Our company just purchased 5 new Freightshakers with Detroit series 60 engines 475hp. We have 12 other 02 Freightshakers 425hp. Since my Petercar was in the shop , I took one of the new trucks out today . Wow , what a dud . The 02 models with the smaller motors will out pull the 475hp truck. To meet emm. standards the series 60 now uses egr and has a cat . The turbo takes forever to spool up , thus giving poor acceleration . The motor also has a totally different sound . I will sure hate to see our Dodge Cummins trucks when they have to start using egr to meet 2007 emm. standards.

 

We have 7 new Freightshakers with the Mercedes instead of the 3126 Cat's in the previous models.
They are GUTLESS compared to the older Cat's. The ramp-up speed is slower (CONTROLLED BY PCM) and they have different gearing in the rear. I can't compare engines without taking the gear ratios into the conversation.
Why the difference..... can't pinpoint--- But I can tell you there is a difference. (BIG TIME)

 

Well , you should have ordered the Cummins ISM or ISX , we have been using EGR since 02 , and with the VGT turbo we dont have any lag time , but your right about the power , the reason for the EGR is to cool the combustion and reduce emmission. the main reason for the VGTurbo is not for power but to produce exh pressure in the EGR system. you wont see many Cummins power Freightliner anymore for the heavy duty truck, Freighliner wanted a cheaper engine and got a agreement with Detroit. just like Kenworth has an agreement with Cat. , but for extra dollars you can order any engine with any truck. myself I am kinda glad we dont have an agreement with Freightliner , the Century class is one of the worst to work on.

 

Well the FL80 series are NO BETTER. Nothing but problems. Especially the computer dash, electronics and very POOOOR grounds.

 

The Series 60EGR engine uses a VGT controlled pneumatically to sliding vanes. Something is definately wrong if you are recieving lag on the bottom end.

John, Freightliner is in agreement with Detroit because Chrysler owns both as well as MB. Why would they try to sell another competitors engine ahead of there in house family engine?

What happend is that Freightliner made the statement that they would only be putting the Series 60 into Freightliners, Western Star (all Daimler owned.) The reason was to pull the fans of the 60 engine that may be driving a Paccar over to a Freightliner for the 60.

In retaliation, Cummins went to Paccar and made and agreement to be there engine provider. The problem with this is, is that most Paccar owners want a Cat under the hood.

Freightliner and Cummins have made amends (somewhat). You will now be seeing the ISC in the M2 Business Class as well as many more ISB, ISL, and ISM engines in the custom chassis line.

The Mercedes actually uses 2 engine controllers. The PLD which is mounted on the engine basically only controls the unit pumps fuel mapping, solenoid control, and various sensor readings.

The VCU (Vehicle control unit) is actually the brains of the engine. It is located on the right side of the dash behind the panel. It is connected to the PLD thru its own proprietary datalink (K-Line) The VCU controls all of the paramters for the engine such as max speed, lower and upper droop, cruise, TPS, fan activation and on and on. Rammer, if your having problems with the MB, a VCU version upgrade may be needed.

 

Ok! I'm some what new to the CTD. I hear everyone talking about ISM, ISB, ISL.
I only understand CTD at current.
I don't see these terms listed in the glossery.
Someone willing to explain?

 

ISB is the 5.9 liter, ISC is the 8.3 liter, the higher the letter the bigger the engine. For more info there's a link to Cummins' web site in the links page here, there are specs on the medium and heavy truck engines there.

 

Thanks Dave. I'll check that out.

 

Hello Monty , I am starting to remember all that now , it has been a while. I do remember also that one of the reason they want Cat is also because they are cheaper then Cummins. years ago the Cat was more expensive with the Detroit being the cheapest .