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My Newly Made Bulto Exhaust - 1.6Kg Lighter


smelling123
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Not original but couldve been made in the day - Sammy Miller mid box and TY250 back box.

https://www.flickr.com/photos/76022002@N08/15607628038/

https://www.flickr.com/photos/76022002@N08/15173317853/in/photostream/

https://www.flickr.com/photos/76022002@N08/15794317832/in/photostream/

A bit of work but Im happy with the result - cant comment on the sound yet...

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Hi,

Its not a Sherco pipe. The front pipe is made up of 316 stainless steel formed bends (available on fleabay) 90 degrees and a 45 degree one where it goes into the midbox. Midbox is the standard Sammy Miller one. alloy silenced is WES for TY250 with a small link pipe between the two.

The frontpipe was made to fit the bike not to a particular design - as you say steve, the length will help the bottom end. I am a bit concerned about the inner diameter of the link pipe and silencer. The smaller this is, the higher then backpressure which can improve performance but if its too small can cause the engine to overheat when revved.

Im going to try it and see how it works (the smallest diameter is the outlet of the end can - and as that was for a TY250, I dont think I have a problem).

I used to build expansion chambers for some classic racing bikes but of course they wont fit on a trials bike....

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