What is needed to convert KPV2 to KPV3?

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    • August 1, 2013 at 7:37 pm #5765
      Rod Hawkins
      Participant

      Thinking of purchasing a couple KPV2 but I need to convert them to a kpv3.

      As I understand it, the pipe is different (is it simply 3 holes vs 2 holes, and if so, could another hole just be drilled?), the header is different and the timing might be different? Is the carb and its adjustments different as well?

      TIA, I am still new to all of this.

    • August 1, 2013 at 9:33 pm #5777
      TJ Koyen
      Moderator

      Just the pipe is different. Probably not wise to drill a hole in a spec exhaust.

      But just grab a 3 pipe and throw it on and you should be fine. You can run a bit more RPM with the 3 pipe compared to the 2.

      Driver/Coach/Wrench : Innovative Performance/Exprit
      Owner : Oktane Visual - www.oktanevisual.com
      www.facebook.com/oktanevisual
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    • August 1, 2013 at 9:44 pm #5779
      Rod Hawkins
      Participant
      TJ Koyen wrote:

      Just the pipe is different. Probably not wise to drill a hole in a spec exhaust.

      But just grab a 3 pipe and throw it on and you should be fine. You can run a bit more RPM with the 3 pipe compared to the 2.

      TJ,

      Thanks for the reply, it is extremely hard to find any info on these things by doing a google search. Just doesn’t seem to be that much info out there. So just to be clear:

      Pipe: switch from kpv2 to KPV3
      Header: keep same
      Carb: keep same and no adjustments
      Timing: keep the same

      Trying to find a used one, eBay doesn’t seem to have any and the classifieds on this forum have crawled to a snails pace since the forum change.

    • August 2, 2013 at 6:16 am #5794
      TJ Koyen
      Moderator

      Yup, sounds right to me. Maybe some engine builders like to build an engine a little differently for the 3 pipe, can’t remember, but you can throw the 3 pipe on there with no issues. Carb settings are the same, around 2 – 2 1/4 on the low and 1/8 to 1/4 on the high. Not sure how you have your carb setup now, but usually we’d start the low at 1 1/2 on the grid to get rolling and once we started getting up to speed we’d open to 2 or 2 1/4.

      Header is the same.

      Classified section is a bit empty at the moment. Check your local shop or with other guys at the track who run the class. I’m sure at least one of them has a collection of used 3 pipes laying around.

      Driver/Coach/Wrench : Innovative Performance/Exprit
      Owner : Oktane Visual - www.oktanevisual.com
      www.facebook.com/oktanevisual
      www.instagram.com/oktanevisual

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