Trucking Jobs New Driver Jobs Flatbed Jobs Tanker Jobs Refrigerated Jobs Auto Hauler Jobs
Results 1 to 10 of 10
  1. #1
    Light Load Member Nevs's Avatar
    Member Since
    Dec 2010
    Location
    flyover country (Iowa)
    Trucker?
    39 Years
    Posts
    295
    Thanks
    70
    Thanked: 99 Times

    Holset turbo on a 6NZ C15

    Is anyone running this combination? Good, bad or ??? I'm looking to upgrade my turbocharger, I'm leaning towards the Bully Dog because it's a straight bolt on, but I've got a couple of friends who are running the Holset combo and swear by it. Looking for thoughts from others. Let me know your thoughts, pro and con.

  2. #2
    Medium Load Member
    Member Since
    Jan 2011
    Trucker?
    No Answer
    Posts
    315
    Thanks
    1
    Thanked: 90 Times
    as for big rigs, dont know,m but coming from the Dmax world, Bully Dog=No no.

  3. #3
    Banned or Retired
    Member Since
    Dec 2008
    Trucker?
    No Answer
    Posts
    2,755
    Thanks
    202
    Thanked: 1,994 Times
    I've seen too many trucks show up at dyno cntests with Holset turbos on them that did not build good power for the parts on the engine. Power is usually down 100-125 hp to the tires. The reason for this is the exhaust housing is very restrictive and creates high drive pressure versus boost pressure. The engine will build 55 psi of boost but have 65-70 psi of exhaust back pressure in the exhaust manifold before the turbo. If you increase the exhaust housing size to get it to flow properly then they get very sluggish at low-mid engine RPM and build high EGT's whie cruising.

  4. #4
    Bobtail Member
    Member Since
    Feb 2011
    Location
    Illinois
    Trucker?
    7 Years
    Posts
    1
    Thanks
    0
    Thanked: 0 Times

    Contact info

    Mr. Haney how can I get in touch with you.

  5. #5
    Light Load Member Nevs's Avatar
    Member Since
    Dec 2010
    Location
    flyover country (Iowa)
    Trucker?
    39 Years
    Posts
    295
    Thanks
    70
    Thanked: 99 Times
    Mr. Haney, any experience with the Bully Dog turbo?

  6. #6
    Banned or Retired
    Member Since
    Dec 2008
    Trucker?
    No Answer
    Posts
    2,755
    Thanks
    202
    Thanked: 1,994 Times
    Yes, I know how to build a Bully Dog Stage 1 turbo for the CAT application.

    It is a very good turbo up to 700-725 hp. Very fast response with a newer design ETT compressor wheel. Balance between the exhaust back pressure and boost psi is 1:1 through out the complete RPM range.

    The problem is getting the components to build one. The parts aren't readily available depending on the distributors inventory at times. I'd have to make some phone calls to see if the parts are available and prices if you're interested in one.

  7. #7
    Have a Cup Of Concrete
    Member Since
    Apr 2008
    Trucker?
    No Answer
    Posts
    920
    Thanks
    4,232
    Thanked: 4,109 Times
    Quote Originally Posted by Mr. Haney View Post
    I've seen too many trucks show up at dyno cntests with Holset turbos on them that did not build good power for the parts on the engine. Power is usually down 100-125 hp to the tires. The reason for this is the exhaust housing is very restrictive and creates high drive pressure versus boost pressure. The engine will build 55 psi of boost but have 65-70 psi of exhaust back pressure in the exhaust manifold before the turbo. If you increase the exhaust housing size to get it to flow properly then they get very sluggish at low-mid engine RPM and build high EGT's whie cruising.
    is this the HX60 non WG as used on the n-14 525, the hx60 non wg with small exh hsg used on early signatures or the later HX60WG used on later signatures?

  8. #8
    Banned or Retired
    Member Since
    Dec 2008
    Trucker?
    No Answer
    Posts
    2,755
    Thanks
    202
    Thanked: 1,994 Times
    Quote Originally Posted by Donk View Post
    is this the HX60 non WG as used on the n-14 525, the hx60 non wg with small exh hsg used on early signatures or the later HX60WG used on later signatures?
    Holset part number is 3801919. I believe it is off the N-14 460-525 hp range, it is a non-wastegated 26 CM exhaust housing.

  9. The Following User Says Thank You to Mr. Haney For This Useful Post:


  10. #9
    Light Load Member
    Member Since
    Sep 2008
    Location
    MIDLAND, NC
    Trucker?
    20 Years
    Age
    44
    Posts
    228
    Thanks
    3
    Thanked: 109 Times
    Any thing can go wrong with any manufactor,but I have seen Holsets come apart on the air side and literally saw the air cover off and leave it dangling by the innercooler piping...so I tend to stick with other manufactors. The Turbos Mr. Haney is speaking of work well.

  11. #10
    Heavy Load Member SmokinCAT's Avatar
    Member Since
    Oct 2010
    Location
    Hillsboro, OH./ Adrian, MI
    Trucker?
    WannaBe
    Posts
    836
    Thanks
    32
    Thanked: 259 Times
    Quote Originally Posted by Donk View Post
    is this the HX60 non WG as used on the n-14 525, the hx60 non wg with small exh hsg used on early signatures or the later HX60WG used on later signatures?
    I believe everyone of the pictures I have seen of a conversion is a HT60, personally I think the HX60 would be a better option than what they sell, but it still doesn't match the performance of the Borg-Warner turbos.

    The thing I always look at with holset is that they haven't released a new medium or large frame turbo in the last 10 or so years it seems like, there stuff works, but Garrett and Borg-Warner are leaving them in the dust with their newer products.