Custom Shorty or Cannon?

[shaheeb]

The little 200 that could needs a little help in the respiratory department.

I am considering buying a Cannon Racecraft silencer. Or removing the q stealth and cut it down shorter to a custom shorty. Are there any cons to this? It seems like a silencer is very simple but I had to ask.

The goal is to liven up the bottom end.

[Jakobi]

Originally Posted by shaheeb

The little 200 that could needs a little help in the respiratory department.

I am considering buying a Cannon Racecraft silencer. Or removing the q stealth and cut it down shorter to a custom shorty. Are there any cons to this? It seems like a silencer is very simple but I had to ask.

The goal is to liven up the bottom end.

My beliefs were that a longer pipe/more volume will boost low range torque (think powervalve cover). By shortening the pipe and reducing volume you're going to cut back bottom end and boost over rev.

I could be way off the mark though

[stainlesscycle]

i believe the pipe needs to be longer before the back pressure taper to affect the bottom end.. shorter muffler just gets louder - at least for me anyways. cutting the silencer shorter should have little effect on the power...

[thumperrider1]

Have you had the head milled yet? Tighten the squish for more bottom end.

[Jakobi]

Originally Posted by thumperrider1

Have you had the head milled yet? Tighten the squish for more bottom end.

For more all over!

Best coin you'll spend on a 2T

[socalgasgas]

A head mod is the way to go but to answer your question 2 strokes would run a short silencer in supercross for more punch and a long one in motorcross for more top end

[twowheels]

Originally Posted by socalgasgas

A head mod is the way to go but to answer your question 2 strokes would run a short silencer in supercross for more punch and a long one in motorcross for more top end

Maybe that's how they do it in California ... but in the rest of the world the longer silencers mellow out the power AND restrict top end.

Mill the head - you'll be glad you did!

[socalgasgas]

I suppose you're right that's probly why the big five are out here. I do know that when traction is good and I'm running my carbon fiber buds racing silencer there's not many that can hold with it on a tight course it just revs out very quick. When conditions are a little slick or are opened up quite a bit more I run 1 of my carbon fiber silencers that I made which are little bit longer and seem to run forever on top but then again this is california

[Jakobi]

Unless if the silencer is seriously restricting flow I'd say it would have very little effect on performance other than sound (and we all know a bike that sounds faster feels faster). The chamber will have more profound effects on the engine characteristics. A head mod and squish correction will make it run the way it was designed too. Tightening tolerances to factory spec can only make a good thing better.

A shorter pipe = less back pressure = faster revving and more over rev
A longer pipe = more back pressure = slower revving and less over (may feel liek it revs for longer though)

I have a feeling you're both saying the same thing..

[(F5)]

Mufflers wont affect the power that much, (there's already a stinger section on the pipe) but will affect our ability to access land. Rip it apart & repack it with decent material, but clear out the perforated holes with a torch.

With my 200 the best things I did were
1. LTR jet kit
2. Took a base gasket out (they come std with 2) & machined the head for 1mm squish clearance + took a little out of the chamber as the combined affect would have raised the compression ratio too much. Think I aimed for 14:1 running 95 oct gas.

This gave it more bottom end & ability to hold onto a gear in a hillclimb. Actually the range was improved right the way through.