Diesel sterndrive & gear ratios

Discussion in 'Sterndrives' started by Eduardo Sanchez, Sep 3, 2006.

  1. Eduardo Sanchez
    Joined: Sep 2006
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Mexico

    Eduardo Sanchez New Member

    Im repowering a 30ft boat that currently has a Bravo ll diesel sterndrive 2:1,since Im dropping a low rpm high torque 250 @2600 5.9 cummins Ill like to know if it is a question of just buying a set of gears say 1.5:1 or better 1.36:1and installing them or it gets more complicated $$$ than that.The local sales Merc. tells me that the Bravo ll won t stand the 600lb/ft this engine produces.What I m after is to get this (loaded) 10000 boat running at about 20knts @ 2200 rpm.Any of you guys with Bravo ll diesel and knowledge of its limits and posibilities?
     
    Eduardo Sanchez, Sep 3, 2006
    #1
  2. J_R_R
    Joined: Sep 2006
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Sooke, BC, Canada

    J_R_R New Member

    J_R_R, Sep 4, 2006
    #2
Loading...
Similar Threads
  1. PickleRick

    Choosing alpha gear ratio for a diesel conversion

    PickleRick, Dec 15, 2017, in forum: Sterndrives
    Replies:
    2
    Views:
    5,905
    PickleRick
    Dec 16, 2017
  2. Nidza

    Welded metal belows - would that work for sterndrive?

    Nidza, Oct 18, 2023, in forum: Sterndrives
    Replies:
    4
    Views:
    3,833
    Nidza
    Oct 20, 2023
  3. RSD

    Sterndrives on a vessel that is permanently in saltwater - OK or bad idea?

    RSD, Jan 3, 2023, in forum: Sterndrives
    Replies:
    11
    Views:
    5,430
    DogCavalry
    Jan 6, 2023
  4. DogCavalry

    Help identifying old sterndrives

    DogCavalry, Aug 5, 2021, in forum: Sterndrives
    Replies:
    16
    Views:
    8,136
    fallguy
    Aug 8, 2021
  5. DCockey

    New Mercury forward face prop sterndrive

    DCockey, Aug 24, 2020, in forum: Sterndrives
    Replies:
    7
    Views:
    3,384
    gonzo
    Aug 29, 2020
  6. Squirrelmaster

    OMC 190hp sterndrive

    Squirrelmaster, Apr 28, 2020, in forum: Sterndrives
    Replies:
    7
    Views:
    5,587
    Squirrelmaster
    Apr 29, 2020
  7. kalo76

    Request for assistance for the installation of two Sterndrives?

    kalo76, Mar 26, 2020, in forum: Sterndrives
    Replies:
    14
    Views:
    3,874
    gonzo
    Apr 2, 2020
  8. Nidza

    Mechanical steering on sterndrive, anybody?

    Nidza, Nov 28, 2019, in forum: Sterndrives
    Replies:
    4
    Views:
    4,386
    Mr Efficiency
    Nov 29, 2019
  9. Nidza

    What type of rubber is used for sterndrive bellows and what is their shelf-life?

    Nidza, Jun 24, 2018, in forum: Sterndrives
    Replies:
    4
    Views:
    4,636
    7228sedan
    Jul 20, 2018
  10. Bert Amphibious

    Sterndrive for fast amphibious vehicle

    Bert Amphibious, Mar 1, 2018, in forum: Sterndrives
    Replies:
    29
    Views:
    15,513
    Nikola Webster
    Mar 4, 2021
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.