 12-18 months, so they are not ancient. I believe these guys ended up with the last of the K200 models, which have been replaced be the K220 now....


I should also add, on the topic of being able to fit the hardware and flash the tune. I believe the answer is no. Rawze has either spoken about this on mumble or has posts here (probably both actually) that there are differences that make it not a possible solution. I'm sure if he feels the need to weigh in, he will.

[mikkhh]

In those pictures the turbo is painted red like rest of the engine.


{look like} these engines indeed do have emissions. They have SCR - THAT IS EMISSIONS. Also programming wise there are limits for nox and lots of auxiliary emissions. How are the camshaft profiles? Valve overlap can also act like EGR. Also pulse injection can create small explosion that burns away available oxygen and there is internal EGR.

SCR cans get deSox and deNox regens too, they are active elements in this case

[Rawze]

(Yesterday )Bods Wrote:  ...
These few photos are from a K200 kenworth, not my truck, but the company I subcontract to, totally stock. I didn't get a photo of the turbo setup, but it is quite the same as the one in the photo above.

These are from a different truck, same spec, T909.

I should add, these trucks, while taken a while (12 months +) to be built, were delivered within the last 12-18 months, so they are not ancient. I believe these guys ended up with the last of the K200 models, which have been replaced be the K220 now....

I should also add, on the topic of being able to fit the hardware and flash the tune. I believe the answer is no. Rawze has either spoken about this on mumble or has posts here (probably both actually) that there are differences that make it not a possible solution. I'm sure if he feels the need to weigh in, he will.

Looks like the typical Aussie truck to me.

I also notice that the wiring and other plumbing is of higher quality, and secured more thoroughly than the Kenworths here in the states. It makes a person wonder why that is...lol.

[3406E]

(Yesterday )Bods Wrote:  

(06-29-2025 )mikkhh Wrote:  

(06-29-2025 )3406E Wrote:  I thought I read somewhere couple years back that Cummins made pre emission isx’s for Australia only. I maybe wrong

Some aussie market red engines (9liter for example) that had egr and dpf on other parts of the world had no egr in aussie market, but instead had SCR and used internal egr.

https://rawze.com/forums/showthread.php?tid=1823

This truck that you are looking at is 2450 not 2250 . Parts site gives that from esn.

Those huge tall exhaust stacks and flat sharp corners front end are no good for fuel mileage. Also lots of bling bling chrome is just pointless waste of money on a work truck.

I'm pretty sure this is my first post on the forum, but alas, I will try to not get off on the wrong foot.

With the work a lot of the trucks do here down under, there is no such thing as fuel economy. The work I do, which is the same work at the trucks in the photos I have posted, we gross usually over 300k pounds. A. triple road train with all tri axle groups is legal generally up to 148 metric tonnes gross mass. We measure fuel burn in litres per kilometer, not kilometers per litre. I do agree with you though, the chrome is a waste of money, but that's how those trucks are generally delivered here. As has already been mentioned, this is how they come here. Because of the way the model cycles work, we can end up with trucks years behind the emissions laws in the US.

These few photos are from a K200 kenworth, not my truck, but the company I subcontract to, totally stock. I didn't get a photo of the turbo setup, but it is quite the same as the one in the photo above.



These are from a different truck, same spec, T909.




I should add, these trucks, while taken a while (12 months +) to be built, were delivered within the last 12-18 months, so they are not ancient. I believe these guys ended up with the last of the K200 models, which have been replaced be the K220 now....


I should also add, on the topic of being able to fit the hardware and flash the tune. I believe the answer is no. Rawze has either spoken about this on mumble or has posts here (probably both actually) that there are differences that make it not a possible solution. I'm sure if he feels the need to weigh in, he will.

Got a question for this ; whats the typical miles / Km you guys usually do an inframe on your Motors when hauling this Weight.

[Bods]

(Yesterday )mikkhh Wrote:  In those pictures the turbo is painted red like rest of the engine.


{look like} these engines indeed do have emissions. They have SCR - THAT IS EMISSIONS. Also programming wise there are limits for nox and lots of auxiliary emissions. How are the camshaft profiles? Valve overlap can also act like EGR. Also pulse injection can create small explosion that burns away available oxygen and there is internal EGR.

SCR cans get deSox and deNox regens too, they are active elements in this case

I believe that is the way their egr is set up. I haven't looked personally, but I believe they are internal egr, yes.

As for the cans, yes, they have SCR, though they still offer an E3 (euro 3) replacement for the old Gen2 (CM570? I think) which is full non emissions. Same base engine though, these pictures are from one of those



This engine is fitted to a T904, so was pre emissions. They didn't start the 870/871 until the T908.

[Bods]

(Yesterday )3406E Wrote:  

(Yesterday )Bods Wrote:  

(06-29-2025 )mikkhh Wrote:  

(06-29-2025 )3406E Wrote:  I thought I read somewhere couple years back that Cummins made pre emission isx’s for Australia only. I maybe wrong

Some aussie market red engines (9liter for example) that had egr and dpf on other parts of the world had no egr in aussie market, but instead had SCR and used internal egr.

https://rawze.com/forums/showthread.php?tid=1823

This truck that you are looking at is 2450 not 2250 . Parts site gives that from esn.

