Mercury KG 7 speed

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  • May 14, 2015 at 1:41 am #1484
    mercuryman
    Participant

      How fast will a Mercury KG7H go on a Hydroplane or Class B utility?

      May 14, 2015 at 2:59 am #15904
      dave-bernard
      Participant

        US Member

        high 40’s low 50’s without a problem.

        May 14, 2015 at 3:25 am #15907
        r-c
        Participant

          Lifetime Member

          This is like asking who will win the next election. What boat do you have? What prop(s) do you have? What set-up do you have? There is a four part situation to going fast. The driver, the boat, the engine and the prop.
          Based on the 1953 APBA rule book here are some facts. 1 mile record 53.321 mph with a Fox (would believe to be homemade as the drivers name is Clay Fox.). 5 mile competition record 46.936 mph, for a hydro again a homemade Jacobsen (Bob). The utility is 49.459 in a mile with a Sid-Craft and 43.859 with a Speedliner in competition. If you get 40 mph going down hill with a good wind behind you, be happy.

          May 14, 2015 at 9:30 pm #15966
          dave-bernard
          Participant

            US Member

            I had a home made crude hydro with a KG7H that ran 52 mph in 1960ish. just a play toy not a real racer.

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