Exhaust Extensions.....more than bling.

[wayne]

For what it's worth, here's something you can do if you have the exhaust extensions. I find the RE5 a tad noisy and this helps.

The packing material is Rockwool. It is a basalt based housing insulator which attenuates noise as well as heat transfer.

After wrapping the internal "stinger" in rockwool, I partially slide it into the extension and then pack in as much extra insulation as I can using a wooden ruler or similar to stuff it in tight.

The flow of exhaust is not at all impeded (the stinger is wrapped pretty tightly in the fibre wadding as you can see anyway).

With a db meter in a static test it takes 3 to 4 db off the noise level at 4000 rpm.

People I ride with who own rotaries also notice the comparative noise reduction.

The extension's internal "stinger" with original fibre wadding being wrapped in rockwool:





Partially inserted into extension cone, stuff as much insulation into the gap and pack it firmly:



Almost fully packed and ready to have the endcap and circlip installed:

[Jess]

Very nice mate!

You are a true nerd! ;D

I am proud to count you among my friends.

Looking forward to your visit... I hope you can deal with my non standard bikes.

Best,

[wayne]

I'll have my Collector's Edition complete Star Trek with me..........I can see an all-weekender coming up !

Cheers,

[Jess]

Woo HOO!!!!

I'll bring the popcorn. ;D

Cheers!

[spottydog4477]

How are the extensions secured the back of the stock exhaust pipe?

ta

john

[wayne]

When the core is removed, there are 4 holes in the base of the extension cone that line up with the same holes as the 4 screws that are already in the end of the pipe.

So remove the 4 screws from end of pipe. Remove core from extension and fit extension thus that holes in bottom line up with existing exhaust pipe screw holes. The 4 screws removed earlier are refitted into the cone and back into their orginal holes. Core is reinstalled along with endplate and circlip refitted.

Wayne

[andouilleman]

I have two sets of the extensions .one set I purchased from mr.Jess with rotary recycles . He is on this fourm. I also purchased another set from another member on this board but it was his last set. Just wanted to say they do make the bike quieter and I haven't noticed and difference in proformance. They also work well with saddle bags to move the heat past the bags. They look nice with or without saddle bags. Hope this helps you decide about extensions. I think Mr.Jess still has some set to sell. Send him a message on here or email him to see if he can help you .

[timpa136]

I have two sets of the extensions .one set I purchased from mr.Jess with rotary recycles . He is on this fourm. I also purchased another set from another member on this board but it was his last set.



If I may clarify, I have another set for a future project. Glad you like them and I would like to see them on one of your bikes.

Tim

[HGH 770N]

Due to requests , I'm getting another 10 sets made ,
If any one requires a set please add message on here of PM me.

Rog

[timpa136]

Mar 16, 2017 1:43:51 GMT -5 HGH 770N said:

Due to requests , I'm getting another 10 sets made ,
If any one requires a set please add message on here of PM me.

Rog

If I may speak from experience, I found it much more comfortable to ride with at least one RE5 with silencers and/or a gearing change for cross country travel.
I'm the first one to love the paired up bike exhaust orchestra but without ear plugs, long distance becomes tiring. These look beautiful.    Tim

[andouilleman]

Hello sir what is the cost of your extensions that your having made. I like the one set you made and also like mr. Jess he sells bothof yall have nice products pm me if you rather not put price on fourm. Thanks or email me [e-mail].
Have a great day!