| Author | Message | ||
     Blackflash |
Ive been reading alot of post on the issues the 1125r and cr owner have delt with.One major issue is the can that leaves a dirty soot on your bike.I recently purchased a jardine to try it.I completely hated it.Ive come to a conclusion that not one exhaust manufacture has harnessed for what im looking for. 1 A pipe that wont blow the packing out. 2 That wont blow my eardrums out. 3 Doesnt change Eriks underslung design. 4 And of course one that requires you to hand over your paycheck and more. Ive had time to hack my share of these cans up and realized that nothing beats this can!!! And everyone says its not worth researching .I believe everyone that is selling pipes wants you to buy a muffler that is made of precious metals with a exotic price. Starting to scratch my head again and say why can't someone offer a service.The service would be to knock off the SS side tubes and reweld them on a 45 degree angle.This will keep the wheels/parts clean. Next add a few db & not a full blown eardrum blowout.After all this If wanted powdercoating/jet hot coating at a good price!! Im here and Im working on it.I have plenty of good hardworking americans that have small bussinesses around me.Some powdercoating can be seen on my R.I got rid of my 08 blues. Ive been a fab/welder for over 10 years now. I have the tools to do this .I just believe so far Im not happy with anything Ive seen or heard.I know this bike is newer and companys are sceptical on if they should persue this bike and fab something up.Well since the bad news and the very small amount of these bikes produced I believe that there will be fewer pipes developed .Thank god cause they all suck!!  If anyone is interested in services contact me. Ive had enough of these mediocre pipes that dont impress me.Right now I will be looking into sound quality that doesnt disrupt the powerband of the bike.Im not here to build a racepipe.If that comes about great! If this sounds good to you or if you are interested in what im aiming for please pm me.Im not looking to take your paycheck either.        After getting my wheels freshly powdercoated on my 08 r I decided to take care of the soot issue.Now im off to discover tolerable noise. | ||
| Avalaugh |
There is another guy doing similar thing with the stock can. http://www.ukbeg.com/forum/search.php?keywords=tub bs+exhaust&terms=all&author=&sc=1&sf=all&sk=t&sd=d &sr=posts&st=0&ch=300&t=0&submit=Search I think if you do come up with a good product you will be a very busy man. Keep us updated | ||
| Blackflash |
The link didn't work . I'll check later. The service will have the option to send your can in for the mod with a 1 week waiting time ,or a swap for one that has been done already and that is clean. I will use db meters and have video side by side comparisons. Even a cold startup showing where the fogged fuel mixture at startup blows away from the bike.Now does anyone have any extra cans for a fair price ? Even dented cans for more research. I've cut away 3 cans already . One had way to much db ,one is stock, and one already has the 45' mod. Which the 45' mod makes me happy even. But just a tad more thump would be great  | ||
| Blackflash |
I also want to note that I will be testing this thing on a dyno once I find a good operator that is consistant.Along with this I run the Ohio software and will be testing at afv increments along with his performance tune to get the real data needed for everyone. Like I say I'm not here to build a racepipe. The stock pipe itself is a engineering marvel the way it is .All it needs is to pull off the goverment db restrictions on the stock pipe and open it up very slightly. (Message edited by blackflash on October 26, 2009) | ||
| Blackflash |
 This is the results with on a cold startup on a shivery ohio day.This is just the mod itself .I will be working on a gruntier version .But like Ive stated Im not here for performance.Dave in ohio has proven these bikes run excellent the way they are with a performance flash and havent shown better results modded or with a pipe and a tune.Full exhaust different story.Thanks for the pm guys. | ||
| Badlionsfan |
Where u at in Ohio? | ||
| Blackflash |
By the lake near Cleveland. | ||
| Blackflash |
Im looking for a pipe that is stock and has dents cracks rips anything lowcost to perform more tests .I think Im on to something very trick and need a used pipe to confirm the db rating and tone. | ||
| Blackflash |
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| Blackflash |
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| Blackflash |
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| Blackflash |
This is a good pipe cutaway I burned out.This was my first pipe which had a pretty nice tip on it and directed the flow nicely. Reason for chopping this baby.Well let say low end was horrible. | ||
| Heinriech |
In the last picture what is the larger tube? Some sort of cat? So you cut this one up because of the lack of low end torque? So there is a point where there is to much flow? What are the diameters of the header pipes? From the look of the inside of this thing it really has a lot of restriction ... ie back pressure to create that low end torque. Have you ridden a 1125 with an aftermarket slip on? Do these pipes have a lack of low end torque as well compared to stock? Do you know what the piping diameter of the aftermarket slip ons are? I am assuming these aftermarket mufflers are straight through? | ||
| Blackflash |
I just cut it up to show others.It was in my garage collecting dust.I also needed the can opened for my research to document all the inner pipe locations.Well the pipe I was running a straight through design "Jardine" had flat spots.And to buy a tuner to make it right.700 bucks easy for noise.A full system is the only way to go but costs a arm.$1800 The O s b tune is cheaper and the results are almost identical.So all in all your paying more for noise.The stock Performance flash has been proven that the stock pipe is very efficient and the slipons are not worth paying for unless you decide to make noise and pay more for exotic lightwieght pipes. | ||
