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Jemco Swarbrick chambers?

Posted: Sun Feb 15, 2015 1:21 pm
by weber
Whats the story behind the asymmetrical shape of these chambers? I first thought they were a mistake, but all the pictures I've seen are the same.

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Re: Jemco Swarbrick chambers?

Posted: Sun Feb 15, 2015 3:02 pm
by tz375
I have no idea, but thinking about it, Dave Sawrbrick sells his chambers partially assembled and my guess is that an owner put the together like that for whatever reason and those pipes were then replicated by Jemco

Re: Jemco Swarbrick chambers?

Posted: Sun Feb 15, 2015 5:26 pm
by bill in okc
For what its worth - my 1992 ZX-11 came from the factory that way and from what I've seen they all did.

Re: Jemco Swarbrick chambers?

Posted: Sun Feb 15, 2015 8:14 pm
by desmocat
My chambers on my race bike are the same.

I'm not sure why, might have to do with having one side higher so axle can be removed? Doesn't really make sense because it on the wrong side.

Re: Jemco Swarbrick chambers?

Posted: Mon Feb 16, 2015 8:30 pm
by weber
It's really getting to my ocd side, I think I'm going to let it slide as I need to modify the pre-chamber section to fit inside the fairing as it is.

I would sleep better at night if they were symmetric, but at that point I might as well make them from scratch.

Re: Jemco Swarbrick chambers?

Posted: Mon Feb 16, 2015 8:57 pm
by tz375
That would drive me nuts too. I wonder if anyone hs a good picture of Swarbricks assembled by Dave Swarbrick to see if they are different.

Re: Jemco Swarbrick chambers?

Posted: Tue Feb 17, 2015 4:13 pm
by titan performance
Strange.....looks dreadful. I can think of no logical reason for that.

Re: Jemco Swarbrick chambers?

Posted: Wed Feb 18, 2015 12:54 am
by bill in okc
I wonder if they could be for flat track racing? More ground clearance on the left side - but then why not raise the right too... or bring both pipes out on the right - just a wag

Re: Jemco Swarbrick chambers?

Posted: Fri Feb 20, 2015 12:49 am
by bs_racer
Just my 2 cents worth but I'm looking to get chambers for my T500 and if they came like that they'd go right back. I may have to reconsider Jemco.

Re: Jemco Swarbrick chambers?

Posted: Fri Feb 20, 2015 7:22 am
by old racer
Have you got a full pic of these pipes from the side.

Re: Jemco Swarbrick chambers?

Posted: Fri Feb 20, 2015 10:05 am
by jabcb
There a topic with pics on CafeRacer.net
Shows Swarbick pipes that have symmetrical high mufflers. Also shows same bike with different pipes + mufflers below the axle.
http://www.caferacer.net/forum/project- ... ild-6.html

Re: Jemco Swarbrick chambers?

Posted: Fri Feb 20, 2015 2:23 pm
by weber
Ya, I was pretty bummed when I got them up on the bike. They look beautiful but the fitment is horrible, the down pipes coming out of the head are cockeyed and bang into each other. They honestly don't even come close to fitting well. I'm at the point of paying someone to totally rework the front and rear section. Hey look at my $1000 exhaust!!




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Re: Jemco Swarbrick chambers?

Posted: Fri Feb 20, 2015 6:09 pm
by old racer
It's very difficult to tell from the pics,It looks like there is a angle cut on the last cone on the left side,
But looks like the same cone on the right side has straight cut.
Would i be right in saying this,Or is there a angle cut and the cone turned outward,
In which case the end of the pipe would sit lower and away from the frame, creating a bigger gap between The muffler and swingarm.

Re: Jemco Swarbrick chambers?

Posted: Fri Feb 20, 2015 7:05 pm
by tz375
Just to be clear here, we are talking about Jemco replicas of a set of Swarbrick pipes - not original Swarbrick pipes from Dave Swarbrick in the UK http://www.swarbrick-racing.co.uk/early.php" onclick="window.open(this.href);return false; and not the normal JEMCo pipes, right?

Re: Jemco Swarbrick chambers?

Posted: Sat Feb 21, 2015 3:57 pm
by weber
old racer wrote:It's very difficult to tell from the pics,It looks like there is a angle cut on the last cone on the left side,
But looks like the same cone on the right side has straight cut.
Would i be right in saying this,Or is there a angle cut and the cone turned outward,
In which case the end of the pipe would sit lower and away from the frame, creating a bigger gap between The muffler and swingarm.
Yes you are correct. The last cones are cut slightly different, and the pipe to the silencers are bent different. Not a hard fix, but I wanted to keep the nice looking raw finish.