Thanks Thanks:  0
Page 1 of 15 123456789101112131415 LastLast
Results 1 to 10 of 141

Thread: Racing exhaust for laker 49 OMC

  1. #1
    Team Member
    Join Date
    Nov 2008
    Location
    Horseshoe Bend, ID
    Posts
    657
    Post Thanks / Like

    Default Racing exhaust for laker 49 OMC

    For lakers and river runners: Finally, a bolt-on high performance exhaust system for your 49.9 OMC loop triple. This new design replaces the long runner “sandwich plate” type, and features short, Mod-50 style interconnects to enable high RPM use. Designed for the factory powerhead adapter without modifications. It’s water cooled and will fit underneath the existing cowl. Images are the casting pattern mockup. Finished system will have provision for the starter solenoid

    The kit will include all parts, fasteners, and gaskets. Taking orders now for spring 2012 kit. Please PM if interested. Thanks,

    Tim
    Attached Images Attached Images   
    Last edited by Ron Hill; 08-09-2022 at 08:20 PM.
    Likes hydrospeed77 liked this post

  2. #2
    FFX-61
    Join Date
    Aug 2005
    Location
    Stellwagan Ledges
    Posts
    1,389
    Post Thanks / Like

    Default

    , i needs one.

    Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052

  3. #3
    Team Member 88workcar's Avatar
    Join Date
    Jun 2009
    Location
    Pierre Part, La.
    Posts
    270
    Post Thanks / Like

    Default

    Are the production ones going to made out of treated lumber? I think that in the wet conditions that would be a better choice for the duration.
    Helping folks out around the globe.

  4. #4
    Team Member
    Join Date
    Aug 2007
    Location
    Asheville, NC
    Posts
    22
    Post Thanks / Like

    Default

    Quote Originally Posted by 88workcar View Post
    Are the production ones going to made out of treated lumber? I think that in the wet conditions that would be a better choice for the duration.
    HA! I doubt it, that chip board is there for a reason. When it gets wet, it expands, that's why they call it an EXPANSION chamber!

  5. #5
    modifiedoutboard OUTBOARDER's Avatar
    Join Date
    Sep 2008
    Posts
    209
    Post Thanks / Like

    Default pipe adaption to NYDHAL LOG

    Quote Originally Posted by Tim Kurcz View Post
    For lakers and river runners: Finally, a bolt-on high performance exhaust system for your 49.9 OMC loop triple. This new design replaces the long runner “sandwich plate” type, and features short, Mod-50 style interconnects to enable high RPM use. Designed for the factory powerhead adapter without modifications. It’s water cooled and will fit underneath the existing cowl. Images are the casting pattern mockup. Finished system will have provision for the starter solenoid

    The kit will include all parts, fasteners, and gaskets. Taking orders now for spring 2012 kit. Please PM if interested. Thanks,

    Tim
    am interested in adapting bolt on chamber for hydro racing and
    adapting under base plate for out the side of 15" mid " smackdown racing "
    Attached Images Attached Images  
    ANTHONY McCULLOCH
    modifiedoutboard@hotmail.com

    Some things never change!

    They Want it cheap..............

  6. #6
    Team Member
    Join Date
    Jun 2005
    Location
    Eastern PA
    Posts
    661
    Post Thanks / Like

    Default

    What will the insides look like?

    Jeff

  7. #7
    Team Member
    Join Date
    Jun 2008
    Location
    Arlington, Texas
    Posts
    20
    Post Thanks / Like

    Default

    Agree with Jeff...also, What performance gains have you calculated or better yet, actuals?

    Thanks, George

  8. #8
    FFX-61
    Join Date
    Aug 2005
    Location
    Stellwagan Ledges
    Posts
    1,389
    Post Thanks / Like

    Default


    Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052

  9. #9
    Team Member
    Join Date
    Jun 2007
    Posts
    13
    Post Thanks / Like

    Default

    Will this fit under the cowl and inside the lower pan or would they need to be modified?
    Looks similar to what Nydahl created decades ago

  10. #10
    Team Member
    Join Date
    Nov 2008
    Location
    Horseshoe Bend, ID
    Posts
    657
    Post Thanks / Like

    Default Nydahl system?

    Thanks for writing. This is the first time I've heard of the Nydahl system you mention - have never seen one to be sure! If anybody has one of these, images, or performance experience please contact me.

    The only reason I patterned this was at the request of river racer friends frustrated with the RPM limitations of the factory system. The plan is to make it a bolt-on mod that will fit under the cowl and offer Mod-50 style short interconnects. I've got facrory Mod-50 systems to emulate.

    Anyway, if five racers commit on/before Feb 15, the project will be developed in time for spring 2012 deliveries. Estimated kit price is $450 plus shipping.

    Thanks to all of you that have PM'd. Please be patient, I'll be in touch with you soon.

    Tim

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •