Different exhaust temps

utopia · 11-07-2020, 03:55 PM

Yep, points taken .. I concede.
It does look like the rear header favours the right hand silencer to a fairly noticeable extent, and even the front one does to a small extent too.
A picture speaks a thousand words, eh ?
I should have gone into the shed and studied my old headers instead of working from memory.
I must admit that I was already considering that the initial bends towards the right hand side might mean that the gases would tend to hug that side of the pipes, even though they straightened out further along (memory says this might be called the Coanda effect).

Anyway, yep ... it does look like the flow favours the right hand silencer.
Which tallies with Alan's experience of that can feeling hotter than the left hand one.

11-07-2020, 03:55 PM	#10
utopia No turn left unstoned Join Date: Jun 2010 Location: leicester Bike: M750 Posts: 4,546	Yep, points taken .. I concede. It does look like the rear header favours the right hand silencer to a fairly noticeable extent, and even the front one does to a small extent too. A picture speaks a thousand words, eh ? I should have gone into the shed and studied my old headers instead of working from memory. I must admit that I was already considering that the initial bends towards the right hand side might mean that the gases would tend to hug that side of the pipes, even though they straightened out further along (memory says this might be called the Coanda effect). Anyway, yep ... it does look like the flow favours the right hand silencer. Which tallies with Alan's experience of that can feeling hotter than the left hand one.