RedRider
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« Reply #90 on: April 29, 2012, 10:34:31 AM » |
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I just got back from a ride after doing the mid on my termi fb killers and the sound and ride seems absolutely perfect. Just taking out the cylinder made a nice difference.
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Slim1899
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« Reply #91 on: April 29, 2012, 01:16:19 PM » |
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I just got back from a ride after doing the mid on my termi fb killers and the sound and ride seems absolutely perfect. Just taking out the cylinder made a nice difference.
Thanks for the info, the CW insert is designed a little differently. It is all one welded piece. I would have to drill/cut to make any changes to it. I am thinking of slicing the end off leaving the neck in place but getting rid of the flange on the end. 
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RedRider
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« Reply #92 on: April 29, 2012, 01:53:04 PM » |
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You could cut off the end and see how it sounds. If you need more noise just cut it again, closer to the end where it attaches to the can. Using a hacksaw was an effective and efficient way for me.
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Fireman1291
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« Reply #93 on: May 02, 2012, 07:21:23 AM » |
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I haven't modded the silencer yet. And I'll tell you why.....
I lost one of the silencer screws that hold it in. I tightened the hell out of it but still lost one. Well, I came home from a ride one day and found that the endcap had blown a rivet. I called CW and it seems that because the screw that fell out is also used to secure the endcap that the rivets had to pull double time to keep the endcap in place which was now under more pressure as a result of the exhaust gasses hitting the insert.
They are having me mail in the exhaust for repair. In the meantime they mailed me a replacement screw but since then I blew out another rivet. So get some red loctite and secure those screws after you do the mod. I haven't mailed it out yet but when I do and it comes back repaired I'm going to drill holes all over the tube. I'll keep that metal strap at the end because thats what gives it that nice rumble tone and added backpressure.
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« Last Edit: May 02, 2012, 07:25:18 AM by Fireman1291 »
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Slim1899
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« Reply #94 on: May 02, 2012, 09:35:21 AM » |
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I haven't modded the silencer yet. And I'll tell you why.....
I lost one of the silencer screws that hold it in. I tightened the hell out of it but still lost one. Well, I came home from a ride one day and found that the endcap had blown a rivet. I called CW and it seems that because the screw that fell out is also used to secure the endcap that the rivets had to pull double time to keep the endcap in place which was now under more pressure as a result of the exhaust gasses hitting the insert.
They are having me mail in the exhaust for repair. In the meantime they mailed me a replacement screw but since then I blew out another rivet. So get some red loctite and secure those screws after you do the mod. I haven't mailed it out yet but when I do and it comes back repaired I'm going to drill holes all over the tube. I'll keep that metal strap at the end because thats what gives it that nice rumble tone and added backpressure.
I'm sorry you had that happen Brother, glad they are taking care of the issue for you. I'm off today so maybe I'll work on drilling holes today after the gym!
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Slim1899
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« Reply #95 on: May 02, 2012, 11:02:41 AM » |
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Fireman, I'm glad you mentioned the backstrap as I'd originally thought to just cut off the end. That would not have worked. I took a slightly different route than drilling holes as I wanted to just expand on the design CW had created. I effectively doubled the flow of the insert and it sounds magnificent. It regained some of the growl while still maintaining the tuned sound...not just a continuous roar as it is without any insert. This is what I did: Before  After  I used a dremel with a metal cutting disk then ground down the edges. It sounds amazing, a wonderfully happy medium between no insert and the unmodified insert. and thanks for the heads-up about the screws coming loose. When I took mine off one of the screws was very loose, the two others were still just as tight as when I had installed it. I only had Blue Loctite so I'm hoping that will be enough. 
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« Last Edit: May 02, 2012, 11:04:42 AM by Slim1899 »
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Slim1899
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« Reply #96 on: May 02, 2012, 03:57:59 PM » |
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Just a couple observations after a quick 60 mile ride in the foothills....the CW Insert unmodified is WAY TOO RESTRICTIVE...I didn't even notice how much power I loss with it in there until I modified the insert. It was a huge difference in throttle response and acceleration. It sounds much better now too...I am getting a little bit of popping on decel now but I like it 
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« Reply #97 on: May 03, 2012, 07:59:55 PM » |
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i was thinking of doing this on my sc project baffles 
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« Reply #98 on: May 05, 2012, 04:04:29 AM » |
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I haven't sent my exhaust out for repair yet....but I'm heading to the garage for that mod now. Dremel.....here we go! 
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Slim1899
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« Reply #99 on: May 05, 2012, 12:52:20 PM » |
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I haven't sent my exhaust out for repair yet....but I'm heading to the garage for that mod now. Dremel.....here we go!  Awesome! How'd yours turn out?
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Fireman1291
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« Reply #100 on: May 07, 2012, 02:42:26 AM » |
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Turned out great. I did what you did but offset the length on each side. I went down .5" on one side and a little over a 1" on the other. It sounds great! 
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Slim1899
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« Reply #101 on: May 07, 2012, 04:17:30 PM » |
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I was so happy with the sound improvement I actually took it back out this morning and made the holes even longer.  . I think I finally got it where I want it now...pretty darn loud but not "no insert painful loud" 
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Slim1899
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« Reply #102 on: May 12, 2012, 01:22:40 PM » |
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 Like I said, went back in and made another cut. The sound is fantastic now and much less restrictive. Oh...and DO NOT USE RED LOCTITE on the exhaust screws. I used Blue and I was afraid the heads were gonna snap off before I got them back out.
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« Reply #103 on: May 12, 2012, 02:54:55 PM » |
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the main factor for the sound deadening in any case is that it doesnt get a straight shot to the exit
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11' M796, SC project GP slip-ons, 1100DS cams, BMC air filter with modified airbox cover, asv levers, 14t front sprocket
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Slim1899
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« Reply #104 on: May 12, 2012, 03:51:39 PM » |
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the main factor for the sound deadening in any case is that it doesnt get a straight shot to the exit
Good to know, I did notice an increase in sound tho as I made the hole bigger, at least it felt that way 
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