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Thread: Racing exhaust for laker 49 OMC

  1. #131
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    Default SST 60 cowl fitment

    Quote Originally Posted by sharpeye Mike View Post
    I gather it would of fit perfectly under an SST60 pan and cowl.
    Possibly, but unknown. It was more like a Mercury T2-X protruding thru the narrow cowl.

    Tim

  2. #132
    Team Member Mumat's Avatar
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    http://s1062.photobucket.com/user/sl...mp4.html?o=173

    This is a short vid of the first fire it was a rigg to get it running I since have cleaned it up and got it looking a lot cleaner

  3. #133
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    Quote Originally Posted by Mumat View Post
    http://s1062.photobucket.com/user/sl...mp4.html?o=173

    This is a short vid of the first fire it was a rigg to get it running I since have cleaned it up and got it looking a lot cleaner
    Sounds great but can you do a video on the exhaust side.

    Stephen

  4. #134
    Team Member Mumat's Avatar
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    I'll look I may have some pictures and or Video hiding a round the motor is in storage till you get my garage construction done.

  5. #135
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  6. #136
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    What size that chamber needs to be? Is there some formula to calculate it?

  7. #137
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    Default Pipe size

    Quote Originally Posted by Jippe View Post
    What size that chamber needs to be? Is there some formula to calculate it?
    Experimentation suggests that 150% of the exhaust port area with a 25% choke immediately downstream of the #3 cylinder followed by a 3 degree divergence cone is a good starting point.
    Best of luck!

  8. #138
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    Tim
    Started on an exhaust system for the stock 49ci 3 cylinder OMC Stinger based upon the Mod 50 exhaust. Found the information you posted and others very helpful. Parts have been casted and are awaiting machining. It will be some time until it will be tested. Will try to post some pictures when completed. There are quite a few guys here in AU who are interested.

  9. #139
    Team Member Mumat's Avatar
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    I have been insanely busy but my 75 is togeather I had to Modify the pan and hood for my exhaust but it turned out looking good. I'll get more picks when the snow clears.

  10. #140
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    Need to get it on the water and see what she goes like,
    looks very nice all painted up.

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