Bicylce-Engines expansion chamber

[shiveralex]

http://www.bicycle-engines.com/Fat-Cat-Chrome-Expansion-Chamber.html

Hey everyone, first post!:

i just bought bicycle engines chamber and i wanted to know if theres any tuning involved (and how) or if its just a slap on and go kinda thing.

I guess im considered a newbie.

I have a ebay special 49cc 2-stroke motor. im going to get the 80cc(66) soon but i dont have it yet.

 

[TheNecromancer13]

That expansion chamber looks really tiny, hardly even worthy of being called an expansion chamber lol. Anyways, I doubt you will see much improvement with one that small, but since you already have it, you might as well put it on and see what happens.

 

[mobike91]

I bought that pipe years ago when they called it the banana pipe. It didn't do much but sounded awesome. I ended up cutting the exhaust off at the end and building a full length pipe after it out the back of the bike. It looked awesome.

 

[mobike91]

Here's a wayyyy old video of it. You can see the pipe I built off of it lol

https://youtu.be/iHjaTAYwB9o

 

[ezrider]

Can these banana pipes make the bike GO FASTER ??

 

[mobike91]

I would say no. They don't offer any power band in that design at all. The header port is nothing more than stock, the tune if it had one would be at a pretty low rpm.

 

[TheNecromancer13]

Big, properly tuned ones can increase top speed, but most of the pipes on the market are tiny little things that don't do ****.

 

[Dan]

Howdy Alex, welcome!