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T.B.I. on a 225 ??

Discussion in 'Early CJ5 and CJ6 Tech' started by Duke47, Dec 17, 2010.

  1. Dec 17, 2010
    Duke47

    Duke47 Member

    Upstate - South...
    Joined:
    Aug 17, 2004
    Messages:
    78
    TBI on a 225, is that possible ? I know Holley's and Edellbrock's and other carb setups work, but was wondering if a TBI off of a 4.3 or simillar engine would work on a 225v-6 ?
    I'm running a Rochester 2 brl and planing on keeping it that way, just curious.
     
  2. Dec 17, 2010
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    Aug 10, 2003
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    23,596
    Won't work without modification, if that's what you are asking. The 4.3L ECU expects triggers at even intervals, and the odd fire triggers are not. Plus you'll want to reprogram the ECU memory to have look-up tables that are better for the 225.

    You could put a slotted wheel on the crank pulley and add an additional VR sensor to run the ECU from. Or you could run the Megasquirt ECU which can use the uneven trigger from the coil. Do-able, but not as easy as putting the 4.3L stuff on a 258, for example.
     
  3. Dec 17, 2010
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Sep 22, 2002
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    8,360
    You could use the search function here, as this has been covered in depth, many times, over and over, at length, etc..
     
  4. Dec 17, 2010
    Duke47

    Duke47 Member

    Upstate - South...
    Joined:
    Aug 17, 2004
    Messages:
    78
    Thanks timgr
     
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