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exsaust collectors

Posted: Sun Mar 18, 2012 8:19 am
by blinkey501
Just has a matter of interest is there any reason the collector pipes are a certain length. :smt017
Is it to balance the amount of gas flowing from each cylinder?
I am wondering if the back cylinder down pipe was re routed not to go through the swingarm but curled up and under the seat then that would leave room for the front pipe to come up through the swingarm and make it so an under seat exsaust could be made...
The only other issues i think would be to sort out the number plate mounting bracket, and to find a pair of silencers small enough to fit.
Any ideas on the above :smt001

Posted: Sun Mar 18, 2012 8:41 am
by irich
Short answer is yes.

Exhaust header length is set to suit many factors, valve size, duration etc.

Posted: Sun Mar 18, 2012 7:00 pm
by Aladinsaneuk
And as I said on the phone - back pressure etc...

Posted: Sun Mar 18, 2012 7:05 pm
by blinkey501
This was posted before our phone conversation pete :smt002

Posted: Sun Mar 18, 2012 8:25 pm
by Aladinsaneuk
I was fettling.....

Posted: Sun Mar 18, 2012 11:28 pm
by D-Rider
Aladinsaneuk wrote:And as I said on the phone - back pressure etc...
Ah yes - but you solved that by raising your clipons above the top yoke :smt002

Re: exsaust collectors

Posted: Mon Mar 19, 2012 8:49 pm
by Kwackerz
blinkey501 wrote:Just has a matter of interest is there any reason the collector pipes are a certain length. :smt017
Is it to balance the amount of gas flowing from each cylinder?
I am wondering if the back cylinder down pipe was re routed not to go through the swingarm but curled up and under the seat then that would leave room for the front pipe to come up through the swingarm and make it so an under seat exsaust could be made...
The only other issues i think would be to sort out the number plate mounting bracket, and to find a pair of silencers small enough to fit.
Any ideas on the above :smt001



The closest you're going to get is the hilevels that tuck under the side of the seat unit.

Jorge spent an age trying to make something work.

Re: exsaust collectors

Posted: Wed Mar 21, 2012 7:34 pm
by blinkey501
Kwackerz wrote:
blinkey501 wrote:Just has a matter of interest is there any reason the collector pipes are a certain length. :smt017
Is it to balance the amount of gas flowing from each cylinder?
I am wondering if the back cylinder down pipe was re routed not to go through the swingarm but curled up and under the seat then that would leave room for the front pipe to come up through the swingarm and make it so an under seat exsaust could be made...
The only other issues i think would be to sort out the number plate mounting bracket, and to find a pair of silencers small enough to fit.
Any ideas on the above :smt001



The closest you're going to get is the hilevels that tuck under the side of the seat unit.

Jorge spent an age trying to make something work.
I am looking at this from a fabricator point of view, with the thought of anything is possible. I have a plan that will be next winters project.
I know it will have to be a 2 into 1 into 2 set up. When i get that far the silencers will be the issue with clearance but yet again i have a plan with that also sooooo