I would stay away from doing this, reason is I doubt if anyone is here in Kolkata to do that jetting! I simply can't risk my 'gun for this. Mithun thanks for posting that awesome pic, pshyco recommended UNI foam filter too. But the complexity that is involved, I do not have the gutz to carry the experiment right now, and my mind says - control control

A dumb question from me, what do you mean by getting a chamber? A barrel or the piston cylinder? Do a oversize?

Well my friend, a chamber is called an "expansion chamber". Its a performance exhaust for 2-strokes. Search wikipedia for a better understanding on explansion chambers.
A chamber can give you a great bump in power based on what its tuned for. Some of the best designed exhausts of race engines can contribute to almost 80-100% more performance. It works on the principle of sound waves and relies on the tuned length for the gases to emerge or scavenge.

Thanks for the clarification Joel, I searched and here is a nice animated article which cleared my confusion. I have seen the Proton silencers in that shape at the belly, but the thick sound that comes from a stock shogun silencer, reduces dramatically using a Proton silencer?

to be precise, the airscrew adjustment would help adjust the pilots to a small extent..the needle controls only the main jet circuit

you're welcome man..ideally, 27 pilots on the RX is good enough. You wont need to change that. To oil your UNI filter, just soak it and wrench it and let the excess oil drip..It should be slightly oily, enough to allow air to flow through, and enough to catch the dust particles. Also, for washing the UNI, you can reoil it using 2t oil as well..Those oil kits are a serious waste of moolah.Last but not the least do clean your filter as and when u feel its looking dirty..Surf excel and warm water works best

this is what it looks like..These are chambers I made for my street bike and the drag project respectively

2 strokes are very sensitive to performance tuning. Take it both ways good and bad. A job well done will fetch some awesome gains in performanced a careless mistake can lead to catastrophic engine failure. All the best with your ventures. If you don't feel confident enough to start tuning your bike, I'd suggest you first start with doing general maintainence yourself. That will connect you well with your machine and slowly you can know whats going on where. Hope this helps

Just a curiosity, will these fit on a Shogun using a cat con silencer?

Basu your catcon will be of no use if you go for a chamber, if you opt for a chamber with stock jets you will hardly find any difference, bigger jets uni filter and a chamber will make you fly off the bike especially in mid range.



Atul thanks for the info but you didn't tell me whats the appropriate main jet size that i should opt for.

180 mains is the appropriate main jet you'd need..needle position adjustment would be needed as well

cheers

@atul: How good will the RXZ/135 5-speed carb do on Shogun with UNI/K&N filter.. instead of up jetting

you can design a chamber specific to your shogun for that. You would need to get rid of your catcon exhaust for that.

never tried it practically man..but should be good..a bigger carb would definitely help. But you would need to accordingly upjet/downjet for the carb to adjust the fuel requirement of the 100cc shogun motor. Ideally should be a very good option. The RXG 4 speed carb is also said to work well on the 5 speeds better than the oval bore carbs

I have plans to get the chamber and the carb at the same time so can get max out of the bike

U wont believe how many guys I've tried convincing on this part. None would listen, good for them. The oval venturi was more of a economy step to reduce the consumption thru part throttle. 4-speed's 22mm round venturi is best, gives good power spread over the oval fellow. Works well on the shogun too.

Ya right. Even if you sweep all the TVS spares outlets, u'll not find a spare cylinder. I wont suggest u this, unless you have a healthy stock of O/S pistons/rings and cylinders. Also a chambered bike has to be set-up spot-on. Timing, jetting, etc.
However having ridden some really fast works shoguns in full rally trim, I know how intoxicating it is.

i totally agree..the 5 speed carb is purely for ecomomy..there you have it mithun

a chamber would totally improve the power characteristics of the bike..i'd suggest you go for it..whats the max revs a stock shogun does joel?

Atul where can i hunt for a 180 mains in bangy ! Joel can you help me in this regard please