[TaurusAl]

Can anyone suggest a good place in Mumbai preferably Andheri to Malad side to get a good Goldstar with Glaswool ? I have been trying to get one from Sans, but he keeps saying he does not have stock. Tired of waiting and looking for availability in Mumbai.

[Rennjit]

Is there a Goldie which is as good (or bad) as a factory bottle? Meaning one which is not louder than a shorty (Ci - std like) and not restrictive than a factory longy (Ci-electra) at best. Can i get a quiet Goldie pls

[tharian]

Originally Posted by Rennjit

Is there a Goldie which is as good (or bad) as a factory bottle? Meaning one which is not louder than a shorty (Ci - std like) and not restrictive than a factory longy (Ci-electra) at best. Can i get a quiet Goldie pls

You can achieve that by stuffing maximum amount of glasswool into a Goldstar exhaust. By maximum, I mean, filling glasswook and using a tool to compress it inside and again stuffing.
This way the idle and low rpm note is lower than the short bottle , at the same time it is free flow.
In higher rev's , it is probably as loud or a bit louder than the short bottle muffler

[starter]

Originally Posted by tharian

You can achieve that by stuffing maximum amount of glasswool into a Goldstar exhaust. By maximum, I mean, filling glasswook and using a tool to compress it inside and again stuffing.
This way the idle and low rpm note is lower than the short bottle , at the same time it is free flow.
In higher rev's , it is probably as loud or a bit louder than the short bottle muffler

Hey Tharian,
Is there a place in Bangalore where they would do this for me?
Cheers,
Deepak

[tharian]

Originally Posted by starter

Hey Tharian,
Is there a place in Bangalore where they would do this for me?
Cheers,
Deepak

You can take it to any Bullet mechanic around Shivajinagar or you can buy the glasswool from the shops that repair refrigators and DIY. But, you need to be careful when handling glasswool since it is glass after all.

[Majumdarda]

Hello guys,

I have just fitted my Bullet 500 with Short bottle silencer available from the RE dealership. I understand that this is the short bottle muffler from the Electra, and it was a direct fit.

Observations :-

Off-course the sound is much more bass - ier now if I compare with the stock; and I was happy , till I heard some of my riding colleagues using something like Megaphone, Goldstar, etc etc.

Now I am asking a pretty naive question, as I do not have any clear understanding in this topic.

> What makes a silencer give a bass - ier sound? I have heard about glasswool, so is it something like more the glasswool, more the bass?

> Though no intention to modify the silencer now, but still which silencer gives a good bass. I am not concerned about the loudness factor as that irritates me a lot, but one that gives a good observable bass, making the presence more marked yet soothing.

> Also, I have not been able to understand till date, that if I just replace the muffler (not the entire silencer) how is the mileage getting affected? Yes, off-course, for getting to hear the thump if one revs the engine, the mileage will drop and that is expected; but if the riding of the rider does not change, then how can replacing the muffler affect the mileage. As far as I have observed on my Amun-Ra I am getting approximately the same mileage, even after replacing the muffler with that of the Electra.


Phew. That is indeed some questions out there I understand, but please help me in clearing my doubts as I am tired listening to contradictory verdicts from every corner.

Thank you in advance for your time and patience in helping me out.

Kind regards,

Bikramjit.

[tharian]

Originally Posted by Majumdarda

Hello guys,

I have just fitted my Bullet 500 with Short bottle silencer available from the RE dealership. I understand that this is the short bottle muffler from the Electra, and it was a direct fit.


Thank you in advance for your time and patience in helping me out.

Kind regards,

Bikramjit.

Let me answer these questions as much as I can .

I have tried different kind of mufflers and bend pipe combinations on my 350 and 500 CI's and nothing can beat the set up you have now. It is neither too constricted like the stock one your bike came with nor is free flow like the aftermarket ones.

The ones you hear about, i.e- megaphones, Goldstars, Wildboars etc are all about the sound to the normal rider, which is why you see most of the Bullets with them fitted. They actually also aid performance and better breathing of the engine. A big single like the 500 actually runs much better with a free flow once the engine has set in. Ofocurse, there are many who rev the nuts of ther Bullets with a free flow exhaust and screw up a lot of components in the process.

