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BKR5EIX-11 vs BKR4EIX-11

Discussion in '1st Gen. Tacomas (1995-2004)' started by nxrunner, Mar 18, 2015.

  1. Mar 18, 2015 at 7:28 AM
    #1
    nxrunner

    #1
    nxrunner [OP] Well-Known Member

    Joined:
    May 20, 2012
    Member:
    #79221
    Messages:
    119
    Gender:
    Male
    First Name:
    Nick
    Lafayette La.
    Vehicle:
    2015 Tacoma Double Cab 6 Speed
    Im currently running the NGK BKR5EIX-11 iridium plugs. Most of the egr, pollution devices, catalytic converter, etc has been deleted. The truck runs rich, so I was wondering if I could go one step colder and use the BKR4EIX-11. The truck runs a little rough at idle and blows some black soot out under heavy acceleration. Please advise if these plugs will work. Im worried that they may hit the top of the piston or make my issue worse by pinging the engine. Please advise.
     
    nxrunner, Mar 18, 2015
    #1
  2. Mar 18, 2015 at 7:32 AM
    #2
    opteron

    #2
    opteron Well-Known Member

    Joined:
    May 27, 2014
    Member:
    #130756
    Messages:
    1,345
    Gender:
    Male
    whittier, CA.
    Vehicle:
    2003 DB 4x4 SR5
    Leer camper, bug-rug, fox suspension 2.0 rear, fox 2.5 front, BAMF sliders and LCA, TRD fake 3 piece rims
    Year of Tacoma and engine?
     
    opteron, Mar 18, 2015
    #2
  3. Mar 18, 2015 at 9:28 AM
    #3
    nxrunner

    #3
    nxrunner [OP] Well-Known Member

    Joined:
    May 20, 2012
    Member:
    #79221
    Messages:
    119
    Gender:
    Male
    First Name:
    Nick
    Lafayette La.
    Vehicle:
    2015 Tacoma Double Cab 6 Speed
    Oh Sorry I forgot to post. 99 tacoma 2.4
     
    nxrunner, Mar 18, 2015
    #3

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