Those huge tall exhaust stacks and flat sharp corners front end are no good for fuel mileage. Also lots of bling bling chrome is just pointless waste of money on a work truck.

I'm pretty sure this is my first post on the forum, but alas, I will try to not get off on the wrong foot.

With the work a lot of the trucks do here down under, there is no such thing as fuel economy. The work I do, which is the same work at the trucks in the photos I have posted, we gross usually over 300k pounds. A. triple road train with all tri axle groups is legal generally up to 148 metric tonnes gross mass. We measure fuel burn in litres per kilometer, not kilometers per litre. I do agree with you though, the chrome is a waste of money, but that's how those trucks are generally delivered here. As has already been mentioned, this is how they come here. Because of the way the model cycles work, we can end up with trucks years behind the emissions laws in the US.

These few photos are from a K200 kenworth, not my truck, but the company I subcontract to, totally stock. I didn't get a photo of the turbo setup, but it is quite the same as the one in the photo above.



These are from a different truck, same spec, T909.




I should add, these trucks, while taken a while (12 months +) to be built, were delivered within the last 12-18 months, so they are not ancient. I believe these guys ended up with the last of the K200 models, which have been replaced be the K220 now....


I should also add, on the topic of being able to fit the hardware and flash the tune. I believe the answer is no. Rawze has either spoken about this on mumble or has posts here (probably both actually) that there are differences that make it not a possible solution. I'm sure if he feels the need to weigh in, he will.

Got a question for this ; whats the typical miles / Km you guys usually do an inframe on your Motors when hauling this Weight.

Can only speak for the company I contract to, but basically it's a sh*tshow with the sort of run they get out of these red engines. Some will do 1 million km (roughly 600k miles) some are lucky to get 3-400k km (250k ish miles). I can't say whether this is to do with drivers or just luck of the draw. Owner operator trucks seem to do a lot better (we have probably 3 out of the 8 or so contractors with Cummins), so I guess it does come down to the driver. Company drivers, well, I'm pretty sure they're the same everywhere, so that probably goes without saying....

Generally though, with the work these things do here, they don't usually get a very long life after an inframe. Better off doing an out of frame, or what most of them do is just bin them and fit crate engines. I have heard of some being inframed and only getting another couple hundred thousand before they are f*cked altogether. One of the other contractors just budgets to stick a crate engine in every million km, the truck he owns, an old Mack Vision has probably passed 4.5mil km on the chassis now. So every 5 years or so he will just drop a crate engine in and carry on....

[Bods]

(Yesterday )Rawze Wrote:  

(Yesterday )Bods Wrote:  ...
These few photos are from a K200 kenworth, not my truck, but the company I subcontract to, totally stock. I didn't get a photo of the turbo setup, but it is quite the same as the one in the photo above.

These are from a different truck, same spec, T909.

I should add, these trucks, while taken a while (12 months +) to be built, were delivered within the last 12-18 months, so they are not ancient. I believe these guys ended up with the last of the K200 models, which have been replaced be the K220 now....

I should also add, on the topic of being able to fit the hardware and flash the tune. I believe the answer is no. Rawze has either spoken about this on mumble or has posts here (probably both actually) that there are differences that make it not a possible solution. I'm sure if he feels the need to weigh in, he will.

Looks like the typical Aussie truck to me.

I also notice that the wiring and other plumbing is of higher quality, and secured more thoroughly than the Kenworths here in the states. It makes a person wonder why that is...lol.

That is a good point, though for everything that's done really well, there's probably two or three things that aren' t haha.

I need to get back on mumble one of these days and say hello...... Still alive down here at least...

[Aussie Steve]

(Yesterday )Rawze Wrote:  

(Yesterday )Bods Wrote:  ...
These few photos are from a K200 kenworth, not my truck, but the company I subcontract to, totally stock. I didn't get a photo of the turbo setup, but it is quite the same as the one in the photo above.

These are from a different truck, same spec, T909.

I should add, these trucks, while taken a while (12 months +) to be built, were delivered within the last 12-18 months, so they are not ancient. I believe these guys ended up with the last of the K200 models, which have been replaced be the K220 now....

I should also add, on the topic of being able to fit the hardware and flash the tune. I believe the answer is no. Rawze has either spoken about this on mumble or has posts here (probably both actually) that there are differences that make it not a possible solution. I'm sure if he feels the need to weigh in, he will.

Looks like the typical Aussie truck to me.

I also notice that the wiring and other plumbing is of higher quality, and secured more thoroughly than the Kenworths here in the states. It makes a person wonder why that is...lol.

Probably has to do with the horrendous roads we are expected to operate on. My T909 is only averaging 49klm/hr since new. Most of the 'highways' are very 2nd rate, I have towed triples on the dirt roads up on Cape York Penninsular where average speeds are around 20 klm/hr. The black split corrugated conduit most commonly found protecting electrical wiring will wear a hole clean through wiring harnesses on the dirt roads from corrugations/vibration. Kenworth are one of the better manufactures at preventing this, although most Kenworth trucks spent a week in the shed getting more preventative work before venturing onto the dirt.

[3406E]

As for the cans, yes, they have SCR, though they still offer an E3 (euro 3) replacement for the old Gen2 (CM570? I think) which is full non emissions. Same base engine though, these pictures are from one of those




Are you saying these 2250 are twin cams?