The bass is got from the glasswool since in a glasswool muffler, the glasswool absorbs all the treble which leaves only the bass which is what is attractive because of the thunder kind of note. The rev's increase and what you get is a louder note and on lower rev's, a very muffled note.

On the UCE engines , its quite different becuase of the presence of the catalytic convertor in the bend pipe which in itself restricts the flow a lot . Remove that, and you get a bit more power., which is up to you.

I would suggest sticking your present set up for around 10-15k kms and then trying a free flow so the engine has set in by then.
On a 500 for sure, a free flow is good for engine breathing as it is less restrictive. The torque of the engine makes up for the torque you will miss out on the restrictive ones from standing start.
As to what type of muffler to go for, look for the ones that cover the full length of the bike and not the short types, it will be smoother and go for the ones with glasswool .Preferably a Goldstar type .

As for mileage, four strokers especially big capacity singles or multi cyclinders work best with a well made/tuned free flow exhuast and if ridden normally, will give you more mileage than the stock.

Hope I made sense.

[shan2129]

Hey Everyone.. & Hi Sans

I recently bought a Goldstar with Glasswool from Sans inc. for my TB500. Fitted it today & on first go, it sounds amazing & looks amazing. I covered 50 kms today after installing the exhaust & just to compare it with my stock silencer in terms of power change, I ripped my Bull to cross 100 KMPH mark.

Results :

Initial Power Gain : At least 10% increase in power
Mid Power Gain : 5% increase in Power
Top end Gain : Here, I think is the problem. For some reason, my TB500 is now not crossing the 100KMPH mark. I tried, but the engine seems restricted & the overall feel of my Thunderbird is heavier, as if the engine is struggling to produce acceleration.

If anyone could help me solve this mystery, I would really appreciate it.

[ArizonaJim]

My suggestion would be to reinstall the original silencer and take the motorcycle for a test ride.
If it's old level of performance and top speed returns you will know that the problem is the new silencer rather than some other issue.

Assuming the old silencer restores the engines power I would say the new silencer is too restrictive.

It is not uncommon for a restrictive exhaust system to add to low and mid engine torque which gives the feeling of a increase in power. The more restrictive exhaust will however keep the engine from producing power at high engine rpm's.

Many silencers have internal baffles that can be removed or have additional holes drilled thru them to reduce their restrictions.

This is the best I can come up with at the moment. Maybe someone else who has installed this silencer can give you better advice.

[shan2129]

Originally Posted by ArizonaJim

My suggestion would be to reinstall the original silencer and take the motorcycle for a test ride.
If it's old level of performance and top speed returns you will know that the problem is the new silencer rather than some other issue.

Assuming the old silencer restores the engines power I would say the new silencer is too restrictive.

It is not uncommon for a restrictive exhaust system to add to low and mid engine torque which gives the feeling of a increase in power. The more restrictive exhaust will however keep the engine from producing power at high engine rpm's.

Many silencers have internal baffles that can be removed or have additional holes drilled thru them to reduce their restrictions.

This is the best I can come up with at the moment. Maybe someone else who has installed this silencer can give you better advice.

Hi ArizonaJim,

Yeah, I did that. I installed the OE muffler back on & the top end power is back. I kind of feel that it's really not a good idea to go for any after market exhaust, at least for my TB.

Thanks for the help

[BlueRider22]

Originally Posted by shan2129

Hi ArizonaJim,

Yeah, I did that. I installed the OE muffler back on & the top end power is back. I kind of feel that it's really not a good idea to go for any after market exhaust, at least for my TB.

Thanks for the help

Hello, please share the pictures post installing the after market silencer. Also closely check if there are any air leaks from the joints.

[Trojan]

Originally Posted by ArizonaJim

My suggestion would be to reinstall the original silencer and take the motorcycle for a test ride.
If it's old level of performance and top speed returns you will know that the problem is the new silencer rather than some other issue.

