[sameer9797]

Originally Posted by 2StrokeJunkie

@ sameer - sleeves are a cheaper option and can be pretty good if done from the right place. The advantage with shoving in a sleeve would be you can design your ports on the bore and the sleeve alot more easily as its easier to shave off the metal. Allignement and quality of the sleeve would be critical . You can also choose your piston type and size - standard to big bore. BTW in which part of bangalore are you based ?

I will have a check on it. I still have lots of life left in my bore though.
I am put up in BTM layout, Found a good tuner nearby for my bike. I am pretty satisfied with his work. So you are @ Mumbai ?

[2StrokeJunkie]

Nope am currently based in namma bengaluru ( did u notice the bengal ? ) :P . All the best with ur build !

[sameer9797]

Originally Posted by 2StrokeJunkie

Nope am currently based in namma bengaluru ( did u notice the bengal ? ) :P . All the best with ur build !

Thanks dude, in that case we must catch up sometime, Birds of the same 'Stroker' , must flock together !

[sameer9797]

So Guys, after all the discussion we have had, I have come to the following conclusion about my 5 speed exhaust replacement :

1) RX- 100 Silencer : I have ruled this option off, as putting the 100 silencer on the 5 Speed will decrease the performance and the pick up

2) 135 4 Speed silencer : As the 5 Speed bike has a bigger exhaust from the Bore, when compared to the 4 Speed, and the porting is different, This choice is obviously ruled out.

3) Expansion Chamber: This is my favorite one. However, I have kept this option on hold because :

a) I do not want to re-bore every 6-7 Months for now , as I have already done two Running-IN periods that too continuously. I hate Running-in periods

b) I haven't stocked up 5 Speed bores yet, so for now skeptical about this option.


4) In built : I'm doing some R&D on how this one works.

Basically for now, I need something that

a) gives me a great exhaust note and sound .

b) Does not decrease the power, pick up must either increase or remain constant.

c) Does not affect the Bore or the engine Life,

d) Does not cause seizure of Piston.

Any pointers please ?

[2StrokeJunkie]

Theres nothing wrong with stock RX100 or RX135 chrome silencer. Just dont expect to work like an E.C. , which its not. Keeping your requirements in mind i would suggest you run the stock chrome exhaust , ro alter the exhaust note you can modd your muffler and you might see an increase in performance too. You can either get a muffler built or modd a stock one. Your mech should be able to help you out.

[sameer9797]

Originally Posted by Ajaybiz

Sashi Chamber Works at siddiya road 2nd cross does good chambers ask him that you need a calculated one done by Mr. Bhatt (ex TVS race team guy).

Guys after all the discussion, I have finally zeroed in on getting an expansion chamber ,

You win some and lose some, so keeping the fun aspect in mind, I am ignoring negative effects of expansion chambers ,

I guess its worth the FUN.

@ajaybiz : Mate I had been to Sashi Chamber works, But unfortunately the shop was closed to a wedding at the owners place I am told.

I am planning to visit the shop again next weekend.

Any inputs on what all I need to specify to the GUY would be highly appreciable

[sameer9797]

Originally Posted by 2StrokeJunkie

I dont see the point in giving you names of welders and fabricators. However i will help you out with a one stop shop. Tirumala Motors - JC Road.

@2StrokeJunkie: Mate I had been to Tirumala Accessories as well. Its just beside Mavalli Mosque and just before Minerva Circle ( On right you get JC road) I hope that's the right place ??

The bloke out there had readymade Expansion Chambers. Following is the sum up of my visit :

1) By inspection, I dint find the width of the exhaust to be 19mm, which is the size of the outlet of 5speed Bore.

2) When I asked him , he said the same chamber will fit both 4 speed and 5 speed, ( even though the exhaust size is different) . It seemed more like a one size fits all kinds.

3) Price quoted was between 1.5 - 2K

4) There was no glass wool at the end, he said he can get it done at extra cost.

5) He claimed that the chambers were made by Specialist called Muttu.

6) The chamber has 11 Joints, ( 11 Points where the metal was welded or expanded) . I have been told that 11 Joint chamber is not the one to go for. A 16 joint chamber is the one to chase for. Clarifications please ?

7) He even had in-built silencer for the same price.

Conclusion: I somehow was not fully confident so dint buy one from him. Thought will post it before I finally go in for one. Another friend of mine suggested a guy called Muttu . And @Ajaybiz has suggested Shashi Chamber works.

Ideally speaking if you or @Ajaybiz can spare sometime and come with me in the coming weekend, I'd be grateful to you guys.

PM me your contact numbers please.

[Ajaybiz]

Sure usually Saturday afternoons I visit my mechanic to handover spares for my builds will let you know the timings, we can catchup there.

[2StrokeJunkie]

hope Shashi can satisfy you. he makes some of the better chambers for RXs around here. If u are still unhappy i would recommend you visit Mr. Chinoy , maybe he can help u - Ajay can put in a word too. Have you figured out what kind of power you are looking for ?

ps: how many chambers did u see at thirumala ? muthu is a well known chamber builder , glass wool costs all of 50 bucks along with install , 1.5k is an extremely decent price. Any particular reason for specifically a 16 piece chamber ?

