shortening standard cans

[Ant]

Hello all,

I'm gonna have a go at cutting down my standard cans to make them a little nicer to look at.

Question is has anyone done this before? If so what's inside? Any pics?

Cheers, ant

[lloydie]

It's been done so it's possible . Other than that I can't help

[Demonic69]

There's usually just wadding and the perforated tube. Sometimes an extra baffle too. Not seen inside the storm ones though.
You could look at replacing the end-cap with something larger or nicer too, places like PJEngineering sell them in specific sizes one might fit.

[Ant]

Cheers for the responces, good to know it's been done before. I'll cut one open as I've not got a lot to lose and post up some pics. Ant

[MacV2]

There's usually just wadding and the perforated tube. Sometimes an extra baffle too. Not seen inside the storm ones though.
You could look at replacing the end-cap with something larger or nicer too, places like PJEngineering sell them in specific sizes one might fit.

No wadding inside the std cans. The perf tube is split in two, first bit stops about half way down & the second bit takes it to the end, thats the bit you remove in a baffeloctomy...

[Demonic69]

No wadding? Are there baffles in the tube to keep it quiet then?

[MacV2]

No wadding? Are there baffles in the tube to keep it quiet then?

Yes perforated tubes.

Do a search for Bafflectomy.

[Demonic69]

No wadding? Are there baffles in the tube to keep it quiet then?

Yes perforated tubes.

Do a search for Bafflectomy.

Just looked at a few photos, 3 tubes looks familiar now, been a long time since I chopped a standard can apart.

Ant, are you going to weld the rear of the can back on or replace with a riveted end cap?

[Ant]

Ahha, thats what I was wondering, it's the offset beffle set up! In that case I'll probably try and pull all of that crap ouy and replace with a perf tube and a bit of wadding. Not sure about the ends.

[lloydie]

From looking into mine (de-baffled ) they're chambered .

[sirch345]

Ahha, thats what I was wondering, it's the offset beffle set up! In that case I'll probably try and pull all of that crap ouy and replace with a perf tube and a bit of wadding. Not sure about the ends.

LotusSevenMan had his standard cans innards removed and a perforated tube fitted, here's a couple of pic's looking down the rear end of the can:-





Chris.

[Varastorm]

I've done a few of these straight through mod's over the years, on different bikes though. Here's what I did.

Once you cut & gain access into the silencer, I found the easiest way to remove the various baffle plates is by cranking an arc welder up & using it similar to a lance but with out air. Just touch the material to be removed & it just melts away.

Keep it well away from the outer tube though. Once you've cleaned it out, you can buy perforated exhaust tube from eBay.

I use attic insulation to pack the silencer. I Pack the outer like a musket, constantly check that the perf tube is central all the time. It'll smell of house fire for a 100 or so miles, but it's worked well for the last 5000 miles & shows no sign of failing.

The hardest job is deciding how to fasten the end back on. That's the deal breaker, butt joint & tig weld or inner or outer banding with pop rivets

What ever you decide good luck & don't forget to update & some pictures please

BTW, if you don't pack it with anything, just hole saw through the various layers then push a perf tube down & weld it to the end. It's way too raspy

[Ant]

Cheers for the pics Chris and the info vara. Gonna give this a go, got an air saw that I reckon will rip through those baffles! Ant

[Demonic69]

Would one of these help with reassembly? Not sure on the diameter of the can.



http://www.pjengineering.co.uk/products.php?cat=6

[Ant]

Thanks for that demon, might be!