Propulsion

Discuss marine engines, drives, and propulsion systems.

  1. Props

    Propeller selection, performance comparison, prediction, experience, and modification.
    Discussions:
    433
    Messages:
    4,878
    Latest: Low on rpm, going from four to five blades? Magnus W, Dec 8, 2018 at 10:22 AM
    RSS
  2. Surface Drives

    Surface Drives. Arneson, BPM, Seafury, PSI, Levi, Etc.
    Discussions:
    162
    Messages:
    2,559
    Latest: DIY tunnel drive mikeforboat, Nov 22, 2018
    RSS
  3. Jet Drives

    Jet Drives (pumps, impellers, etc.)
    Discussions:
    423
    Messages:
    3,945
    Latest: Rolls Royce FF Series baeckmo, Dec 2, 2018
    RSS
  4. Outboards

    2-stroke and 4-stroke outboard motors.
    Discussions:
    935
    Messages:
    8,660
    RSS
  5. Sterndrives

    Stern drive lower and upper units, transom and gimbal assemblies, steering, and trim pumps. Mercruiser (Alpha One, Alpha One Generation II, Alpha SS, Bravo One, Bravo Two, Bravo Three, Bravo XR Sportmaster, TRS, Speed Master), IMCO, ILMOR, Konrad, OMC, Volvo Penta
    Discussions:
    530
    Messages:
    3,616
    RSS
  6. Pod Drives

    Volvo IPS, ZF, CMD Zeus, and other pod-drive systems
    Discussions:
    25
    Messages:
    260
    RSS
  7. Inboards

    Inboard and Vee-drive hardware: struts, stuffing boxes, transmissions, coolers
    Discussions:
    508
    Messages:
    4,618
    RSS
  8. Diesel Engines

    Diesel Engines
    Discussions:
    633
    Messages:
    7,952
    Latest: Yanmar 6LPA 315 Duco84, Dec 13, 2018 at 8:21 AM
    RSS
  9. Gas Engines

    Gasoline Engines
    Discussions:
    388
    Messages:
    4,253
    RSS
  10. Electric Propulsion

    Electric propulsion systems
    Discussions:
    37
    Messages:
    692
    Latest: Are electric horses really bigger? Artem Klochko, Dec 11, 2018 at 9:00 AM
    RSS
  11. Hybrid

    Hybrid propulsion such as diesel electric, hydraulic.
    Discussions:
    208
    Messages:
    5,238
    RSS
  12. DIY Marinizing

    A forum to discuss "do it yourself" marinizing of engines / conversion of automotive engines to marine use.
    Discussions:
    269
    Messages:
    5,447
    RSS
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  15. franklou
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  17. xellz
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  18. Singleinboard
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  19. brian eiland
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  20. 91SARATH
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  21. Archangl7
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  22. xellz
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  23. Carter Beall
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  24. kschung
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  25. Leveboat
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  26. ATMHC
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  27. Angle X
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  28. valvebounce
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  29. Squidly-Diddly
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  30. mitchellleary
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  31. Liopleurodon
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  32. DCockey
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  33. 1J1
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  34. Random_user
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  35. brian eiland
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  36. bcobbett
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  37. Timetogo
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    2,064
  38. dwicejama
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    Views:
    720
  39. bluedolfin
    Replies:
    9
    Views:
    1,195
  40. JasonCatt
    Replies:
    1
    Views:
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