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  1. Replies
    13
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    9,374

    mid

    Unless you have a thrust socket for the gearcase this tower will be very springy fore and aft due to the shallow angle of the kickout adjuster. Unless the body fit of the bolts in the adjuster and...
  2. Thread: Piston port

    by mac19f
    Replies
    40
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    20,442

    3rd porting

    "Adding piston porting to a reed valve motor does not seem to make any measurable power increase."

    So why were there so many 3rd port Quincy engines built? I know OF Christner verified all his...
  3. Replies
    30
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    26,317

    Kings Ferry

    I remember the day Charlie Lee was killed. That was one strong running 1350. I recall the wreck occurred between him and Sonny Lee???

    There was an orange and white glass tunnel boat that may...
  4. Thread: Old HotRodder

    by mac19f
    Replies
    61
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    22,783

    40 hp Johnson

    The first year 40hp engine(1960) had a weak crank. Johnson offerred to replace all of the powerheads under warrantee with the next year's powerhead with a stronger crank. Some people did; some...
  5. Thread: B Looper

    by mac19f
    Replies
    65
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    34,336

    B Looper Crankcase

    This conversation was at the first AOMCI meet at Cypress Gardens sometime in the mid 1990's. I asked the question and you responded that you did not think any were made that way. OF responded that...
  6. Thread: B Looper

    by mac19f
    Replies
    65
    Views
    34,336

    B Looper Crankcase

    Paul, you probably don't remember a conversation I was party to with you and your dad at Cypress Gardens AOMCI meet many years ago. I questioned OF about this and he confirmed that indeed some were...
  7. Replies
    383
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    220,963

    Engine #8

    GRM also known as a Rossi. 350cc. I believe this is the first one run in this country by Rossi himself at Cypress Gardens.
  8. Replies
    383
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    220,963

    Martin

    The other Martin production race engine was the "Hi Speed 60". A 6 hp block with some special powerhead goodies and a special racing lower unit. These are far rarer than the Martin 200 engines....
  9. Replies
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    7,119

    Only the tower steers...

    "Unusual engines to add to the list. This one, the powerhead is fixed, only the tower steers."

    With this setup any frictional losses in the gearcase result in driveshaft torque being transferred...
  10. Replies
    46
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    36,271

    1st Rossi

    I was there at Cypress Gardens World Championships. No one expected what we we about to see. This was the first time Roosi had run his new engine here. He didn't just win, he crushed the...
  11. Replies
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    3,389

    Healey

    I love the big Healeys too. Had a BJ8 for many years. Still have a complete engine and several other parts if you know of someone in need.
  12. Thread: Vintage Twin

    by mac19f
    Replies
    9
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    4,452

    Kittson

    It sure is a lot cleaner than when we loaded it up. For years I thought the Kittson was gray from all the dust that was on it. LOL
  13. Replies
    9
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    9,077

    55h

    Is this model all diecast metal? The lower half almost looks like plastic.
  14. Replies
    5
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    3,880

    Trailer Paint

    There is a product called "Trailer Coat" that is used extensively down on the coast around saltwater. It does not require a clean blasted surface for good adhesion, only removal of all loose rust. ...
  15. Replies
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    5,004

    actually....

    It is a complete separate carbureter. It is rotary ported and functions as the low speed carbureter. The side carbureter has no idle circuit and is for high speed only.
  16. Thread: OMC V4 racers

    by mac19f
    Replies
    0
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    2,289

    OMC V4 racers

    Hope someone from back in the day can answer this. I have a KC13R that seems to be original. Did the Evinrudes and the Johnsons both share the KC13R model designation? This engine has an Evinrude...
  17. British Electrical

    Why do the British drink warm beer??....they have Lucas refrigerators.
  18. Thread: B mod cooling

    by mac19f
    Replies
    21
    Views
    8,030

    No problem

    The diameter of the tube has nothing to do with the weight of water causing backpressure on the pump. Only the height matters. On the other hand the larger tube would have less friction loss due to...
  19. Thread: McCullough 60

    by mac19f
    Replies
    14
    Views
    6,371

    McCullough Boats

    Yes they made boats. Actually Scott, their pedecessor company. They made a 15ft fiberglass sit down boat with sponsons that they called a hydro. It was meant to be packaged with their 3 cylinder ...
  20. Replies
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    45,826

    12:15 prop

    Daren,
    I ran that Cmod probably 7 or 8 years ago and don't remember the numbers on the prop. I'd have to see if I can find my race notebook from back then. I remember my best prop was a tulip...
  21. Replies
    120
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    45,826

    Konig Unit

    I've got a half dozen of these units and I have found the gears to be anywhere from perfect to severely worn and broken teeth. Since I don't know the history of how each unit was run I can't say why...
  22. Replies
    120
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    45,826

    Konig Unit

    Look down inside the exhaust hole on top of the unit and see if you don't see one or two allen head screws. These bolt all the way into the cone nut assemble. Some of these "LINKS" units have...
  23. Replies
    103
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    42,845

    Two water tubes.

    One tube is a water return down from the thermostat to help the engine warm up quicker.
  24. Replies
    71
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    52,132

    Mk50 block

    Daren, Yep the VERY early Mk55 blocks were also sandcast like the Mk50 up to serial # 833000. But if I'm not mistaken the exhaust cover was different, more rounded like the later Mk55 blocks. The...
  25. Replies
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    52,132

    parts

    The top block is a Mk50 not a KG9 or MK40. Neither of them had the boss for an electric starter. Plus the exhaust plate is smooth not ribbed--another indication its a Mk50.
  26. Thread: Bolt On H.P.

    by mac19f
    Replies
    24
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    11,148

    Bmep

    BMEP is significantly improved by a clean fuel/air charge with resulting significant power improvement. This is evidenced by the fact that 4 stokes of the same displacement are generally torquier...
  27. Thread: Bolt On H.P.

    by mac19f
    Replies
    24
    Views
    11,148

    Supercharging

    In a 4 stroke engine supercharging or turbocharging results in a higher initial pressure inside the cylinder on the intake stroke before the compression stroke. That is its main contribution to...
  28. Replies
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    19,108

    How you tell the story

    Adolf Hitler said it best: A well told lie is infinitely more palatable than the mundane truth.
  29. Thread: Cool Fuel

    by mac19f
    Replies
    18
    Views
    5,761

    Freezing point

    Water and alcohol together make a solution not a mixture. The water in isopropyl being the lesser amount is the solute and the alcohol is the solvent. So the water will not freeze separately from...
  30. Thread: Cool Fuel

    by mac19f
    Replies
    18
    Views
    5,761

    Dry ice cool can

    It is common when using dry ice in a cool can to use isopropyl alcohol as the liquid.
  31. Replies
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    9,523

    Another one

    There is another Stinger/Strangler gearcase listed on ebay. These are pretty darn rare compared to the Merc racing stuff.
  32. Replies
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    9,523

    Stinger gearcase

    This fits the V4 Johson Stinger, KC13R Evinrude, the Johnson Stinger GP and the Evinrude Super Strangler (KR15M)
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