cxn613 Posted January 6, 2015 Share Posted January 6, 2015 Used with mp-8 415 and mdrive. What can this be uprated to or should I find out engine torque package first. Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/38324-2011-2012-cxu/ Share on other sites More sharing options...
rick harper Posted January 6, 2015 Share Posted January 6, 2015 I would think you could go to 505HP. You might have to change a few things per Mack. Quote Link to comment https://www.bigmacktrucks.com/topic/38324-2011-2012-cxu/#findComment-273382 Share on other sites More sharing options...
MackMann85 Posted January 7, 2015 Share Posted January 7, 2015 If buying from a Mack dealer they can send the VIN to corporate who will respond with exact parts required for your requested upgrade along with cost. You will need to know what rating you want to switch it to first Quote Link to comment https://www.bigmacktrucks.com/topic/38324-2011-2012-cxu/#findComment-273445 Share on other sites More sharing options...
Mackpro Posted January 7, 2015 Share Posted January 7, 2015 No engine parts change for any HP upgrade on the MP engines. The only thing that can keep you from going to some of the 505's (MP8 of course) is the torque ratings of the trans. We had some customers want to go the the 505M or 505C but their tranny was to small. They were able to go to the 505E because of lower torque rating of the engine. Only difference in the HP of the MP engines is a download. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/38324-2011-2012-cxu/#findComment-273483 Share on other sites More sharing options...
MackMann85 Posted January 9, 2015 Share Posted January 9, 2015 And clutch/driveline in occasional instances. Quote Link to comment https://www.bigmacktrucks.com/topic/38324-2011-2012-cxu/#findComment-273680 Share on other sites More sharing options...
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