thats an interesting looking bike got any more pics?

-SPiNNeR-

This confirms my reasoning, and fit quite close to my own calculations! I too would enjoy more pics of that beast. What is it, a hillclimber?

Probably not a hillclimber...from the looks of the bit of the seat you can see in the picture it looks like a bobber/chopper.  I'd definitely be interested in reading about what all was done :thumbsup:

Ugluk - please keep updating this thread   I don't know enough to contribute, but I'd like to learn more about exhaust design (without reading a book yet, haha).

I can't contribute a lot, but I think it's a very interesting project!!

May I take a ride on your thread? My stock exhaust has something loose inside, I'd like to open and restore it. I'd like to cut new internal walls and flutes, exactly to the stock dimensions. But my problems start at opening the muffler. Do you know where should I cut it so I can access the interior? A random cut will probably face me with a welded wall and that way the two parts won't separate.

tks and sorry for using your thread, but it's the best exhaust's one over here!

Good to hear there's some interest. I'll keep posting as things develop. Fabrication is some time coming though. Probably not until the end of the summer.

Edit: Feel free to stray from the path, but I know nothing of the stock muffler guts. Sorry.

Brother Wombaticus, I has question:
Could the 2-1 crossover act as a self-moderated stepped header, along with the scavenging effect?  With the flat spot being the range where one starts canceling the other (or at least part of the cause)?  Possibly harmonics being another?  

I've always wondered about elliptical tubing in the later stages...

Edit:
What about a slip-stream effect from the crossover into the collector at a certain RPM range acting as an arrestor/blockage?  Or low-pressure zoning post crossover - lengthening further down as RPMs grow, until it reaches the collector, creating a "water hammer" effect when they meet, then canceling out with more throttle?  Not even sure if that's entirely possible.  
Just something I always wanted to know. 

Quote from: Deros514 on June 17, 2010, 10:19:34 AM
thats an interesting looking bike got any more pics?

I just started another Topic with pictures of the rest of my bike.
http://gstwins.com/gsboard/index.php?topic=52900.0

-SPiNNeR-