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Forum: Technical Discussion

The place for mechanics, racers, governing body officials, tech-talk junkies, or anyone seeking engine-related technical help.

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  1. Exclamation Sticky Thread Sticky: New low cost ECU alternative!

    Started by Tony Brucato, 07-21-2006 08:51 AM
    4 Pages
    1 2 3 4
    • Replies: 53
    • Views: 78,951
    02-12-2020, 12:09 AM Go to last post
  2. Sticky Thread Sticky: Alisyn Oil Promotion - Free Shipping On All Orders!

    Started by Scream And Fly, 02-03-2006 04:03 PM
    5 Pages
    1 2 3 4 5
    • Replies: 63
    • Views: 76,940
    04-30-2019, 06:19 AM Go to last post
  1. What does this line do?

    Started by whipper, 05-28-2008 01:04 AM
    4 Pages
    1 2 3 4
    • Replies: 52
    • Views: 21,825
    02-10-2020, 06:30 AM Go to last post
  2. Outboard Exhaust Tuning - Who Did It Best?

    Started by Gordon02, 08-20-2019 11:10 PM
    15 Pages
    1 2 3 4 5 6 7 8 9 10 ... 15
    • Replies: 222
    • Views: 12,589
    01-09-2020, 06:31 AM Go to last post
  3. 2002 Mercury 225 EFI performance mods

    Started by Freedom92, 08-21-2018 10:22 AM
    9 Pages
    1 2 3 4 5 6 7 8 9
    • Replies: 134
    • Views: 8,771
    02-22-2020, 06:10 PM Go to last post
  4. Re-designing merc cooling

    Started by O/B Dude, 03-06-2004 04:09 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 81
    • Views: 5,803
    01-26-2020, 04:37 PM Go to last post
  5. Front half swap

    Started by Merc 2.5, 12-03-2018 01:14 PM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 3,966
    01-03-2020, 05:02 PM Go to last post
  6. Stuck Prop

    Started by Glastron1987, 12-17-2019 08:58 PM
    8 Pages
    1 2 3 4 5 6 7 8
    • Replies: 107
    • Views: 3,734
    01-19-2020, 10:21 AM Go to last post
  7. Mercury Tech: steel or nickasil

    Started by speedinstream, 11-24-2010 09:08 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 3,481
    12-17-2019, 12:52 PM Go to last post
  8. Wmv 18 carbs

    Started by Merc 2.5, 10-29-2019 05:36 PM
    5 Pages
    1 2 3 4 5
    • Replies: 69
    • Views: 3,468
    01-05-2020, 05:35 PM Go to last post
  9. Mercury Tech: Realistic HP increase from Brucato ACU?

    Started by 200valeroyt, 08-02-2014 02:39 PM
    3 Pages
    1 2 3
    • Replies: 30
    • Views: 3,438
    12-29-2019, 05:12 PM Go to last post
  10. Ride guide cable conversion

    Started by outasite, 01-17-2015 08:10 PM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 3,118
    12-10-2019, 09:14 AM Go to last post
  11. OMC Tech: OMC 3.6L V8 shifting problem

    Started by Hanksv, 12-12-2018 03:37 PM
    • Replies: 3
    • Views: 3,112
    01-10-2020, 01:00 PM Go to last post
  12. Deglazing a cyl

    Started by Merc 2.5, 12-24-2019 09:32 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 84
    • Views: 3,033
    01-08-2020, 04:45 PM Go to last post
  13. Mercury Tech: Promax block crack ???

    Started by roadkill636, 11-25-2019 04:46 PM
    4 Pages
    1 2 3 4
    • Replies: 48
    • Views: 2,837
    12-01-2019, 03:04 PM Go to last post
  14. Mercury Tech: 260 Big Bore mystery motors??????

    Started by PaulR, 01-07-2020 06:47 PM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 2,806
    02-10-2020, 04:57 PM Go to last post
  15. Mercury V6 School for lower units

    Started by LakeFever, 07-24-2018 08:07 AM
    4 Pages
    1 2 3 4
    • Replies: 56
    • Views: 2,762
    11-24-2019, 01:03 AM Go to last post
  16. Tan/black port temp sensor wire?

