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  1. #1

    Ultra 250x plug gap

    Manual says .024 to .028. Aftermarket book says .032 so what do you guys gap your plugs at?


  2. #2
    nicjak's Avatar
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    you shouldnt have to gap 9bpmr plugs

  3. #3
    I ordered those and they are coming tomorrow, so dont gap them when they get in your saying? I had the CR9EK did not gap at first then went to .032 still ran for crap no matter the gap, then tried the CR9EIX ungapped which ran much better but I ordered the good stuff anyways to make sure my initial problem was not plug related. The PMR9B plugs should be in tomorrow but of course I need an intercooler first

  4. #4
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    I allready told you your wasting your money. The cr9eix plug is the best plug other then oem you can use. There is no gain to be had by the pmb plugs. Your just wasting money.

  5. #5
    You also said the CR9EK would be fine too, but I managed a 10mph gain with the EIX. I just want it to run right, I can take the other plugs back but if the PMB is best I will use them.

  6. #6
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    Quote Originally Posted by Jessie00721 View Post
    You also said the CR9EK would be fine too, but I managed a 10mph gain with the EIX. I just want it to run right, I can take the other plugs back but if the PMB is best I will use them.
    That's because the plugs where obviously bad not because those plugs don't work. Theres many that run those plugs.

  7. #7
    Thats what I read, I get a lot of conflicting info.

  8. #8
    nicjak's Avatar
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    tommy his plugs are bad because he has a leaking i/c no matter what plug he uses will give the same results. its never conflicting info its what people choose to read and believe on the internet and there are always other problems that are never mentioned that can be the root cause.

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