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  1. Replies
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    Crankcase doesn't see the exact same pressure or...

    Crankcase doesn't see the exact same pressure or vacuum everywhere so distance to the source is the driver...………...
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    You can lead a horse to water but you cant force...

    You can lead a horse to water but you cant force it to drink!
  3. Replies
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    Check your messages on Facebook

    Check your messages on Facebook
  4. Replies
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    2,686

    Check message on Facebook

    Check message on Facebook
  5. Replies
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    http://www.boatracingfacts.com/forums/showthread.p...

    http://www.boatracingfacts.com/forums/showthread.php?9841-The-new-Komato-Hatchet-lower-unit&highlight=KOMATO

    a 7/8" plate with eccentric counterbore makes a waterpump. See Bass water Pump.
  6. Chances are if you don't have patents your just a...

    Chances are if you don't have patents your just a CAD Jockey...…………………….
  7. part of the puzzle

    Well here's part of the puzzle
  8. it canbe done but........

    Can you afford it?????????????

    Get a Yamaha 30 Triple
  9. Howard Richards RED can run a wave based...

    Howard Richards RED can run a wave based simulation using DYNOMATION. As far as Crossflows go he has experience and at one time ran shop at Second Effort.
    I would go to Looper Engine since they will...
  10. oh well guess you can't. I don't grind I modify...

    oh well guess you can't.
    I don't grind I modify to purpose driven specs in order to gain performance for a specific application.
  11. Show me

    quantify
    "too wide" if you can.
  12. quantify

    do you have any pictures?
    what is "so much" ?
    Prop engines turn more than 15,000rpm.....
  13. What does "Big Ports" mean ? The Wave Simulation...

    What does "Big Ports" mean ?
    The Wave Simulation Software simulates waves in, out and thru the engine.
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    carbs sold / heads available in future

    carbs sold / heads available in future
  15. Wave Simulation 8hrs later will, Empirical...

    Wave Simulation 8hrs later will, Empirical Formula driven wont...……..
  16. Replies
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    Evinrude 70 hp Intake Carbs and Primer

    these will help

    https://w68072ww.ebay.com/itm/132688744642?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2648



    Carbs/intake gone sold
  17. I haven't seen a complete port map ever posted...

    I haven't seen a complete port map ever posted here and wondered if nyone really has a clue as to what one liiks like. OEMs use dynomation two-stroke to design new engines. I wrote excel spreadsheet...
  18. What information is required to run a meaningful Engine simulation

    Ever wonder what a real port map looks like?
    Need one to run Dynomation Simulation
  19. Replies
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    Oops

    Wrong thread
  20. Replies
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    reverse engieering

    6280062799 close enough to "modify" it is tapered
  21. Replies
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    12,957

    yep

    yep
  22. Replies
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    this is for etec 90ho - 75hp triple, looks really...

    this is for etec 90ho - 75hp triple, looks really close..................................get gasket #6 to verify
    ...
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    call inland jet

    I talked to the mechanic at inland Jet before he died.
    It is a great pipe.

    The owner is friendly and helpful am sure he will help you.
  24. Replies
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    56 Carbies

    The late model 56ci Omc triples 70hp went to a 1-7/16 dia carb after OMC realized the 1-1/2" was not necessary to make 70hp.
    The late model 2 cyl's continued to use the 1-1/2 big carbss and will fit...
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    check this out

    6277362772627726279262773
    Small World 90hp etec triple tuner right in the middle.
    There is a to of theory behind the geometry but it is a good picture...
  26. Replies
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    get some pics and look. cut off stock and get...

    get some pics and look. cut off stock and get some square tube and make a cowbell.
    as far as intake you are giving up a lot there................
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    stock powerhead with 2bbls

    62771

    added a lot of punch out of turns
  28. Replies
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    you need 3 of these

    find 3 of these 62770
    http://www.ebay.com/itm/SMA5169-Evinrude-BRP-Etec-2011-reed-plate-assembly-5007349-0353266-outboard/291985032429?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649
    ...
  29. Replies
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    depends

    mill head to sst 60 specs, "big carbies" , sst 60 style tuner w/ dry exhaust, front half work w/good cages = tick over a hundred been done before....
  30. yes it is very important especially when "making"...

    yes it is very important especially when "making" a intake to keep the bearing oil feature...........
  31. Compression relief to make starting easier, has...

    Compression relief to make starting easier, has miniscule effect while engine is operating..........
  32. Replies
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    In the VIDEO the Evinrude 45ss Osa ran had the...

    In the VIDEO the Evinrude 45ss Osa ran had the original 45ss Gearcase with a 12p tunnel boat prop.

    I mentioned to Osa that a nitro foot w/low water pu & 11 x 21 would carry that V-hull and not...
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    I just thought Osa is really brave to take that...

    I just thought Osa is really brave to take that thing out in open waters and hop over waves with it. He was undefeated in that little boat.

    Ya if Osa went up with the set up and allow the 12p...
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    OMC 45ci Twin Performance on V-Bottom

    go to https://www.youtube.com/watch?v=gnqr7C2jcuY

    One of my modified 45ss Engines on mini deep vee in Saint Thomas............
    Best Pass of Day was 61mph @ 6,000 rpm w/12p Dewald tunnel boat prop...
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    The 1" venturi 2bbls will light up a stock OMC 50...

    The 1" venturi 2bbls will light up a stock OMC 50 Twin.
    Getting on plane isn't that bad with a light boat.
    Only thing I never did was rig a PROGGRESIVE throttle to open one barrel at a time.
    There...
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