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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Sat Feb 04, 2012 10:27 am Post subject: Weird Cans |
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I sold the Akrapovic Evo system that has been on my bike since March, so today I refitted my standard RRW system. I made a weird silencer back in January to test some zorst theories and I fitted it today.
It's about 600mm long, 63 mm diameter with a 35mm perforated tube baffle. Currently packed with stainless wire wool. I know it looks odd , but bare with me, it will be modded over the coming days/weeks. Opinions greatly appreciated and orders taken , should you see summat you like.
So here is weird can 1;
Click on the piccy to hear it?
_________________ Why pay someone else, do it yerself |
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NAPA121 Mini Moto racer
Joined: 20 Aug 2005 Posts: 971 Location: Sidcup, Kent
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Posted: Sat Feb 04, 2012 12:13 pm Post subject: |
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I wish I had a good understanding of how these things work but unfortunately I don't so can't really comment.
It does look rather thin though which is different...Different is sometimes good so hopefully it gives you a few more horses.
Good Spannering though Alan....I would love to be able to do stuff like that myself. _________________ Teamwork makes the Dreamwork! |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Sat Feb 04, 2012 4:53 pm Post subject: |
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Thanks mate.
Just pulled the baffle out and I had forgotten to pack it. I shortened it, ready for the slashcut, wrapped and wired stainless wire wool around it and then refitted it. Some pix and a vid. Whadya think?
shortened
wrapped and wired
refitted and tested
One short video
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JimBo Pedantic Cnut
Joined: 18 Nov 2004 Posts: 5394
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Posted: Sat Feb 04, 2012 5:29 pm Post subject: |
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Good work Alan, but you really should chock the wheels when running your bike unattended on that slopey drive!
Frightened the life out of me and it's not even my bike. _________________ So many roads, so little time. |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Sat Feb 04, 2012 6:24 pm Post subject: |
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Cheers mate, will do next time! _________________ Why pay someone else, do it yerself |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Sat Feb 04, 2012 7:04 pm Post subject: |
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dunno what's happened with the vid, worked ok before?
Here's a slashcut with the full length baffle.
And hopefully a video.
_________________ Why pay someone else, do it yerself |
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NAPA121 Mini Moto racer
Joined: 20 Aug 2005 Posts: 971 Location: Sidcup, Kent
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Posted: Sat Feb 04, 2012 9:43 pm Post subject: |
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Mate..Brilliant work fella
Sounds and looks good.
It does amaze me how some people can do stuff like that and I struggle to change the chain and Sprocket
Please don't burn me people but what does the wrapping the silencer in wire wool do? _________________ Teamwork makes the Dreamwork! |
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wivvy's dad Cabbage club member #3
Joined: 13 Apr 2005 Posts: 14655
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Posted: Sat Feb 04, 2012 11:41 pm Post subject: |
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NAPA121 wrote: | Please don't burn me people but what does the wrapping the silencer in wire wool do? |
Keeps it nice and clean, saves using nasty cleaners like Cif or Ajax |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Sun Feb 05, 2012 1:20 am Post subject: |
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Supposed to absorb some of the sound energy mate, but not much! _________________ Why pay someone else, do it yerself |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Sun Feb 05, 2012 7:27 pm Post subject: |
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The latest and last version of the slashcut. If anybody can sort the video problem , that would be splendid!
Next job is better absorbtion material and maybe modding the linkpipe! _________________ Why pay someone else, do it yerself |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Sat Feb 11, 2012 7:42 pm Post subject: |
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Well I was sent some proper silencing material by a very kind gentleman on another forum. So I packed the 250mm long by 35mm bore baffle , polished up the "silencer" and refitted it today. Whadya reckon;
Double click on the piccy to listen to video.
It ain't gonna get any quieter than this unless I fit a pre silencer under the engine. The standard exhaust system has a four into two into one which is about 48mm diameter welded to the linkpipe which is 61mm diameter. Not sure what goes on inside the link pipe, but there aint much silencing! Here's a coupla pix of the collector and link pipe;
So I will either redesign the link pipe with a silencer in it or fit a 4" diameter pre silencer and a serpentine link pipe, as fitted to late model Blades with aftermarket Yoshimura or Akrapovic silencers. _________________ Why pay someone else, do it yerself |
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Flintstone Del Boy Deer Hunter
Joined: 25 Nov 2004 Posts: 3988 Location: .........in another world !
