Cannon design

[maldotcom2]

I want to make a cannon-type exhaust for my minibike. Can anyone give me a basic rundown on the internals?

[Not_An_Abba_Fan]

It is just a perforated tube running through a larger pipe and has glass packing between the two.

Looks like this.

[Troy711]

*awaits the thread pirates*

[Grennan]

Hope I didnt leave you waiting to long Troy.

[Not_An_Abba_Fan]

I was going to go down the smart arse track but since it's on a mini bike he's allowed to put a cannon on it.

[Troy711]

I must have missed the mini bike part :d'oh:

[danja]

@ Grennan

[holden-4-life]

HAHAHAHAAHAHAHAHAHAHAHA +1 grennan

[maldotcom2]

Haha.

It is just a perforated tube running through a larger pipe and has glass packing between the two.

Looks like this.

So is the inner tube supposed to be bigger than the input from the exhaust? Reckon i could use fibreglass insulation?

[naf33n]

Haha.



So is the inner tube supposed to be bigger than the input from the exhaust? Reckon i could use fibreglass insulation?

would only make it a little bit bigger, so it can slide over a small section of the exhaust, just to make it easier to mount

[ScoHar]

if its on a mini bike, why even use insulation in it? just make it without, I've seen lots of cannon mufflers that are basically just a pipe with fancy tapering at both ends.

[Not_An_Abba_Fan]

Haha.



So is the inner tube supposed to be bigger than the input from the exhaust? Reckon i could use fibreglass insulation?

The bigger the inner tube, the louder it will be. No you can't use fibreglass insulation, it's not dense enough. There is a special packing that is used in mufflers.

[skruba]

milo can ftw?

[Verynice]

i used a coke can spray painted silver and top part cut out on my old car heh hehhhhh

[JD]

Was thinking of this cos im getting a mess around bike, i reckon it'd make ears bleed though.

[skruba]

i had a crf50 changed motor ova to a cheap 300$ thumpa motor ran the stok pipe with a 2stroke fmf tip ppl culd hear me cumn for miles i miss that lil bike