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Free exhaust
https://ukbeg.com/forum/viewtopic.php?f=7&t=13456		 Page 1 of 2
Author:  TOPGUMM [ 24 Jan 2012 15:35 ]
Post subject:  Free exhaust
http://www.twinmotorcycles.nl/artikelen ... 18&aid=181 :sun: conditions apply :sun:
Author:  pash [ 24 Jan 2012 15:48 ]
Post subject:  Re: Free exhaust
Needs to live in a sunny state with a 2" header, so that suggests people in Cornwall...
Author:  Bonzo [ 24 Jan 2012 16:06 ]
Post subject:  Re: Free exhaust
pash wrote:
Needs to live in a sunny state with a 2" header, so that suggests people in Cornwall...


I'm in a sunny state :P ...but I have an XB :sad1:
Author:  chris(madrid) [ 24 Jan 2012 16:24 ]
Post subject:  Re: Free exhaust
pash wrote:
Needs to live in a sunny state with a 2" header, so that suggests people in Cornwall...
Madrid! 8-) - Sadly I still can't ride.
Author:  kevmean [ 24 Jan 2012 16:49 ]
Post subject:  Re: Free exhaust
I'm not convinced that the front hanger is as good as the late inverted Y type as fitted by Buell.
Author:  Maz [ 24 Jan 2012 17:06 ]
Post subject:  Re: Free exhaust
:headbang:
Author:  albert666 [ 24 Jan 2012 18:23 ]
Post subject:  Re: Free exhaust
it went to someone on badweb in florida i think
Author:  Mickrick [ 26 Jan 2012 13:51 ]
Post subject:  Re: Free exhaust
I live in the sun! But haven't got my bike here. :sad1:
Weather here's been unbelievable for Jan. 18 degrees and sunny! :ner:
I posted about this a couple of weeks back. I'm waiting for them to get it eu homoligated. I'll be the first in the queue when they do!
Should get to see my bike for the first time next week. :dance:
Author:  SimonD [ 26 Jan 2012 19:29 ]
Post subject:  Re: Free exhaust
Oh dear! That sprung mount kinda makes you question the rest of their products.

.....at least it appears they will be selling spare parts for the rear mount :). Perhaps it should come with a stud extractor too.
Author:  kevmean [ 26 Jan 2012 19:40 ]
Post subject:  Re: Free exhaust
It doesn't look anywhere near as good or as strong as the race kit can and i'm still not convinced with the mounting arrangement .........how long before it breaks the studs at the head ? or cracks the headers ....think about it ..the full exhaust and engine need to move as a unit with just enough damping in the mountings to absorb vibration to prevent cracking. With the front mounting literally hanging on springs the only thing preventing the exhaust from trying to swing back and forward is the header studs, the rear mount will not prevent this as the two plates can swing in that plane .
I may be proved wrong but think you need a more ridged mounting system like the race kit with Y front hanger preventing back and forth movement but with a Maz style stronger mount than the original shoes that were prone to break where they clamped around the header.
Author:  pash [ 26 Jan 2012 19:52 ]
Post subject:  Re: Free exhaust
I would be very surprised if it gets an E mark cos it is a straight through muffler, so 105dB plus...
Author:  Vecchio Lupo [ 27 Jan 2012 13:31 ]
Post subject:  Re: Free exhaust
I volunteered to assist them and even promised to take it to Daytona, Mid Ohio Vintage days, Buell Homecoming and the US Moto GP so people could see it. They were very nice in their rejection of my offer. It's just like being back in High School.
Author:  thorkill the tall [ 27 Jan 2012 14:37 ]
Post subject:  Re: Free exhaust
It reminds me of a Redline can.

Personally, I would have a proper bracket welded to the elbow and use the Buell 'Y' hanger.
Author:  Mickrick [ 27 Jan 2012 18:55 ]
Post subject:  Re: Free exhaust
I thought that about the hanger too. Putting all the weight on the headers.
But I'm only interested in the can. If you look at the video of them testing it on another bike, it sounds pretty quiet to me. I doubt it's anywhere near 105 db.
My last Caterham 7 was around 100db and it doesn't sound as noisey as that.

I see Wilyco make a homologated can, but they are Italian, and true to form don't answer e-mails.
Author:  pash [ 27 Jan 2012 19:27 ]
Post subject:  Re: Free exhaust
You may be right, but you are relying on info from a microphone and a PC speaker.

I am sure TM have some super technology that sucks up noise from a perforated straight through pipe.

My Vance and Hines on my X1 has a perforated 2" pipe wrapped in Acoustafil inside an aluminium can. The aluminium can will absorb some of the nose due to its compliance, however it is far louder than my Ti Force on my Firebolt, which has a cheeky double exit to split the sound into two, and measured 105dB at Castle Combe (too loud to play).
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