Announcement

Announcement Module
Collapse
No announcement yet.

200 mod exhaust mods

Page Title Module
Move Remove Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • 200 mod exhaust mods

    Could someone explain what gets done to the exhaust for 200 mod D and U I decided to put the mariner back on the fishing boat and build this 86 omc 15 I got for 100$
    Could someone explain the exhaust mods for 200 mod. D and U
    Last edited by GheenoeRacer; 01-17-2018, 01:18 PM.

  • #2

    Re: 200 mod exhaust mods

    Depends on your setup and whether you need punch or top end. The rule requires the pipe to have the first one inch of original pipe. Then do whatever you wish. However, the best racing setup (in my opinion) is to run the stock pipe with only the hole in its side welded shut. The D hole can be run either as-is or closed - haven't seen a big difference. (Also, close the hole in the side of the water tube.) This setup will run ASH (OMC) props faster. [Don't tell Mikey I'm sharing our 'secrets.']

    ​Fred
    Al Lang, Tim Sidor and 2 others like this.
    Fred Hauenstein

    Comment


    • #3

      Re: 200 mod exhaust mods

      How about the flywheel? Can it be lightened, balanced, polished, or a different one used?

      Thanks for the info

      Comment


      • Fast Freddie
        Fast Freddie commented
        Editing a comment
        Don't touch the flywheel!

      • GheenoeRacer
        GheenoeRacer commented
        Editing a comment
        Oops, sanded and polished already, I’ll have to buy one on eBay. I’m going to run it on the local lakes without cowlings.

    • #4

      Re: 200 mod exhaust mods

      If I remember correctly you have to use the stock flywheel, no balancing or machining

      Comment


      • #5

        Re: 200 mod exhaust mods

        Ports just get squared or raised to spec?

        Comment


        • #6

          Re: 200 mod exhaust mods

          I know it’s not legal but I’d like to build an intake manifold and try a Lectron for fun. Call it canoe unlimited, lol

          Could I use any carb that meets the spec? Like a mikuni?
          Last edited by GheenoeRacer; 01-20-2018, 03:51 PM.

          Comment

          Working...
          X