    Started by All9up, 09-01-2019 11:43 AM
    • Replies: 11
    • Views: 2,741
    01-09-2020, 04:34 PM Go to last post
  17. Mariner 200 EFI will not start

    Started by Pond water, 08-09-2019 05:40 PM
    2 Pages
    1 2
    • Replies: 25
    • Views: 2,482
    02-04-2020, 01:42 PM Go to last post
  18. Question Mercury Tech: Merc 3 liter Gurus / rings question

    Started by David Borg, 05-17-2018 09:55 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,435
    12-18-2019, 05:35 PM Go to last post
  19. merc 2.5 injectors

    Started by gguertin145, 09-27-2019 07:39 PM
    3 Pages
    1 2 3
    • Replies: 30
    • Views: 2,377
    11-27-2019, 04:05 PM Go to last post
  20. Need Top Pin Piston Explained

    Started by TNRoostertail, 10-29-2019 01:31 PM
    3 Pages
    1 2 3
    • Replies: 37
    • Views: 2,319
    11-28-2019, 12:11 PM Go to last post
  21. Yamaha Tech: The OX66 EFI Yamaha should have built

    Started by cali kid, 03-09-2015 12:45 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 2,214
    01-19-2020, 08:19 PM Go to last post
  22. 2.4 powerhead trnsplant question

    Started by KIRCHNER, 11-03-2019 04:50 PM
    5 Pages
    1 2 3 4 5
    • Replies: 66
    • Views: 2,205
    12-29-2019, 09:56 AM Go to last post
  23. Chris Carson reeds?

    Started by Pjpoppet, 11-20-2019 10:51 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 2,156
    02-07-2020, 05:43 AM Go to last post
  24. convert HPDI to a OX66

    Started by malcolm, 02-08-2012 10:44 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 2,144
    12-11-2019, 09:32 PM Go to last post
  25. 2.5 150 too cold at idle?

    Started by Blacknsilvr, 09-26-2019 09:07 PM
    4 Pages
    1 2 3 4
    • Replies: 45
    • Views: 2,117
    12-01-2019, 10:59 PM Go to last post
  26. poppit question

    Started by KIRCHNER, 12-04-2019 07:17 PM
    3 Pages
    1 2 3
    • Replies: 30
    • Views: 1,992
    12-12-2019, 05:46 PM Go to last post
  27. 2000 2.5L merc efi hissing sound

    Started by claypoolxx, 11-27-2019 03:41 PM
    • Replies: 12
    • Views: 1,965
    12-03-2019, 08:02 PM Go to last post
  28. Flashed 4 stroke

    Started by 65gamblerman, 11-01-2019 08:05 AM
    3 Pages
    1 2 3
    • Replies: 44
    • Views: 1,940
    11-24-2019, 12:11 PM Go to last post
  29. Mercury Tech: What's been done to this Promax??

    Started by roadkill636, 02-03-2020 09:19 PM
    4 Pages
    1 2 3 4
    • Replies: 55
    • Views: 1,936
    02-22-2020, 01:46 PM Go to last post
  30. ProMax Rebuild

    Started by Hydrodreams, 11-25-2019 10:07 PM
    3 Pages
    1 2 3
    • Replies: 43
    • Views: 1,802
    01-08-2020, 09:45 PM Go to last post
  31. 93 Mercury cowl seal gasket

    Started by Aaronhl, 11-01-2019 06:07 PM
    • Replies: 10
    • Views: 1,771
    02-04-2020, 08:01 PM Go to last post
  32. Octane and oil ratio for 220lbs compression

    Started by tunnelmike, 12-03-2019 08:44 AM
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 1,756
    12-15-2019, 07:13 PM Go to last post
  33. Fuel pump pressure

    Started by Gorilla0178, 02-21-2019 10:42 PM
    • Replies: 11
    • Views: 1,725
    11-18-2019, 10:22 AM Go to last post
  34. First time engine rebuild

    Started by ShadowFlier, 12-08-2019 05:36 PM
    • Replies: 11
    • Views: 1,721
    12-11-2019, 09:47 AM Go to last post
  35. OMC Tech: 3.0 johnson cranking RPM

    Started by Gorilla0178, 09-30-2019 03:51 PM
    3 Pages
    1 2 3
    • Replies: 30
    • Views: 1,658
    12-12-2019, 06:57 PM Go to last post
  36. Welding Cast Alum - mid section -- New Hampshire

    Started by race30, 07-11-2019 09:33 AM
    2 Pages
    1 2
    • Replies: 19
    • Views: 1,626
    12-01-2019, 11:42 PM Go to last post
  37. 85 black max 200 dva results - bad trigger?

    Started by Fstarockr, 10-31-2019 09:58 PM
    • Replies: 12
    • Views: 1,621
    11-18-2019, 12:39 AM Go to last post
  38. How can you tell if you have a true Mercury Drag motor?

    Started by stoneman, 12-30-2019 05:47 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 1,589
    01-01-2020, 09:03 AM Go to last post

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