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350 Cummins Small cam turbo needed

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mile marker 27, Aug 23, 2023.

Page 2 of 2
  1. Aug 27, 2023 #11
    mile marker 27

    mile marker 27 Road Train Member

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    I’d consider grinding the v band down to a hose barb and that’d be quick and easy, but was told that’d void the warranty on the turbo. We’re not really sure on the cruise speed and rpm. Truck has 4:44 rears but that’s gonna change to something between 4:11’s and 3:73’s. I do want to keep the rpm’s up slightly higher than a big cam, because it is a small cam.
     
    mile marker 27, Aug 27, 2023
    mile marker 27, Aug 27, 2023
    #11
    W923 Thanks this.
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  3. Aug 28, 2023 #12
    W923

    W923 Road Train Member

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    Probably would so maybe not the best idea
    This elbow would maybe work if you modified the cross over pipe…but it’s not very round across the top of the engine. The elbow comes from many trucks with n14 and air to air coolers IMG_5493.jpeg IMG_5494.jpeg IMG_5492.jpeg
     
    W923, Aug 28, 2023
    W923, Aug 28, 2023
    #12
    mile marker 27 Thanks this.
  4. Aug 28, 2023 #13
    mile marker 27

    mile marker 27 Road Train Member

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    Local salvage yard has those N14 90’s, 45’s and straight’s. I’m gonna cut one of those down to 1” plus the v-band and trim off about .75” on the crossover pipe. That’s the plan, at least.
     
    mile marker 27, Aug 28, 2023
    mile marker 27, Aug 28, 2023
    #13
    W923 Thanks this.
  5. Aug 28, 2023 #14
    W923

    W923 Road Train Member

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    Should work pretty well especially if you start with a straight on.
    I would also suggest something to hold the crossover pipe to the turbo especially if you’re not going to put some type of barb on it
     
    W923, Aug 28, 2023
    W923, Aug 28, 2023
    #14
  7. Aug 28, 2023 #15
    W923

    W923 Road Train Member

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    Why not get a housing for the turbo from the salvage yard instead and then keep the new housing in a box in case you need to warranty it
     
    W923, Aug 28, 2023
    W923, Aug 28, 2023
    #15
    mile marker 27 Thanks this.
  8. Aug 31, 2023 #16
    W923

    W923 Road Train Member

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    Did you come up with a solution?
     
    W923, Aug 31, 2023
    W923, Aug 31, 2023
    #16
  9. Sep 1, 2023 #17
    mile marker 27

    mile marker 27 Road Train Member

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    Yes sir, all plumbed up. Took some fabricating but it’s done.
     
    mile marker 27, Sep 1, 2023
    mile marker 27, Sep 1, 2023
    #17
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