New Cummins

[drperry]

I use def. About 6 gallons every 1000 miles. Not all trucks use DEF. Cat used a system that used diesel fuel to send a flame down through the exhaust like a furnace. It sucked. I don't miss working on them.

Cat's are a powerhouse though

 

[tleach17]

I use def. About 6 gallons every 1000 miles. Not all trucks use DEF. Cat used a system that used diesel fuel to send a flame down through the exhaust like a furnace. It sucked. I don't miss working on them.

Cat's are a powerhouse though

I do miss driving the custom trucks that came in. My favorite was a Day cab Pete that I did an In-Frame overhaul on. It had a 625 C16 in it with 10" straight pipe stacks. That was the best road test I ever took a truck on after an overhaul. That bitch could PULL!

 

[drperry]

I use def. About 6 gallons every 1000 miles. Not all trucks use DEF. Cat used a system that used diesel fuel to send a flame down through the exhaust like a furnace. It sucked. I don't miss working on them.

Cat's are a powerhouse though

I do miss driving the custom trucks that came in. My favorite was a Day cab Pete that I did an In-Frame overhaul on. It had a 625 C16 in it with 10" straight pipe stacks. That was the best road test I ever took a truck on after an overhaul. That bitch could PULL!

My work truck is a 475 C15 with the 550 tuning... So about 480HP

120,000lbs gets moving pretty good, some days

 

[tleach17]

here is one of their trucks. I am trying to find a pic of the pete. This truck has stacked chips. We did a couple head gaskets on it.

 

[cRiPpLe_rOoStEr]

It's availiable at pretty much every fuel station here...

Here it's still not available at fuel stations

Not all trucks use DEF. Cat used a system that used diesel fuel to send a flame down through the exhaust like a furnace. It sucked. I don't miss working on them.

As far as I know, this setup is used to "regenerate" the DPF.

 

[mfennema]

I could be wrong on this, but I believe that its not readily available in Brazil yet because the emissions regulations aren't at the same level as they are in the US/Canada. It will catch up down there soon enough though.

 

[cRiPpLe_rOoStEr]

I could be wrong on this, but I believe that its not readily available in Brazil yet because the emissions regulations aren't at the same level as they are in the US/Canada. It will catch up down there soon enough though.

American emission standards are equivalent to the Euro-6. Back here Euro-3 was enforced until January, but SCR started in Europe with the Euro-4, and here Euro-5 is now enforced but it's still not so easy to find the DEF nationwide. Due to the 2008/2009 recession, Euro-4 was jumped over.

 

[drperry]

It's availiable at pretty much every fuel station here...

Here it's still not available at fuel stations

Not all trucks use DEF. Cat used a system that used diesel fuel to send a flame down through the exhaust like a furnace. It sucked. I don't miss working on them.

As far as I know, this setup is used to "regenerate" the DPF.

The SCR system still does regeneration... Or at least has the capability for regeneration if needed. Otherwise it wouldn't even NEED a DPF.

I could be wrong on this, but I believe that its not readily available in Brazil yet because the emissions regulations aren't at the same level as they are in the US/Canada. It will catch up down there soon enough though.

American emission standards are equivalent to the Euro-6. Back here Euro-3 was enforced until January, but SCR started in Europe with the Euro-4, and here Euro-5 is now enforced but it's still not so easy to find the DEF nationwide. Due to the 2008/2009 recession, Euro-4 was jumped over.

SCR isn't mandatory here... It's just working better than the DPF and regen setup.

International is fighting the gov't to prevent SCR from being mandatory... They're going to follow CAT in their failed attempted at doing the DPF regen thing to control emissions...

 

[cRiPpLe_rOoStEr]

The SCR system still does regeneration... Or at least has the capability for regeneration if needed. Otherwise it wouldn't even NEED a DPF

SCR system is not supposed to clog like the DPF...

SCR isn't mandatory here... It's just working better than the DPF and regen setup.

International is fighting the gov't to prevent SCR from being mandatory... They're going to follow CAT in their failed attempted at doing the DPF regen thing to control emissions...

Neither here the SCR is mandatory. Some engines are already certified just with EGR and twin-turbo, altough in some smaller engines the SCR leads to a lower decrease on power without the higher cost of a twin-turbo. As far as the DPF regen goes, it's not so unusual.

 

[drperry]

The SCR system still does regeneration... Or at least has the capability for regeneration if needed. Otherwise it wouldn't even NEED a DPF

SCR system is not supposed to clog like the DPF...

SCR isn't mandatory here... It's just working better than the DPF and regen setup.

International is fighting the gov't to prevent SCR from being mandatory... They're going to follow CAT in their failed attempted at doing the DPF regen thing to control emissions...

Neither here the SCR is mandatory. Some engines are already certified just with EGR and twin-turbo, altough in some smaller engines the SCR leads to a lower decrease on power without the higher cost of a twin-turbo. As far as the DPF regen goes, it's not so unusual.

The SCR makes regeneration so rare, or so short, it might as well not be happening

In North America, the only way the EGR and twin turbo setup is passing emissions is credits from previous years... A.K.A. The new Navistar engine on a CAT block, with Navistar everything else...

The urea injection itself causes absolutely no power loss.