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Thread: 240z Plugs

  1. #1
    Join Date
    Feb 2001
    Location
    Atlanta, Ga
    Posts
    631

    Default 240z Plugs

    What are you running?
    And why?
    Current car has Denso Iridium IQ24's

  2. #2
    Join Date
    Dec 2005
    Location
    Port St. Lucie, FL
    Posts
    354

    Default

    Quote Originally Posted by Tom Donnelly View Post
    What are you running?
    And why?
    Current car has Denso Iridium IQ24's
    We run the NGK's in I believe the stock heat range. As regularly as we like to replace the plugs it's more economical, and we have occasionally had problems with some of the more expensive plugs (don't recall brand) cracking anyways.
    Chris Carey

    Central Florida Region
    ITS/Vintage Datsun 240Z

    Favorite tool to remove undercoating---- A curb!

    "Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car.
    Horsepower is how fast you hit the wall, torque is how far you take the wall with you."

  3. #3
    Join Date
    Nov 2005
    Location
    Rocket City, Alabama
    Posts
    607

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    BPR6ES and BPR7ES. My car came with Champions, I use NGK exclusively now.

    Here is a link to Keith's suggestons

    https://improvedtouring.com...highlight=plug
    Paul Ballance
    Tennessee Valley Region (yeah it's in Alabama)
    ITS '72
    1972 240Z
    "Experience is what you get when you're expecting something else." unknown

  4. #4
    Join Date
    Jan 2003
    Location
    Rock Hill, SC USA
    Posts
    370

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    Bosch Platinum + 4. I use a more expensive plug so I dont have to replace them as often. To me it seems that replacing plugs every 5th weekend vs every other weekend saves money.
    Steve Parrish
    57 ITS Nissan 300ZX

  5. #5
    Join Date
    Sep 2003
    Location
    Livonia,NY,USA
    Posts
    77

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    I run C59 Champions. That's what Rebello dynos the motor with, so that's what I run. Haven't had any issues with. them. Have tried same plug up and down one heat range.
    Dave Ciufo
    Livonia, NY
    ITS 240Z #34
    SM #34

  6. #6
    Join Date
    Mar 2001
    Location
    Acworth, GA USA
    Posts
    455

    Default

    Quote Originally Posted by Parrish57 View Post
    Bosch Platinum + 4. I use a more expensive plug so I dont have to replace them as often. To me it seems that replacing plugs every 5th weekend vs every other weekend saves money.
    Saves even more money if you never replace them. Now if you got an RX-7, which eats plugs even in street motors, then you might want to budget for regular plug changes. But honestly, bend the ground electrode up a tad so you can get a file on both electrodes and square them up before the ARRC each year and run them for the life of the motor. You might want 2 sets of plugs so you have some choices regarding indexing, but I'd spend your plug money on tires.

    Heck an MSD or similar jillion volt setup will arc right to the top of the piston so you really don't even need a ground electrode. :eek:
    Last edited by kthomas; 10-03-2009 at 09:53 AM.
    katman

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