MotoCreations Boom Tubes exhaust for the S4RS

[COWBOY]

Damn, wish they'd work for the 04-06 S*Rs.  That's exactly what i want on my S2R.  I'm talking to a number of shops about custom builds but haven't found one i'm comfortable with yet.

What would vary on a 2005/2006 S4R/S2R version of these?   To get this to work would it just be a matter of the header or is there some kind of routing difference as well?

[duccarlos]

Mark told me mid August to prototype the S2R 800. Not sure if I can wait that long.

[Airborne]

I can't wait. Its funny how all the SSS nuts are swarming this thread, the SSS is basically why I went with the s2r over the 695. Like he said, why cover that up with pipes, stock or otherwise.

[He Man]

I think the main difference in the S4RS an the other SSS bikes is the diameter of the header tube. the S4Rs is suppose to be larger, and i think theres also a difference in the location of where the headers connect to the heads because the S4R and S2R1000 have different strokes.

If you look at the custom SBK Swingarm black foggy, that set of boom tubes was completely welded together by stock pipes, so thats a possibility if you know how to weld/ know someone who does.

[COWBOY]

I think the main difference in the S4RS an the other SSS bikes is the diameter of the header tube. the S4Rs is suppose to be larger, and i think theres also a difference in the location of where the headers connect to the heads because the S4R and S2R1000 have different strokes.

If you look at the custom SBK Swingarm black foggy, that set of boom tubes was completely welded together by stock pipes, so thats a possibility if you know how to weld/ know someone who does.

i have an 800 S2R so the S4R parts are the same as mine (midpipe, exhaust, etc).  I'm more concerned about the elliptical shape motocreations mentioned.  if that's true then I'd need to replace the entire header or atleast cut and weld the correct size shape header onto that part which could lead to other issues.  I'm also concerned about routing since the engines are different layouts.

[He Man]

i have an 800 S2R so the S4R parts are the same as mine (midpipe, exhaust, etc).  I'm more concerned about the elliptical shape motocreations mentioned.  if that's true then I'd need to replace the entire header or atleast cut and weld the correct size shape header onto that part which could lead to other issues.  I'm also concerned about routing since the engines are different layouts.

Yea i think the S4R share the same parts, but I remember reading the Rs has larger headers. Why the elliptical shape issue? excuse me, but I can't seem to find Motocreations post on that issue (ctrl F:ELLIPTICAL  )

[COWBOY]

due to the oblong exhaust port unique to the S4Rs that immediately is radiused and changed in outer profile into round tubing and then offset for the vertical cylinder for suspension linkage clearance. 

oblong -- elliptical.  maybe I misunderstood but it sounds quite different regardless.

[MotoCreations]

There are three different styles of exhaust ports.

#1)  old-style 4-valver: 748/916/S4/S4R -- two round exhaust ports coming out of the head.  Exhaust header is a 2-into-1 to recombine the exhaust ports.

#2)  S4Rs: One giant oblong port -- this needs to transition to round for the exhaust system routing itself. Here is a pic of the gasket for the exhaust port:
           

#3) 2-V'ers.  One round exhaust port (although there are small differences in early 2V's -vs- DualSpark series).

The exhaust port on the S4RS is more centered on the engine due to the new different head design.  Thus the clearance issue with the rear suspension linkage. (And why Ducati made the change in rear suspension for the new Monsters for use later with the newer Testastretta heads)

[duccarlos]

So what is the difference between the S2R 1000 and S2R 800?

[TAftonomos]

For the S4Rs we need to overcome one unique obstacle in regard to the system.  Thus special tooling is being made by a 3rd party (thus the delay) due to the oblong exhaust port unique to the S4Rs that immediately is radiused and changed in outer profile into round tubing and then offset for the vertical cylinder for suspension linkage clearance.  Front exhaust port routing isn't as horrible as you have a few inches to make everything work.  Worse case scenario is we will have to do the exhaust headers for the S4Rs by hand fabrication. (and raise the MSRP for S4Rs systems to account for that)

Yikes, even higher pricing?  I'm lazy, and thats why I wanted to buy a set, but $750+ for 8 some odd feet of stainless tube and a pair of flanges is to much for me.  Time to build my own

Round tube to oval hole....Mandrel die, pressed, done.

[He Man]

Yikes, even higher pricing?  I'm lazy, and thats why I wanted to buy a set, but $750+ for 8 some odd feet of stainless tube and a pair of flanges is to much for me.  Time to build my own

Round tube to oval hole....Mandrel die, pressed, done.

Do you have access to a Mandrel bender? You could custom bend your own pipes easily if you did. But more often than not, you don't see high quality pipes that are bent numerous times because it is impossible unless they are very generous bends. That's where wielding comes in handy, but to weld SS, you need a skilled TIG guy, not just some random dude on the corner of the st.

But if you DO have all that. Damn hell! Go for it! Nothing beats homemade customs parts!! Now Im getting desprete enough to just get some left over pipes and go do this myself. It wont look too nice though since it would just be scrap exahust pipes from other ducatis.

[NAKID]

So what is the difference between the S2R 1000 and S2R 800?

I think it's just the length of the pipes needed for the extra stroke...

[He Man]

I think it's just the length of the pipes needed for the extra stroke...

That makese sense, but the Quad D exbox works for both S2R800 and S2R1000. The only difference in the newer models is the O2 sensor port. So who knows.

[NAKID]

Are you sure they aren't seperate models?

[He Man]

Are you sure they aren't seperate models?

Yes, there was a member who had both an S2R 1k and S2R800 and they were interchangable, minus the port for the O2 sensor since he actally had one that was sold for an S2R 800. he contacted motowheels or quad d themselves at one point since an S2R1k buyer wanted it, and it turns out it does fit. I looked up the bore x stroke of both bikes and the stroke is different on each, so i dont know what to say lol. unless someone who has worked on both bikes steps up.


Whats the update on the tubes? im stil waiting on you guys to make an S2R1k version after you release the S4Rs one!