Propulsion

Discuss marine engines, drives, and propulsion systems.

  1. Props

    Propeller selection, performance comparison, prediction, experience, and modification.
    Discussions:
    513
    Messages:
    6,039
    RSS
  2. Surface Drives

    Surface Drives. Arneson, BPM, Seafury, PSI, Levi, Etc.
    Discussions:
    177
    Messages:
    2,705
    Latest: Large Surface Drives Fred Etheridge, May 27, 2022 at 12:06 AM
    RSS
  3. Jet Drives

    Jet Drives (pumps, impellers, etc.)
    Discussions:
    449
    Messages:
    4,317
    Latest: Jet DIY anthony goodson, May 26, 2022 at 5:16 AM
    RSS
  4. Outboards

    2-stroke and 4-stroke outboard motors.
    Discussions:
    1,010
    Messages:
    9,660
    Latest: Momentary drop in RPM Carlazzomark, May 27, 2022 at 12:52 PM
    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:
    543
    Messages:
    3,801
    RSS
  6. Pod Drives

    Volvo IPS, ZF, CMD Zeus, and other pod-drive systems
    Discussions:
    29
    Messages:
    299
    RSS
  7. Inboards

    Inboard and Vee-drive hardware: struts, stuffing boxes, transmissions, coolers
    Discussions:
    528
    Messages:
    4,906
    Latest: Engine cooling water turbulence kapnD, Mar 11, 2022
    RSS
  8. Diesel Engines

    Diesel Engines
    Discussions:
    668
    Messages:
    8,393
    Latest: Ysm8 sail drive? Scuff, Feb 19, 2022
    RSS
  9. Gas Engines

    Gasoline Engines
    Discussions:
    416
    Messages:
    4,624
    RSS
  10. Electric Propulsion

    Electric propulsion systems
    Discussions:
    81
    Messages:
    1,405
    RSS
  11. Hybrid

    Hybrid propulsion such as diesel electric, hydraulic.
    Discussions:
    210
    Messages:
    5,249
    RSS
  12. DIY Marinizing

    A forum to discuss "do it yourself" marinizing of engines / conversion of automotive engines to marine use.
    Discussions:
    274
    Messages:
    5,526
    Latest: Marinize a Subaru? DogCavalry, Aug 9, 2021
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  15. boat3630
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  16. marufuddin0
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  17. aybabtme
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  18. brian eiland
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  19. CAPT. Ted
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  20. AAn
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  21. hlblake
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  22. Manateeman
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  23. Bradleylarkin
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  26. UNCIVILIZED
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  28. JunkRat
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  30. brian eiland
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  32. Vronsky
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  33. IronTom
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  34. Victor R
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  35. Adarsh Edakkote
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  36. michael smith
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  37. michael smith
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  38. highlandhoh3
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  39. brian eiland
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    Views:
    97,236
  40. Dr34m3r
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