Propulsion

Discuss marine engines, drives, and propulsion systems.

  1. Props

    Propeller selection, performance comparison, prediction, experience, and modification.
    Discussions:
    543
    Messages:
    6,436
    RSS
  2. Surface Drives

    Surface Drives. Arneson, BPM, Seafury, PSI, Levi, Etc.
    Discussions:
    186
    Messages:
    2,864
    RSS
  3. Jet Drives

    Jet Drives (pumps, impellers, etc.)
    Discussions:
    463
    Messages:
    4,452
    RSS
  4. Outboards

    2-stroke and 4-stroke outboard motors.
    Discussions:
    1,045
    Messages:
    10,068
    Latest: Need help please 70hp Johnson Derrick O, Jul 9, 2025 at 1:11 AM
    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:
    549
    Messages:
    3,839
    Latest: Stern Powr Parts Laurence Bellamy, Aug 3, 2024
    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:
    540
    Messages:
    5,009
    RSS
  8. Diesel Engines

    Diesel Engines
    Discussions:
    691
    Messages:
    8,627
    Latest: Insight in diesel Luhrs 28 re-power 7228sedan, Jul 13, 2025 at 9:28 AM
    RSS
  9. Gas Engines

    Gasoline Engines
    Discussions:
    423
    Messages:
    4,652
    RSS
  10. Electric Propulsion

    Electric propulsion systems
    Discussions:
    106
    Messages:
    2,119
    RSS
  11. Hybrid

    Hybrid propulsion such as diesel electric, hydraulic.
    Discussions:
    211
    Messages:
    5,275
    RSS
  12. DIY Marinizing

    A forum to discuss "do it yourself" marinizing of engines / conversion of automotive engines to marine use.
    Discussions:
    276
    Messages:
    5,578
    RSS
Sort By:
Title
Replies Views
Last Message ↓
  1. Kasun Athukorala
    Replies:
    4
    Views:
    286
  2. Patrick_Yucca
    Replies:
    20
    Views:
    3,070
  3. stijnlombaerts
    Replies:
    4
    Views:
    814
  4. exfnaval
    Replies:
    6
    Views:
    1,180
  5. brian eiland
    Replies:
    86
    Views:
    108,717
  6. Sea Monkey
    Replies:
    4
    Views:
    1,591
  7. wroc
    Replies:
    18
    Views:
    2,077
  8. Jason Rodgers
    Replies:
    6
    Views:
    1,344
  9. DaveAtAmazingGrace
    Replies:
    9
    Views:
    1,636
  10. Mark Klep
    Replies:
    1
    Views:
    1,101
  11. scav000
    Replies:
    3
    Views:
    2,417
  12. cmb1998
    Replies:
    11
    Views:
    2,005
  13. David Swingler
    Replies:
    9
    Views:
    2,298
  14. DCockey
    Replies:
    5
    Views:
    2,676
  15. paticus
    Replies:
    13
    Views:
    3,205
  16. paticus
    Replies:
    17
    Views:
    3,425
  17. Guillermo
    Replies:
    579
    Views:
    196,336
  18. MarkOHara
    Replies:
    5
    Views:
    2,158
  19. naserrishehri
    Replies:
    16
    Views:
    4,529
  20. valter.f
    Replies:
    15
    Views:
    4,242
  21. Flat bottom girl
    Replies:
    2
    Views:
    2,166
  22. Forecaddie
    Replies:
    8
    Views:
    1,793
  23. BigMuddy
    Replies:
    22
    Views:
    7,296
  24. rivergybsy
    Replies:
    3
    Views:
    2,026
  25. TheyCallMeTrinity
    Replies:
    28
    Views:
    6,943
  26. Andy58
    Replies:
    9
    Views:
    2,534
  27. telak
    Replies:
    17
    Views:
    4,721
  28. mackid068
    Replies:
    38
    Views:
    12,844
  29. emrecantasdemir
    Replies:
    6
    Views:
    2,095
  30. DogCavalry
    Replies:
    9
    Views:
    2,509
  31. Ruffner Sedurifa
    Replies:
    10
    Views:
    2,551
  32. Kirk
    Replies:
    15
    Views:
    12,877
  33. DCockey
    Replies:
    4
    Views:
    3,480
  34. captdon65
    Replies:
    10
    Views:
    6,503
  35. alby joy
    Replies:
    11
    Views:
    4,627
  36. LePrince
    Replies:
    6
    Views:
    2,594
  37. Guest625101138
    Replies:
    588
    Views:
    146,445
  38. Rasmith
    Replies:
    7
    Views:
    3,655
  39. HeyK20
    Replies:
    3
    Views:
    3,403
  40. yipster
    Replies:
    34
    Views:
    42,924

Thread Display Options

Loading...