derbi laguna sport owners, read this

I just modified my stock pipe.

as you may know the stock pipe looks alot like an expansion chamber exhaust. unfortunately from the factory it is VERY restricted. The header tube goes all the way into the middle of the pipe/chamber and there is a huge baffle/restrictor right in the center of the chamber.

I've attached a crude drawing of the pipe. I didnt take any pictures sorry.

Basicly I removed the length of header pipe that extends into the chamber along with the baffle in the center. I had to cut down the center line of the chamber and reweld it back up. I also had to reweld the header joint. not a big deal really. After doing this the pipe becomes an actual expansion chamber, I can feel the powerband which hits around 3500RPM on the laguna tach. a slight bit of low end was lost but nothing too bad.

results: 38mph with the stock 12mm carb and my 220lb ass on the bike. I cant wait till I throw a 15 SHA on this thing and see what it does.

1217122385_laguna_pipe.jpg

Re: derbi laguna sport owners, read this

Re: derbi laguna sport owners, read this

***VANILLA BLUNDER*** /

awww vic thinks other people have his sweet shit. you are my fave

Re: derbi laguna sport owners, read this

haha nice! i remember seeing a laguna sport for the first time and going WOW STOCK EXPANSION CHAMBER?

.... =(

those bikes deserve to go 60mph based on looks alone.

Re: derbi laguna sport owners, read this

i've never seen a faster moped than a laguna sport

Re: derbi laguna sport owners, read this

i did this same exact shit with my old puch pipe

shortened the stock header and welded it to the front of the muffler

it helped alot for a cheap ass mod.

Re: derbi laguna sport owners, read this

thanks vic,

your amazing..

derbi laguna sport owners, read this

Also if you drill out the baffle it will flow better and go fasterrrrrrrrrr.

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