[Classic11]

Decided to make my own thread after threadjacking for a while on the 'one more exhaust' thread.

Pieces I started with, 2 2" 45 deg, 2' 2.5" straight, one 90 deg 2.5", 2 180 deg 2.5", two 1' sections of 2" perforated pipe, fiberglass muffler packing, half sheet 16 gauge brushed stainless

So far added 1' of 3" tubing, thermal barrier, possibly use exhaust wrap

All metal is 304 stainless and all bends are mandrel

R1200R Exhaust work in progress - YouTube

So far I have the tubing ran to where it is in the video and took this morning to cut a 3" tube in half longways, cut some 3"x12" strips of the sheet, and disassembled the rear to the frame. Next step is welding the muffler shell together and working on the ends and tip. Also have to relocate the seat release and finalize how I am mounting the muffler and plate.

 

[Hoshiko]

Nice,
I'll be checking the progress.

 

[Classic11]

Progress is halted for a few days, went and got another tank of shielding gas and didn't check what they gave me. They gave me argon/co mix and I didn't think to check before they closed for the weekend.

In other news I did put my bike back together and put 200 miles on today. So all is not lost

 

[hemiwes]

Hey Classic, are you going to put exhaust wrap on the area that is close to the tire? I wonder how much heat will be around that area. Looks amazing so far! Might have to wait on an exhaust system until your final product!

 

[Classic11]

Hey Classic, are you going to put exhaust wrap on the area that is close to the tire? I wonder how much heat will be around that area. Looks amazing so far! Might have to wait on an exhaust system until your final product!

I am about 95% sure I will be wrapping the exhaust. My buddy has a 50' white roll left from his project that he is selling me half price. It has done a good job protecting his delicacies.

88 mm on a 383 stroker lt1.. yes it is very fast and sounds frankin awesome.

 

[Classic11]

Obviously way too long and hanging too low but gives an idea of the direction. Still need to move the seat lock and the license plate mounts. Also not using this shell, the sheet is too thin and can't get enough heat into the tubing without warping.... Now the wait for more tubing in the mail

 

[Hoshiko]

Hey Classic11, I like your thinking, I'm sure the final product will look awesome.
Now, all you need is a decent camera.

 

[Classic11]

Ok, finally got back out to work on it. Good news is I am getting close and I have figured out all my problems except what the tip should look like.
1. Put another easy turn in the pipe to get it tucked up closer underneath
2. Cut out the thin sheet from picture before and had to clean up the edges of the tubing sides (make them true ready to weld) Still need finished welded. It just aggressively tacked together now.

3. Cut the mount for the seat lock out and devised a plan to move it.
4. Brainstormed and cussed about intake, think I have a plan for it now though.. I don't like the air filter or where it is.

5. Cut out both ends from sheet of stainless and got a 2" hole cut in the center for tip/exit. Other end is getting plasma treatment to cut out a ring to mount another end piece via rivets so I can re pack later.

I was asked today if I liked to work on my bike more than ride it. It's been so hot and after my ticket early season, I'm ok working on it.

 

[beaujarle]

Impressive...

 

[Hoshiko]

I was asked today if I liked to work on my bike more than ride it. It's been so hot and after my ticket early season, I'm ok working on it.

I wish I had space to have tools and work on my bike, if that was the case, I'm sure I'd buy an old, abandoned bike to put back on the road, and then get another one and so on, may be keep some as a constant work on bike, ohhhh space in my town is priceless.

I got a ticket last year, but fought it and won.

 

[Classic11]

I got a ticket last year, but fought it and won.

I got a lawyer and all, we spent the afternoon in jail and they impounded our bikes. I was going 98 in a 55 and in Illinois I guess they are pretty serious (and broke) about speeding. All in all I spent around 1300 after all said and done. As far as the workspace and tools, it's all my friend's. He helps me and I help him with what I can.

Ok got a lot done on the bike today, was hoping to get it done but no luck. Thought I had a video of it running on the phone but went to upload and it was like .5 seconds. The only thing left to finish is heat shielding, mount (failed attempt today), license plate and light.

This is what I was meaning I don't think I got a pic of it after the plasma cutter

Ok so this is it, it's all finish welded

Realized I didn't get a side shot.. It sounds pretty good, little quieter than I was hoping. The tone is really good, I will have to make a video and check it this time. It will probably get a little louder after I burn out some packing. I tried it with no packing just holding it and it was a little raspy.

 

[drDave]

Yow. . .apologies from my state of Illinois. Yes, they are really really serious about radaring and ticketing for speeding. A good argument for a top quality radar detector. Looking forward to hearing about how your underseat invention works. Really nice looking work!

 

[Happy Camper]

**** Classic! That tail-end looks awesome! Good Work my man, good work.

 

[Clem]

Lookin' GOOD !!!

Classic11
Really nice looking work!
+1

**** Classic! That tail-end looks awesome!
Good Work my man, good work.
+1

Sorry about the video. But the shopwork is awesome.

 

[Hoshiko]

Ok Señor, listen to me, I spent so long whining about the original exhaust that even my wife told me I was loosing my mind, made a really crappy tip I kept for no longer then a month, finally I WAS extremely happy with my short exhaust, then you come, not only refreshed the idea I thought it was impossible of a good looking under tail exhaust, but also do it?????????

My respects.

Keep us posted with the video please.

 

[Classic11]

Thank you for all the positive comments , starting to think I should start making high end exhausts for less mainstream bikes that lack aftermarket support... I will definitely take video next trip over. just wait till it's polished!!

 

[Hoshiko]

starting to think I should start making high end exhausts for less mainstream bikes that lack aftermarket support... I will definitely take video next trip over. just wait till it's polished!!

Good thinking right there, I sent emails to almost all exhaust manufacturers and all replied basically the same, we don't make anything for that bike and don't plan on doing it.

And as you can see, only in this forum, many people are interested on changing their exhaust.

See you soon

 

[Classic11]

gives an idea of the sound, keep in mind it is inside a barn.

2011 R1200R Classic Undertail Exhaust - YouTube

2011 BMW R1200R Classic Undertail Exhaust - YouTube

What do you think of the sound???????

 

[Hoshiko]

Considering the barn and my lap top speakers sounds good, I replayed on youtube that I want it to see the whole project finished but will say it here again.
Thanks Classic11 for keeping us busy online on productive stuff.

 

[Classic11]

Considering the barn and my lap top speakers sounds good, I replayed on youtube that I want it to see the whole project finished but will say it here again.
Thanks Classic11 for keeping us busy online on productive stuff.

I am ready to be done also. Next on the agenda is figuring out the heat shielding.. I'm thinking I will use the woven material underneath the tail and make shields out of sheet aluminum. The shields will be suspended around half inch above tubing and muffler via washers and rivets. unfortunately, I can't rush it too much because I want it to be as close to perfect as I can manage. I still have a couple days until I can work on it again.

As far as keeping you online, at least you're not wasting your time looking for something like you want.. this is as close as we will get