Exhaust system ?

Warbird - sounds like you have a one-off Akro now! Good job.

Yes - the multiple joints on the Busa Akro have been a point of discussion since their initial release. I'm still not sure what the final concensus was. Some owners were using sealant on each joint because they were leaking upon initial startup. Another owner says don't worry about it - let the carbon buildup seal the leaks so it will be a "floating" design and capable of moving when heated and cooled. I never really quiet knew what to make of it all. Doesn't sound like you need to worry.
 
BTW - the teams aren't using consumer model Akros. They use full Ti setups - some are specially designed by Akro for that particular bike only. I have no idea how many joints they use. ;)
 
I'm VERY particular about everything we do to our toys. Drives my wife crazy. But she knows in the end everything is as good as it can be, and that makes her happy. [I dont think she likes the long hours in the garage though]. I wouldn't use sealer or let the carbon build up although Im sure that works too. The Muzzy and the Two Brothers come nicely welded together, thats where I got my idea from. You know, I met Rob Muzzy 20 years ago at Laguna Seca Raceway. He built REAL FAST bikes then, and he still does today[Raptor]. Anything he says about going fast, is gospel to me!
 
Speeder T...my entire database is available to you for exactly the reason you started this post. Furthermore, I would be happy to try and give you competetive quotes on the
prices of these products. About the only one that I have not had the luxury of testing as of yet is the Sato, so I cannot remark on it.
But...I have been able to produce impressive power with EVERY SINGLE PIPE THAT I HAVE HAD THE OPPORTUNITY TO TUNE! One just needs to find out and appropriately tune the engine to the exhaust system. Simple as that. Let me know if I could help. Freddie/ECP
 
The fact that they use Akrapovics on most of the race teams says a LOT about the company and their products. I talked to an engineer from Akra many times and he said amost all of the technology learned at the track is incorporated into their "racing line" pipes. Lockhart lists the busa pipe as a "sport production" series pipe. This is incorrect according to the engineer at Akrapovic. The Akrapovic part nunber is S-S13R1-T, Lockhart has there own number which is 423-5417. Thats all it is, Lockharts own number for their catalog. The man at Akrapovic said there is only one pipe and the R in their part number stands for RACE series. The reason for stainless steel up front is because it is much less prone to cracking than titanium is. It is also much easier to repair than titanium. In other words much longer lived on a street bike. Besides, you can HPC coat the stainless and its impervious to just about everything and contains the heat like you wrapped your headpipes with header wrap. The next thing Im planning for my Akra is to carefully drill out the rivets in the canister and replace them with nice stainless button allen heads like the Muzzy already has![at least Im honest huh?]
 
Hey Speeder T, you will use the same [except new] gaskets under the block off plates. Some people use silicone,I think new gaskets are the way to go.[I only want to do it once] All you are doing is removing the pipe and replacing it with a flat plate to cover the hole. So you need gaskets just like used originally.
 
Speeder T, there you have it. The chance to aquire the pipe of your choice,get a fair price,and have expert tuning info all from the same place. TRUST ME, you couldn,t ask for anything more. It will make your purchase and install very painless. So contact Freddie at ECP and get on with it! You'll be glad you did. [Just click on Supertuner's profile, then click on home page address. It'll take you right there.]
 
I'm also running the Muzzy full stainless with carbon oval canister. It's a great pipe, a great deal, and it make the busa sound like is should ;)
 
Martinm2, I was listening to yours before I even got mine! [sound bite] Hve you looked at the polished stainless steel coating from HPC? www.hpcoatings.com I think. Pretty cheap I think. Busa2 has the same pipe I beleive with the HPC.
 
Ok! At first i was going to go with the Muzzy
system. After talking with a freind of mine
who helped build a big bore 750 years back i
am leaning tward the Akapovic. I have seen a
few of these pipes on motorcycles at the local get together spot on Sundays (Marcus
Dairy)Thank you for the replies!
 
Hey Todd, while we're on the subject,you should go to www.akrapovic.com then products then GSX-R 1300 Hayabusa and check it out. I quote:

The "Racing line" exhaust system is designed with knowledge and the latest technology applied on WSBK teams.

