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Thread: What's the difference... (plugs)

  1. #1
    Join Date
    Jan 2005
    Location
    Ashland, Oregon
    Posts
    253

    Default What's the difference... (plugs)

    between the bosch F7LDCR and the F7LDC+

    also the NGK BKR6EK and the BKR6EQUP?

    94 540i / 255k / 165k on the alusil / E.A.T. chip / Power Discs w/Akebono Pro Ceramic / E39 type 33's

    -Brandon G

  2. #2
    Join Date
    Dec 2003
    Location
    baton rouge, loserana
    Posts
    6,922

    Default

    if nobody hits on it before i get to work monday ill look it up in our books, i can't remember all of the odd little differences
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  3. #3
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,843

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    they sent me the +, seems to be fine and my infamous CEL light now goes off most the time.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  4. #4
    Join Date
    Oct 2004
    Posts
    3,395

    Default

    I don't remember the physical difference on the NGK plugs, but the EQUP goes into M52/54, and the EK goes into M62s.

    Given the alphanumeric designations, there won't be any significant operating characteristic differences beyond the amount of electrode surface area. I didn't know they made a F7LDC+. From what I can tell, the difference between it and the DCR is the existence of a (R)esistor in the latter.

    best, whit

  5. #5
    Join Date
    Aug 2005
    Posts
    593

    Default

    Do you know about BKR6EY and BPR6EY NGK plugs? Attached is a picture of one of them. Don't remember of which one.
    Will they fit my engine?
    Attached Images Attached Images  
    1994 520i with M50 engine, manual transmission and air conditioner.
    VIN: GG45422

  6. #6
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,843

    Default

    the center electrode looks to be larger in diameter on the Bosch + plugs copared to the old "R" plugs I pulled out.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

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