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  1. #1
    Light Load Member NRG's Avatar
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    EPA 2014 Cummins ISX15 CM2350 HP/TQ graphs

    While specing an ISX motor for my new 2014 KW T800, I got a piece of info from my local Cummins dealer for the HP/TQ graphs of the particular ratings I was interested in. Here they are for those who interested in EPA 2013/2014, CM2350 ISX Signature series with 550/2050 and 600/2050.

    Attachment 56841
    Attachment 56842


  2. #2
    Road Train Member Cat sdp's Avatar
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    Interesting that the hp graph shows almost no drop in power from 1500 rpm to redline.... Most new engines are gasping for air at those higher rpms.

    Tks for for posting it .

  3. #3
    Light Load Member NRG's Avatar
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    Quote Originally Posted by Cat sdp View Post
    Interesting that the hp graph shows almost no drop in power from 1500 rpm to redline.... Most new engines are gasping for air at those higher rpms.

    Tks for for posting it .
    Yes. It is definitely shows more with the 550 rating.

  4. #4
    Medium Load Member deming807's Avatar
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    Quote Originally Posted by NRG View Post
    While specing an ISX motor for my new 2014 KW T800, I got a piece of info from my local Cummins dealer for the HP/TQ graphs of the particular ratings I was interested in. Here they are for those who interested in EPA 2013/2014, CM2350 ISX Signature series with 550/2050 and 600/2050.
    I real life net engine power is limited by transmission ECU to more calm values.

    -24c0e835cf61-jpg

  5. #5
    Light Load Member NRG's Avatar
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    Quote Originally Posted by deming807 View Post
    I real life net engine power is limited by transmission ECU to more calm values.

    -24c0e835cf61-jpg
    I have a similar printout as well from my spec with 600/18/3.91/24.5, I'll try to post it tomorrow. How do you like performance of your Ultra and 550 so far?
    Last edited by NRG; 10.31.2013 at 12.01 AM.

  6. #6
    Medium Load Member deming807's Avatar
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    Quote Originally Posted by NRG View Post
    I have a similar printout as well from my spec with 600/18/3.91/24.5, I'll try to post it tomorrow. How do you like performance of your Ultra and 550 so far?
    Its not build yet. I expect it in Jan'14.

  7. #7
    Light Load Member NRG's Avatar
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    Quote Originally Posted by deming807 View Post
    Its not build yet. I expect it in Jan'14.
    Oh, OK. I'm about to pull the trigger on my spec as well. Really wanted to get the Ultra, but for my application it's an overkill . Pulling super Bs in northern Alberta with 30% off road.

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    Hey crazy question having never bought a new truck. When picking your motor do they charge more based on hp and torque? Or is it like the extended warranty 450hp and lower is one price and over 450hp is cost way more?

    I know spec'ing the drive line will cost more depending on tq rating but always wondered about the motor it self.

  9. #9
    Road Train Member Cat sdp's Avatar
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    A regional manager at cat once told me " we sell hp". Each jump in hp costs more $$.

  10. #10
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    Anyone know what it would cost to have a cm2350 550/2050 turned up to a 600/2050?

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