It goes on to say it weighs 10 pounds and gains 10 hp [no mapping,stock ecm the engineer told me] and blah blah blah.

I thought you might like to read this. By the way, that picture is not the busa pipe. The busa pipe is shaped much differently and has crossover tubes like the Yoshimura Titanium.
 
Yosh Duplex carbon, fits PERFECT no cutting or moding, no burning or rubbing, can looks bad A$$ and it sound really good, louder then the Akro but not as schrieky as the Muzzy. 5-8hp gain, maybe more with good tuning on a PCII. $700 from Star Cycle
 
Muzzy offers a quiet baffle as an option to the regular race can. Their full Ti exhaust with choice of Ti or carbon can is less $ than the Akro stainless with Ti can or Tri-oval stainless with Ti can plus weighs less. Bang for the buck is heavily in Muzzy's favor. Dyno results have shown the Muzzy to be among the best with the only differences being the point of peak hp plus they don't use multiple leaking pipe sections like the Akro.

Direct comparison of Muzzy stainless with Ti or carbo can to the others of same construction indicates a difference of HUNDREDS of dollars price wise.

These exhausts are all overpriced in my opinion. Why give in to extortion any more than you have to?



[This message has been edited by Todd (edited 30 July 2000).]
 
http://www.labusas.org/ubb/Forum1/HTML/003069.html


"The first one is stock ( 160,4 rwhp ). Second one is Stock with SATO exhaust ( 166,1 ) third one Yoshimura ( 166,8 ) and 4th is Acrapovic ( 163,9 )
Its difficult to read of the charts but the SATO is a little above all all the way up to 9000 where the yoshimura is a little stronger than SATO and the ACRA takes over by 9800 and is the strongest until the revlimiter cuts in.
My guess is that the SATO is best for stock Yoshimura for midly modded and Acra for heavily modded engines. NOTE. the SATO and yosh was with STOCK injection but the acra was with +5+5+5."
 
All of these pipes (except the Yosh) are apparently good for 7-8 horsepower. The real diff is price and weight. I chose the Muzzy full titanium exhaust with the round titanium can. It costs what some stainless systems cost but weighs half as much. The round cans are about a pound lighter than the oval ones, and they are louder also. Both of those things are bonuses to me. I chose a titanium can over a carbon can because when the packing blows out of a carbon can, the heat can damage the carbon fiber. Since I want it loud and have no intention of repacking, titanium only made sense. Titanium also turns a pretty blue color with heat, and my Bus is blue.
 
More:



"I had my busa dynoed again today. While the local shop has conservative hp. #'s. it does tell how much gain I had. First off the bike was bone stock as baseline of 148.4hp.
Bike now has 1 tooth down on front sprocket..a full muzzy stainless exhaust system with oval titanium canister...and the partial airbox mod with stock filter. No PC2 yet. Anyway, it dynoed 157.2hp.
Check it out.

&a=2055318&p=21548747&Sequence=0

"


GSX1360R
Senior Member posted 11 May 2000 05:05 PM
--------------------------------------------------------------------------------
"I have one on my 202 HP Busa. Need I say more? I will. I had an Ack on it at first and it sounded and looked like sh#t compared to the looks and sound of the Muzzy. Plus the Muzzy was $300 cheaper. The Ack makes one more HP on top whereas the Muzzy makes one more HP through the mid without remapping. Yes, the Muzzy headpipes are one but I had no trouble getting mine to fit whereas the Ack comes in 10 pieces with 20 springs holding it together. It was a no brainer between these two at least... "


OMEGA
Senior Member posted 11 May 2000 07:08 PM
--------------------------------------------------------------------------------
Been running the muzzy full ti with C/F oval off road can for several months. Love it. Fit is perfect, crafted like fine art, no sound like it on the market. Lee Shierts didnt buy the entire production run for nothing. Akro dyno's 1hp higher up top while muzzy 1 higher in the mid. Tossup. Muzzy is the only of the 2 available in full ti which means 1/2 the weight of a stainless system. For those wanting the absolute best, this is the one. 6lbs total system weight.

__________________________________________
Search the archives at H.org and LA.org there is TONS of info on different systems.


[This message has been edited by Todd (edited 30 July 2000).]
 
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