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Old 01-24-2014, 10:17 PM
Theon Theon is offline
Motorized Bicycle Elite Member
Join Date: Jan 2014
Location: FNQ Australia
Posts: 1,440
Default Re: DIY expansion chamber?

I gave my pipes a bit of a tidy up today, but something died in my Shipping container/ welding Shed.
And I have a few slag intrusions that should be fixed before painting, there's better light and less fumes outside though.
My 'Over the top' pipe needs a heat shield for the knee, it's burnt my mate also.
The header pipe for that one is salvaged from an old scooter and has a nice divergent angle. It was really a total experiment, with little math's and a bit of research, but again mostly about making something that fitted nicely.
I am however Quite happy with it's performance, although not really experienced enough to say that it is ideal.
For most engines/bikes/riders, a bit more header pipe?
That bike/motor (The Old Raleigh) has had a recent pull down/ upgrage also,
But does not have adequate brakes for 50MPH!
So Is possibly going to get parted out, and the remains hung on the wall?
Otherwise It needs Twin Discs!
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