6nz ecm on bxs?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by scarecrow454, Jan 14, 2009.

  1. black_dog106

    black_dog106 Road Train Member

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    Mar 29, 2009
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    :biggrin_2559: :biggrin_25525: Thanks for the laugh Cat nip. Im still snickering over that one....:yes2557:
    Seriously, there are some VERY KNOWLEDGABLE guys in this forum....
     
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  3. Coal Bucket

    Coal Bucket Light Load Member

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    Nov 15, 2008
    Charm City
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    Not tryin to hurt anyones feelins here but.... You can not just stick a 6nz ecm on a bxs even tho the both 70 pin ..... I know, ive done two conversions myself, one for me and one for a friend..... you have to get a 6nz wiring harness both internal and ex ... plus you need a boost sens for a 6nz ( ill have to look at my notes but may also need cam sensor its been awhile since i did theese) the plugs are differnt.... as for the vva's the whole assembly can just be unbolted and removed from the passenger side of the head (completely differnt style than mxs and newer vva's), then remove the oil feed line from pass side rear of head and plug both the head and block ...... if you dont remove the oil feed line youll have high pressure oil spraying almost directly into the breather for the slober tube (most bxs breathers are located on top of the front valve cover) ... you can always get a rocker box for a 6nz wich would fix two problems , the need to plug oil feed line at back of head and the need to butcher your old harness to plug the second injector harness connection .... but its defintly cheaper to cut the plug off and stick it in the hole....Also, an mxs can also be converted with a little more work, but im not going to get into that now....Just so yall just dont think im talkin out my ### about this, there is someone on here who knows ive done the the conversion , if he wants to admit that he knows me.. i wouldn't:biggrin_2554:
     
  4. Coal Bucket

    Coal Bucket Light Load Member

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    Nov 15, 2008
    Charm City
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    O and your right Mr. H the twins will cause a derate on the 6nz ecm... you wont belive the boost theyll make with a good 6nz or 7cz ecm..... better get an 80# gauge if you dont allready have one....:biggrin_25525:
     
  5. ROBSREDFORD

    ROBSREDFORD Light Load Member

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    Sep 2, 2008
    MIDLAND, NC
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    don't know Coal Bucket at all, but he is correct on the conversion, its not a simple bolt on....and his instructions are correct...I've never seen this post to reply.

    rw
     
    Coal Bucket Thanks this.
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