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PT: Exhaust Norvin - Exhaust System

Rixon

Well Known and Active Website User
VOC Member
I'm ready to mock up an exhaust system for the Norvin.

Most examples I've seen (including Eglis) seem to use two into one pipes and a gold star silencer. Modern Eglis also seem to use a 2" exhaust pipe. I've no particular preference on a silencer but it would be nice to use something different. Obviously at this stage the pipes and silencer can be any size or type.

Is a goldie silencer less restrictive than the standard Vincent item? I'm assuming so as the Vincent silencer doesn't seem to be used very often. Are there any other recommendations ? Bike is for road use only so nothing too noisy.
 

timetraveller

Well Known and Active Website User
VOC Member
This reminds me of a time about 55 years ago when local member, Paul Champion, made his own 'silencer'.. From memory it was a bit of 2 inch pipe welded into a silencer body. He came to see me one evening, me living out in the country several hundred yards from a main road. He wanted my opinion as to whether it was too noisy. It was a quiet evening with little traffic and no wind. In all honesty it did not sound too bad. When he left I could hear him ride up to the main road, go along the main road for a couple of miles, go through the local market town of Hailsham, pull out on to the dual carriage way the other side of Hailsham and accelerate up to his house about half a mile up the road. Due to the modern wonders of Google Earth I have just measured the straight line distance from where I was to where he lived. 4.26 miles. Be warned:eek:
 

bsaowner

Well Known and Active Website User
VOC Member
This reminds me of a time about 55 years ago when local member, Paul Champion, made his own 'silencer'.. From memory it was a bit of 2 inch pipe welded into a silencer body. He came to see me one evening, me living out in the country several hundred yards from a main road. He wanted my opinion as to whether it was too noisy. It was a quiet evening with little traffic and no wind. In all honesty it did not sound too bad. When he left I could hear him ride up to the main road, go along the main road for a couple of miles, go through the local market town of Hailsham, pull out on to the dual carriage way the other side of Hailsham and accelerate up to his house about half a mile up the road. Due to the modern wonders of Google Earth I have just measured the straight line distance from where I was to where he lived. 4.26 miles. Be warned:eek:
ok guys, thanks for all your input but we have strayed from the actual question. The noise level is not an issue for me so no need to discuss. All I'm concerned about is starting and general running. Maybe I should ask Sam as I've seen his bike at Barbers a couple of times.
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