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SDP Cat C15 Boost?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by dustinbrock, Mar 4, 2017.

Page 2 of 2
  1. Mar 6, 2017 #11
    dustinbrock

    dustinbrock Road Train Member

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    saskatoon,sk
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    What's your hp setting?
     
    dustinbrock, Mar 6, 2017
    dustinbrock, Mar 6, 2017
    #11
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  3. Mar 6, 2017 #12
    Cat sdp

    Cat sdp . .

    19,879
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    Orion's Belt
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    It's a lively 550/1850....

    if those Dyno #s are yours there not bad....
     
    Cat sdp, Mar 6, 2017
    Cat sdp, Mar 6, 2017
    #12
  4. Mar 6, 2017 #13
    dustinbrock

    dustinbrock Road Train Member

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    Apr 19, 2012
    saskatoon,sk
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    No they aren't mine. I went on just answer and asked the same question and he sent me that and said cat specs on a sdp engine is 36-50psi on a 550.

    This is my problem, then you say your driving one with more boost!
     
    dustinbrock, Mar 6, 2017
    dustinbrock, Mar 6, 2017
    #13
  5. Mar 10, 2017 #14
    Cat sdp

    Cat sdp . .

    19,879
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    IMG_1305.JPG
     
    Cat sdp, Mar 10, 2017
    Cat sdp, Mar 10, 2017
    #14
    dustinbrock, SAR and Oxbow Thank this.
  7. May 9, 2020 #15
    Freeway_389

    Freeway_389 Bobtail Member

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    Feb 15, 2020
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    Did you ever figure out what issue you were having @dustinbrook. I have an sdp and have never seen 40psi. I have 0 boost leaks and over 100 psi fuel pressure at 1500rpm. @catsdp what are your thoughts?
     
    Freeway_389, May 9, 2020
    Freeway_389, May 9, 2020
    #15
  8. May 9, 2020 #16
    spsauerland

    spsauerland Road Train Member

    4,296
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    May 31, 2010
    West Harrison, In
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    Pretty sure he put a CM871 ISX in his Pete.
     
    spsauerland, May 9, 2020
    spsauerland, May 9, 2020
    #16
    dustinbrock and SAR Thank this.
  9. May 10, 2020 #17
    kwcam

    kwcam Light Load Member

    193
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    Dec 29, 2012
    at the shop
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    SDP engines are only rated for 30 psi boost from factory, not like the MXS, NXS at 45 to 55 psi.
    When the SDP first came out we had lots of drivers come in saying they are "not getting boost like they use to" comparing it to they old engine ( mxs, nxs) they just see a yellow engine.
     
    kwcam, May 10, 2020
    kwcam, May 10, 2020
    #17
    SAR Thanks this.
  10. Aug 26, 2020 #19
    BigTruckSlim

    BigTruckSlim Bobtail Member

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    Aug 26, 2020
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    BigTruckSlim, Aug 26, 2020
    BigTruckSlim, Aug 26, 2020
    #19
  11. Aug 26, 2020 #20
    BigTruckSlim

    BigTruckSlim Bobtail Member

    2
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    Aug 26, 2020
    0
    What about the same engine getting around 20-23 psi for boost?
     
    BigTruckSlim, Aug 26, 2020
    BigTruckSlim, Aug 26, 2020
    #20
  12. Aug 26, 2020 #20
    dustinbrock

    dustinbrock Road Train Member

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    Apr 19, 2012
    saskatoon,sk
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    Hey, I am very sorry, I never got a notification for your response till this latest one came in......or I was drinking alot in may!

    Spsauerland is right, I swapped a ISX in but I did finally finds my issue with Lisa boost, it was low fuel pressure. Multiple shops tested it at idle and it passed but finally I got pissed and paid a shop with a dyno to figure it out and very quickly they did, u set load the fuel pump fell flat on its face, on a bench test it had zero vacuum.

    Replaced the fuel pump and that thing came alive like crazy!
     
    dustinbrock, Aug 26, 2020
    dustinbrock, Aug 26, 2020
    #20
    Ruthless, AModelCat and Cat sdp Thank this.
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