| D_adams |
Have you ridden a 1125 with an aftermarket slip on? Yep, a Jardine. It was pretty loud and made plenty of power in the upper rpm range. I never had it dyno'd with it on though. Do these pipes have a lack of low end torque as well compared to stock? Not a lot lost, essentially the same on the very bottom, midrange is where they usually lose out. Do you know what the piping diameter of the aftermarket slip ons are? Almost every one uses a 2" midpipe. Bob Thompson used a 2.25" on his custom one, I assume it performs the way he wants and it sounds very good. Not too loud, very nice rumble from what I could tell. I am assuming these aftermarket mufflers are straight through? Yep, every one, including the drummer, if you can see through the muffler, it's "straight through" so to speak. The exception to this is the Torque Hammer and the HPE. They have a setup similar to stock for chambers, just different flow characteristics. Btw, I've been contemplating the flow requirements for the 1125 in cfm. If I got it right, it needs about 1150 cfm at full sing, ie; 10500 rpm. I'm not sure that the two 1.125" ID pipes will allow for this. I'm thinking a venturi effect right after the collector and then opening up to allow maximum flow would be better. Any math whizzes here? The headers should be somewhere around 1.625" ID. At 115 cfm per square inch, it comes out to 1150 cfm at 10500 rpm, unless I'm way off on the calcs. I haven't actually done the math yet (heh, haven't tried this stuff out in 20 years) so I could be wrong. Guess I need to break out the books again and look at my notes for the formulas to calculate this stuff out. That and I need to find all the specs on this bike, bore, stroke, intake and exhaust valve sizes, header length, etc. | ||
| Xnoahx |
Ive seen plenty of bikes with dirty wheels that dont have the exhaust on them. Your work is very interesting though. I wouldnt mind something with a little more growl. I love the look of the stock pipe and I like that it doesnt blow my ears off | ||
| Blackflash |
All that stuff is great if your building a NEW pipe but like I stated. I made mistakes chopping these pipes up thinking more flow more power. As I stated I'm not here to make a racepipe. I believe the stock piece works fine. I am in the works on a great Idea I think you all will like .Keep in contact. The only downside of the pipe is the sheetmetal construction is double ply sheetmetal .010. | ||
| Moosestang |
I agree that all the aftermarket pipes are over priced and to loud. I would love some better tips, like the HPE, not sure how those would look on the stock can though. The tips on the stock can look way to small IMO. (Message edited by moosestang on October 28, 2009) | ||
| D_adams |
I was only musing on the efficiency of the stock pipe outlets. The OD of the headers is 1.75" so I'm guessing on the ID since I haven't actually checked. The ID of the outlets is 1.125" and it seems small. I was only wondering if I knew all the variables, what's the maximum ID for the outlets. I'm just trying to apply a little thought to the stock pipe. Obviously I have something else in the works besides the stock pipe and the only reference to it was the venturi after a collector. As it would be difficult to add a venturi section to the stock pipe without totally destroying it, I figured it was a moot point. Perhaps I shouldn't have mentioned that in reference to the stock pipe and it's design. | ||
| Vosnick52 |
After getting my wheels freshly powdercoated on my 08 r I decided to take care of the soot issue.Now im off to discover tolerable noise. How did the powdercoating of your wheels go? I am looking to get mine done and was curious of how they look. Thanks. | ||
| Blackflash |
The powdercoating was a nightmare .The guy that does mine locally said the stripping was 7 times longer than the normal powdercoating on the stripping side.He asked me if it was some kind of heat powdercoating.He told me the tank that contained the stripper needed heat put on it to help lift the coating.And he said it looked like it took 2 days per coating on wheels or any of the parts.I had the blue.There was 3 coats.The wheel casting look nice but one u strip them you see all the casting marks.Make sure they put plenty of powder on them to fill the porous casting marks.Mine had 3 coats | ||
| Rpm4x4 |
Black flash, can you verify that I have the flow of this muffler correct? I hope my crude diagram makes sense.  | ||
| D_adams |
Yes, the flow chart you made there is correct. Main tube is 2.5" all the way to the back, another one reverses to the mid chamber and then the two exit pipes out. | ||
| Rpm4x4 |
This is what Im thinking after looking at the cutout. I wonder if I cut it open, replaced the 2 smaller outlets with a single 2 1/2 inch outlet. The larger outlet should give it a deeper tone. | ||
| Ccryder |
Keep up the great work this is a really interesting discussion. | ||
| Bicycle_man |
These cutaway views make me feel a little better about the big dEnT that I have just past the "bulb" on the bottom of my pipe. It appears that my dent won't effect the flow. I may have a "donor" pipe for experimentation soon. I had a piece of loose pavement kick up a couple of weeks ago. I heard and felt it, but didn't think much of it until I was washing it yesterday. Bummer. Thanks for these posts. I'm very interested in what you have going. | ||
| Tango2 |
Any updates on the factory exhaust modifications on 1125's. This is an old post now but I just bought a CR. I agree that I don't want to spend $1,000, and deal with packings. I'm a pretty good mig welder/fabricator. I would like to have a used and unwanted factory muffler to experiment on before cutting on mine. | ||
| Terrys1980 |
I have an 1125 exhaust that is in perfect shape available. Only asking shipping costs. |
