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  1. #11
    Registered Scarab3DMC's Avatar
    My Boats:
    Call me "Shockwave Dave!"
    Join Date
    Apr 2001
    Boynton Beach FL


    I agree with OB.. used them two years.. less soot .. easy starts..great performance....

  2. #12
    32' SUNSATION Platinum Member Kanookstr's Avatar
    My Boats:
    2004 SUNSATION 32'
    Join Date
    Feb 2001
    I think there fantastic!!! I switched to them 2 seasons ago, and the start ups, and no wake runs are smoother. They never fouled, and I havn't seen any black soot ever sence.
    It's a good thing water isn't Flammable..... It catch FIRE!!!!τΏτ

  3. #13
    Registered HyperBaja's Avatar
    My Boats:
    1990 Baja 190 DSR
    Join Date
    Sep 2002
    Lewis Center, Ohio
    NGK wont foul.

  4. #14
    Platinum Member Platinum Member mcollinstn's Avatar
    My Boats:
    1991 F311SR1
    Join Date
    Sep 2001
    All plugs "can" foul. With today's high voltage electronic ignitions, though, most any spark plug of the proper heat range will be incredibly foul-resistant when compared with plugs in the "leaded fuel and points and condenser" days...

    About the only time you will see plug fouling in a modern unmodified motor is when the plug wires, coil, or other ignition component is breaking down (failing), when the fuel mix has become horribly rich, or if the motor is passing oil into the combustion chamber.

    splitfires have two electrode tips from which to spark. Completely unneccessary when the "one" you normally have is not contaminated with gunk of some sort.

    Clean up idle quality? Maybe. Won't argue with that.
    Give more topend HP? No way. I don't buy it.

    Now, if you are comparing NEW splitfires and wires to OLD plugs and wires, then sure, I'll buy that. If you compare NEW splitfires with NEW AC's (or Champions or NGKs or Motorcrafts...) then I just don't buy into it.

    Whatever you use, get resistor plug equivalents to the Merc plug.

    By the way, I've got an old Husqvarna 390 with a Motoplat CDI ignition and a Bing side-float carburetor. Bring me any plug you want and I promise I can foul it for you... (Hyper, this bike was outdated before you were even born).
    I see London, I see France...

  5. #15
    OSO Moderator Charter Member BillR's Avatar
    My Boats:
    '00 Scarab Sport 302 CC
    Join Date
    Oct 2000
    Virginia Beach, VA
    I ran them on my last boat. I was a 502MAg. They made the idle smooth out and I swear they added a touch more response. Black transom crap was greatly reduced. I would not hesitate to use them again.

    '00 Scarab Sport 302 CC
    '02 Cigarette Top Gun TS
    '02 PQ 340
    '00 PQ 280
    '98 Scarab 22
    '97 Baja Outlaw 20
    '72 Checkmate
    '65 Glastron

  6. #16
    Jan is offline
    Member "69" Charter #70 Charter Member Jan's Avatar
    My Boats:
    Join Date
    Oct 2000
    Lake Murray, South Carolina
    I have run Rapid Fire #1's for 3 seasons, they DID reduce Black Transom Disease. Really no performance improvement.

    454 MAG MPI.


  7. #17
    Join Date
    Oct 2000
    Has anyone tried them in a HP500EFI? Thanks, Denny

  8. #18
    MTI / MTI-V VIP Member Tim G.'s Avatar
    My Boats:
    Building boats for you
    Join Date
    Jan 2003
    Ft. Lauderdale, FL

    Rapid Fires

    So the Rapid Fire #1 is what will work in my '99 502 Mags???
    These are probably available at Auto Zone or Discount Auto, Right?

    I do get nasty transom soot on the platform and glass.. It's worth a try.. I know they're about $6.00 each... Man, I''ll have to pass on that case of Guinness. $

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