TRX250R.ORG
Workshop => Carburetor, Intake, and Exhaust => Topic started by: The norm on August 14, 2019, 12:21:09 AM
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I made a silencer a few years ago for my Hybrid Engineering 310. I learned a few things in the process that I put to use on the silencer for the 391cc engine that Pete put together for me. The first thing I learned was the core should not be welded to the stinger or the end cap.
Second thing is the stinger and turn down bot should be welded to a "flange" that bolts to the end caps.
Third is that both ends should be removable and have "O"rings.
Fourth thing I learned is to machine a collar/sleeve for the stinger to head pipe connection instead of trying to expand the tube.
The first picture shows me machining 3/8" off the outer diameter of a piece of 4" ID aluminum conduit for the silencer body
(https://thumbs2.imagebam.com/e5/0e/8c/8d0fc01300771984.jpg)[/URL]
The next picture shows a finished end cap with the perforated core. I forgot to take a picture while machining it sorry
(https://thumbs2.imagebam.com/99/ec/21/1446271300781594.jpg) (http://www.imagebam.com/image/1446271300781594)
Then we have a picture of the silencer mocked up with both ends and the turn down....
(https://thumbs2.imagebam.com/b9/77/58/4cbeb81300783004.jpg) (http://www.imagebam.com/image/4cbeb81300783004)
Now this all took place months ago before I had the big motor done. I got the 391 and installed right before my last trip. I didn't have time to finish the silencer and went with the trx5 pipe and my first homemade silencer. Now fast forward to last Friday.... I decided that I must have the CPI pipe I acquired and the silencer on my R before the 250R Winchester bay meet!
So I buckled down and got it done...
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(https://thumbs2.imagebam.com/a9/23/bd/c75a631300776894.jpg)[/URL]
This shows the flange I wanted to have the turn down welded to.
And the flange that the stinger will weld to...
(https://thumbs2.imagebam.com/e3/c0/f3/cbf58a1300777904.jpg)[/URL]
Then mocking up the stinger...
(https://thumbs2.imagebam.com/8d/aa/20/9cb9a11300778924.jpg) (http://www.imagebam.com/image/9cb9a11300778924)
And finally the finished product!
(https://thumbs2.imagebam.com/ea/c7/33/c90e4f1300780124.jpg) (http://www.imagebam.com/image/c90e4f1300780124) (https://thumbs2.imagebam.com/2f/6c/cc/fd0e361300780404.jpg) (http://www.imagebam.com/image/fd0e361300780404)
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I'm very excited to see how this combination performs this Thursday at Winchester bay with some old friends and some new friends.
See you out there,
Loren
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Nice. Definitely like the o’ring seal. I hate rivets that rattle loose and leak.
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Sweet looking Loren!
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the "LSS" looks great! give us a full report after the meet
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Man that sure doesn't look homemade. That looks professional as hell. Well done sir.
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Man that sure doesn't look homemade. That looks professional as hell. Well done sir.
Loren does great work. Been riding on his pegs for a few years now & picking up one of his anti-vibe stems this weekend.
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Man that sure doesn't look homemade. That looks professional as hell. Well done sir.
Loren does great work. Been riding on his pegs for a few years now & picking up one of his anti-vibe stems this weekend.
Awww shucks