Assuming the old silencer restores the engines power I would say the new silencer is too restrictive.

Hi Jim,

Thanks for the advise, I am in a similar dilemma with my Electra, I had installed a short bottle silencer from the dealership right at the time of delivery.
Initial months since the manual suggests not to push the bike a lot, I kept the speed under 80kmph, but now after 3 services done, I don't find my bike willing to go above 80kmph at all, gives a feeling of 'that's it no more now'.
I had a doubt whether it had something to do with the silencer, I still have my stock silencer brand new, I think I will go with your suggestion, fit that one and try it out for a few days and see how it fares.

Cheers!
Trojan

[shan2129]

Originally Posted by ArizonaJim

My suggestion would be to reinstall the original silencer and take the motorcycle for a test ride.
If it's old level of performance and top speed returns you will know that the problem is the new silencer rather than some other issue.

Assuming the old silencer restores the engines power I would say the new silencer is too restrictive.

It is not uncommon for a restrictive exhaust system to add to low and mid engine torque which gives the feeling of a increase in power. The more restrictive exhaust will however keep the engine from producing power at high engine rpm's.

Many silencers have internal baffles that can be removed or have additional holes drilled thru them to reduce their restrictions.

This is the best I can come up with at the moment. Maybe someone else who has installed this silencer can give you better advice.

Hi Jim,

had a small query regarding your post. I thought Glasswool type of mufflers are free flow ? It does not have internal baffles. It is a through pipe with glasswool. So, why would it eat my top end power ?

Also, had some problem with the muffler, so called Sans, he is ready to replace it with the baffle one. So, should I go for a baffle goldstar or stick to glasswool ?

[ArizonaJim]

The glasswool is the sound deadening material and it can be used in straight thru or baffled silencers depending on who made it and what their design is.

In your OP, you indicated a loss of power at high rpm's and this usually indicates a restrictive exhaust system.

That is the reason I mentioned the possible presence of baffles which were blocking the high rpm exhaust.

As you indicate the silencer which seemed to cause the problem is a straight thru design obviously baffles are not the problem.
That does not rule out a restriction being created by some other factor.

Air moving at high velocities can, under certain circumstances create shock waves of high pressure gas. If this happens the zones of high pressure gas can become restrictive to the free flow of the gas thru the tube.
This is sometimes caused by louvers pierced and formed thru the inner wall of the tube. There are other configurations that can also disturb the airflow.

In any case, it sounds like your Goldstar, for whatever reason is restricting the exhaust flow.

As you already know what your Goldstar is doing perhaps trying one of the baffled designs would be worth investigating although I would be the last person to suggest just throwing money at the problem.

Have any of you other readers tried a similar Goldstar on your Royal Enfield and seen similar results? Your input could help shan2129 decide what his next move is.

[csubhojit]

Originally Posted by ArizonaJim

The glasswool is the sound deadening material and it can be used in straight thru or baffled silencers depending on who made it and what their design is.


Have any of you other readers tried a similar Goldstar on your Royal Enfield and seen similar results? Your input could help shan2129 decide what his next move is.

Hi Arizona,

I am a newbie and a proud owner of a new RE Classic 500cc. This is my first bike (yes you heard it right) and while I am loving it, am also having a few experiences which, if helped out with, will help this poor soul a great deal.

When I ride it in the city (with moderate traffic), my right hand goes number after some time, so much so that I have to stop and put back some circulation in it. I feel its from the vibration, and have been told that a free flow exhaust system will help a good deal. Is this true? People have suggested something like the Wild Boar exhaust for RE Classic, saying it increases the thump as well as reduces the vibration. But isn't that contradictory? Or does it mean that suppressing the thump causes more vibration and hence it vibrates more with the stock exhaust?

My RE is not even a month old. However, I have an uncanny habit of maintaining things as if my life depended on it. My RE being my childhood dream, occupies a very special place and I would do anything to ensure that it stays in its best possible shape.

Any and all suggestions and advice are welcome.

Thanks in advance.