12.7 DDEC4, get rid of wastegate?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by fortycalglock, Mar 1, 2012.

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  1. lastgoodusername

    lastgoodusername Medium Load Member

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    that's awesome.johnny
     
    lastgoodusername, Mar 25, 2012
    #21
  2. Hanadarko

    Hanadarko Independent Owner/Operator

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    I just replaced my OEM Garret turbo with a 171702. Dam, it was cheap enough for sure (from Truck Pro) and very straight forward to do.

    I have a tune on my 12.7 but not sure it was done as good as it could. I am replacing the CAC this week and then will do more testing.

    -JD
     
    Hanadarko, Mar 25, 2012
    #22
  3. BCO532335

    BCO532335 Light Load Member

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    BCO532335, Mar 26, 2012
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  4. Pablo-UA

    Pablo-UA Road Train Member

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    yesterday I saw truck with bad WG cylinder, bad diafragm and WG wont working. No fault codes.....
     
    Pablo-UA, Mar 26, 2012
    #24
  5. free2fly973

    free2fly973 Light Load Member

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    i have a 12.7 500hp ddec III. Would i also use the 171702? How about the s400-75? Needing to replace manifold thats leaking at the joint from center section to right hand (front) side. Thought might do both now. Current turbo don't have waste gate. Not sure what turbo on it now. But its garrett
     
    free2fly973, May 25, 2013
    #25
  6. rebel127

    rebel127 Light Load Member

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    The 171702 has the 75mm comp wheel. It is a superior wheel than the Garrett.
     
    rebel127, May 25, 2013
    #26
  7. free2fly973

    free2fly973 Light Load Member

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    Thanks for the help.
    The only real differnce in the IV's and the III's is the software, right? Once I get the motor up to specs and really liking it; I should be able to tune (turn) it up just a tad, right?
     
    free2fly973, May 25, 2013
    #27
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