[sameer9797]

Originally Posted by Ajaybiz

Sure usually Saturday afternoons I visit my mechanic to handover spares for my builds will let you know the timings, we can catchup there.

@Ajay
Yeah lets catch up, with that excuse I can get to see your rebuilds too

Originally Posted by 2StrokeJunkie

hope Shashi can satisfy you. he makes some of the better chambers for RXs around here. If u are still unhappy i would recommend you visit Mr. Chinoy , maybe he can help u - Ajay can put in a word too. Have you figured out what kind of power you are looking for ?

ps: how many chambers did u see at thirumala ? muthu is a well known chamber builder , glass wool costs all of 50 bucks along with install , 1.5k is an extremely decent price. Any particular reason for specifically a 16 piece chamber ?

@2StrokeJunkie :

While I was checking out the chambers, The shop owner said the chamber will fit any RX , and I could try all of them and fit whichever seems best to me . For this reason, I dint have the confidence to pick up one. I was not sure and thought maybe a custom made one is the better choice.

Whats your take on it ?

Basically I am looking for a mid range powered expansion chamber, which should also encompass overall performance. It must roar after say 40 KMPH
Just cant wait to hear the 5 speeder scream!

I saw about 5-6 chambers there. He had a good collection of them varying from Mid range to top end chambers. I was more interested in the mid range.

Once of my friend who is into racer , told me to go in for 16 bit chamber. He was of the opinion that it will have more power. I forgot to check with him if the 16 bits work well even for the mid range powered chambers.

Whats your take on it ?


@Ajay & @2strokeJunkie : Please do PM me your contact numbers, if convenient we can catch up this weekend

[speedfreak7116]

Just go to Thirumala near JC Road and ask him for a Bangkok Chamber. You will have to make slight modification/welding work to make it fit on the 5-speed but out of 6 years experience owning and modding a 5-speed I can guarantee you that nothing works better. Just put it on a stock bike and it comes alive. Tried and tested.

[sameer9797]

Originally Posted by speedfreak7116

Just go to Thirumala near JC Road and ask him for a Bangkok Chamber. You will have to make slight modification/welding work to make it fit on the 5-speed but out of 6 years experience owning and modding a 5-speed I can guarantee you that nothing works better. Just put it on a stock bike and it comes alive. Tried and tested.

Thanks for your inputs..

Never heard of something called Bangkok Chamber, A little more details please... How many Bit chamber is it ? Is it mid range or High end Chamber ? hows the exhaust note ?

[2StrokeJunkie]

Here is your free lesson for today : Bangkok Chamber - top end chamber , obscenely loud , amazingly built , decent torque .

Sameer I dont wish to pass a judgement but with all the wasted posts of mine i feel that you are an overtly analytical person who is extremely afraid of making a mistake. Mistakes give you tons of experience - and you always learn something new - so do not be afraid of making mistakes , otherwise you will never enjoy yourself - Also no lessons in life are ever learnt when it is given for free - and let me try to answer your last question - "Trrrring trrrrrring trrrrring trrrrrring" - apologies if the rendition is not upto the mark.

[yamdoot]

Here is a pic of the chamber on my 4 speeder speedfreak is talking about i guess. We know of it as the malaysian chamber [built for the rxz].
There is absolutely no low end, very min. midrange but yes the top end is good. Maybe on a 5 speed it will perform better. This one sure is the most good looking chamber available.

Like 2strokejunkie said you have to learn from mistakes. I am still searching for the perfect street chamber for a stock 4 speeder after trying and modifying 3 chambers!

[sameer9797]

Originally Posted by 2StrokeJunkie

Here is your free lesson for today : Bangkok Chamber - top end chamber , obscenely loud , amazingly built , decent torque .

Sameer I dont wish to pass a judgement but with all the wasted posts of mine i feel that you are an overtly analytical person who is extremely afraid of making a mistake. Mistakes give you tons of experience - and you always learn something new - so do not be afraid of making mistakes , otherwise you will never enjoy yourself - Also no lessons in life are ever learnt when it is given for free - and let me try to answer your last question - "Trrrring trrrrrring trrrrring trrrrrring" - apologies if the rendition is not upto the mark.

@2 strokeJunkie :

The guilty is charged!!

Well I do accept your concerns, and I have taken your feedback positively .

I would agree with you, but in my humble opinion I also believe that the issue was over-reacted!

In my post, I have already admitted that this was my first chamber, and needless to say , I had some apprehensions since chambering is an uncertain modification which doesn't have a single best solution.

Now when I look back, I think I am clear with the fundas, all thanks to you guys who have posted stuff in detail.

What happens when people go to mechanics and ask about Chambers ?? Will any mechanic give out the right details ?? The mechanics will always say, give me 5K I will get one done for you!

I guess that's what Team-BHP is all about , this thread not only helps me, but also millions of other 2 stroke enthusiasts who would be reading this post and learning from it.

So please don't call your posts as wasted, because I certainly did value them and I thank you for it , as did the other bikers who went through it and in fact I received PMs on this thread.