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Posted: Sat Feb 11, 2012 10:06 pm Post subject: |
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Do you know how this can affects the mixture/power ? _________________ It's all down to quality of life ! |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Sat Feb 11, 2012 10:41 pm Post subject: |
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Not yet mate, hasn't been on the road yet. I know the outlet dimaeter is bigger than a standard can though!!! _________________ Why pay someone else, do it yerself |
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BarryH Cabbage club member #1
Joined: 25 Jun 2004 Posts: 7579
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Posted: Sat Feb 11, 2012 10:49 pm Post subject: |
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If anything it'll probably make it run lean. Most freer flowing systems will. The worst case senario is that it will start burning valves...... |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Sat Feb 11, 2012 11:02 pm Post subject: |
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I think I'll be sorting the carbs before then mate! _________________ Why pay someone else, do it yerself |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Thu Feb 16, 2012 5:34 pm Post subject: |
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Managed to get out for a bimble around the Marsh today. I picked a 1/2 mile straight between bends, put my phone camera at the side of the road, switched on and got on the bike. Dunno how to edit it , so the the bit between 20 secs and 2.05 mins is OK??? Whadya reckon??? Double click on the piccy!
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biggus illitterātus
Joined: 21 Aug 2004 Posts: 31748 Location: Hotel California
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Posted: Thu Feb 16, 2012 5:50 pm Post subject: |
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megawatt wrote: | Dunno how to edit it |
Use something like windows movie maker... although if you are on XP, that version AFAIK does not support MP4, the Win7 version does _________________
www.bigguspicus.co.uk
There are 10 types of people in the world: those who understand Binary and those who don't
There are II types of people in the world: those who understand Roman numerals and those who don't.
98% of all Harleys ever sold are still on the road. The other 2% made it home |
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biggus illitterātus
Joined: 21 Aug 2004 Posts: 31748 Location: Hotel California
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Posted: Thu Feb 16, 2012 5:52 pm Post subject: |
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P.S. Sounds nice, but then I'm biased, have you measured the sound level? Is it in territory from the fuzz?
How do you categorise it for insurance purposes btw? My insurance just ask that it's not stamped not for road use etc. _________________
www.bigguspicus.co.uk
There are 10 types of people in the world: those who understand Binary and those who don't
There are II types of people in the world: those who understand Roman numerals and those who don't.
98% of all Harleys ever sold are still on the road. The other 2% made it home |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Thu Feb 16, 2012 6:46 pm Post subject: |
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It's way too loud mate, makes yer ears bleed after a 1/2 hour ride. Gonna have to modify the link pipe as well. Dunno about legality, need to get the dBs tested! _________________ Why pay someone else, do it yerself |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Thu Apr 19, 2012 10:37 am Post subject: |
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Just done summat radical with my silencer. Went from this;
To this;
Really weird eh ??? _________________ Why pay someone else, do it yerself |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Tue May 22, 2012 12:36 pm Post subject: |
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Got my MOT, so it's back to weird cans.
Knocked this together today. I had a 60mm tube welded to a washer, 38mm i/d, 73mm o/d. Made the slashcut outta 3" polished stainless tube, 13" long. added a 10" length of 38mm perforated tube and another washer to the end. Just wedged it all together to see what it looked and sounded like. Whadya reckon?
Here's a video . Double click to view and listen.
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biggus illitterātus
Joined: 21 Aug 2004 Posts: 31748 Location: Hotel California
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Posted: Wed May 23, 2012 10:50 am Post subject: |
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I bet your neighbours love you megawatt _________________
www.bigguspicus.co.uk
There are 10 types of people in the world: those who understand Binary and those who don't
There are II types of people in the world: those who understand Roman numerals and those who don't.
98% of all Harleys ever sold are still on the road. The other 2% made it home |
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megawatt Speedway Rider
Joined: 03 Apr 2009 Posts: 485 Location: Northiam, near Rye
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Posted: Wed May 23, 2012 12:14 pm Post subject: |
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Most of em are old n deaf. Next door wakes us up every morning with her yapping dogs, so I don't feel too guilty!
More pix of the 3" diameter by 13" long can with a 35mm perforated tube baffle and two rings of Accoustafil packing in. Video to follow.
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Wivvy GrandCnut
Joined: 27 Jul 2004 Posts: 10928
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Posted: Wed May 23, 2012 3:00 pm Post subject: |
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prefer it with the slash facing down! |
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Matty Cant keep it up!
Joined: 25 Mar 2004 Posts: 3547 Location: Peacehaven, somewhere between the mad house and my bike!
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Posted: Thu May 24, 2012 1:49 am Post subject: |
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Love the exhaust, I had the Urban Tiger 1995 model for a while. Cracking bikes |
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