1000 3c 180?: down pipes & collector with 38mm bore

there is not really a proper UK (not English) equivalent, we did in the past call them "three branch manifolds"
CLEM
 
G'day Clem

Yes, I have the A. Graham Bell book on 4-stroke performance tuning. While he doesn't make much reference to 3 cylinder engines, he does provide a bunch of info on exhausts for V6 engines (basically two 120? triples joined together). There's also a heap of stuff on 4 cylinder engines that can be interpolated for use on a 180? triple (a traditional flat plane crank 4 with one cylinder missing).

I used Bell's book to figure out a 3-1 exhaust system for the 120? track bike I built a few years ago. As it happened, Paul (bevelman) had a 3-1 system on his 180? race bike "Rosie" that wasn't working for him. His engine was running out of puff at high revs, just where it should have been hitting max power. After measuring it and consulting my notes, I figured out that the headers were too short for a 180? but were pretty close to what I needed for a 120? engine (exhaust pulses are closer together), so I bought it from him. It actually worked quite well on my bike.

PS: As a footnote to the above, Paul did some development work with an exhaust specialist and ended up with an exhaust system that let Rosie reach her top end potential. It had longer headers than the system I bought from him. So it seems Bell's theories and formulae weren't too far off the money.

Cheers,
Cam
 
I never eat ham/beefburgers unless I know who made them and what is in them, or some other reasoned confidence, offal gives me gout in about three hours, even though I enjoy it. I believe the Aussies use the term "surprise bags" when talking about sausages,
I once bought some. at a known good on the farm butchers and my late wife Andrea had to spit out a pigs eye lash! when told of this the butcher said they must have been made when he was out of the shop, he folded a year later
sausage/burger buyers beware!
CLEM
 
Piranha Brother 2 said:
Always called 'em headers in Oz - or 'header pipe' per essere preciso. No US connection that I'm aware of.
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How much Australian music on the radio?
How many Australian films in the cinemas? ( note FILM, ,not movie).

That's how you end up with headers.

Paul
 
About gas velocity. When I made some studies about two stroke engines the value for gas velocity or better the velocity of the pressure waves were given with about 550 m/ sec.
 
I am going to stay with (not stick with) front pipes, where bikes are concerned,but I suppose in reality they are primary pipes.
CLEM
 
CLEMTOG said:
I am going to stay with (not stick with) front pipes, where bikes are concerned,but I suppose in reality they are primary pipes.
CLEM
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Primary pipes are Scottish, or Breton Clem.

Paul
 
OK then, you tell me what term I must use! in order to be politically correct 100% English IC 1 (male).
Brettoni pipes would be good? no ?
CLEM
 
I've always thought the English vernacular was 'downpipe(s)' as in they exit the head and, er, go down to the collector... 
 
Use the term 'primary pipes' in Australia and noone will have a clue what you're talking about. No idea whether 'header pipe' is a US import Paul. At least we don't yet use the term 'aluminum'!! But social media is encroaching rapidly on use of US-centric language in many parts of the world.

As for US-Australian English, I was surprised to read recently that the loss of 'u' in many words like 'labour, harbour, candour' etc has its roots in UK English.
 
Piranha Brother 2 said:
As for US-Australian English, I was surprised to read recently that the loss of 'u' in many words like 'labour, harbour, candour' etc has its roots in UK English.
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That sounds like fake news if ever i heard it: that said I always have to scratch my head when I see signs for Victor Harbor.... ??? ???
 
AndyW said:
That sounds like fake news if ever i heard it: that said I always have to scratch my head when I see signs for Victor Harbor.... ??? ???
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:LOL: :LOL:

Read it in the Macquarie Dictionary. They're renowned for their fake news  :-*. And then there's Labor (as in the party - where's the 'u'?!)
 
Piranha Brother 2 said:
As for US-Australian English, I was surprised to read recently that the loss of 'u' in many words like 'labour, harbour, candour' etc has its roots in UK English.
Click to expand...

It's even more complicated than I thought ...... looked up on that and found this useless bit of information.

"The word color has its roots (unsurprisingly) in the Latin word color. It entered Middle English through the Anglo-Norman colur, which was a version of the Old French colour."

So "color" comes from Latin
Then "colour" comes from French
Then there is the Anglo-Norman "colur"
Then it was proper English to use "colour"
Then Noah Webster decided American English should be different so we get "color"

I think I will switch to Anglo-Norman.

Jim (colur me different) Henderson
 
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