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pulling my stock exhaust can off - udder only system
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Topic: pulling my stock exhaust can off - udder only system (Read 3740 times)
PanDuc
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'06 S2R800, '70 cb450 Cafe Project, 64 Harley FL
pulling my stock exhaust can off - udder only system
«
on:
June 22, 2008, 07:22:13 PM »
I have pulled my stock exhaust cans off and i am just running a udder only exhaust system. i have been told that the udder provides enough back pressure that i would not damage my motor. Am i safe or should i put the rest of the system back on?
I removed the rest of the sytem for a better sound - but if i destroy my motor it will not be worth it.
What are your thoughts??
thanks
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herm
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Ducati Monster Forum
Re: pulling my stock exhaust can off - udder only system
«
Reply #1 on:
June 23, 2008, 06:52:56 AM »
i ran my s2r1000 with only the udder from 600 miles to 5500 miles.
no issues.
of course, YRMV
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c_rex
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Quick! Into the transmogrifier!
Re: pulling my stock exhaust can off - udder only system
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Reply #2 on:
June 24, 2008, 10:08:36 AM »
+1 safe
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A.B
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Re: pulling my stock exhaust can off - udder only system
«
Reply #3 on:
June 24, 2008, 10:35:51 AM »
rode sans cans for the better part of 6000 miles without incident. well, at least without exhaust related incident, I did highside about 3-4k miles ago.
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PanDuc
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Posts: 59
'06 S2R800, '70 cb450 Cafe Project, 64 Harley FL
Re: pulling my stock exhaust can off - udder only system
«
Reply #4 on:
June 24, 2008, 07:27:24 PM »
OK lets take it one step further... How do they make up the back pressure in the MOTO CREATIONS Boom tubes?
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ducatiz
No trellis. no desmo. = Not Ducati.
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Re: pulling my stock exhaust can off - udder only system
«
Reply #5 on:
June 25, 2008, 06:35:19 AM »
Quote from: PanDuc on June 24, 2008, 07:27:24 PM
OK lets take it one step further... How do they make up the back pressure in the MOTO CREATIONS Boom tubes?
retune the bike.
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ducatiz
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Re: pulling my stock exhaust can off - udder only system
«
Reply #6 on:
June 25, 2008, 06:36:46 AM »
RE: running with udder only
you will be much happier if you put on a couple of slash tip nubs on the udder to direct the gas back.
the noise is pretty intense and the udder directs it almost straight up.
someone on TOB cut their S pipes to make some small slash tips and direct the gas back, looks more finished too.
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san zanobi
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Re: pulling my stock exhaust can off - udder only system
«
Reply #7 on:
June 26, 2008, 06:09:47 AM »
Would the same ruling apply to my '03 620? I've been wanting to remove my cans for a while now.
Any idea what the diameter is on those pipes?
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ducatiz
No trellis. no desmo. = Not Ducati.
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Re: pulling my stock exhaust can off - udder only system
«
Reply #8 on:
June 26, 2008, 06:20:59 AM »
Quote from: san zanobi on June 26, 2008, 06:09:47 AM
Would the same ruling apply to my '03 620? I've been wanting to remove my cans for a while now.
Any idea what the diameter is on those pipes?
620 does not have an udder, just the header and a collector. probably should have something. the SSS bikes' exhausts are totally different.
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"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the air—these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.
CDawg
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S4RS
Re: pulling my stock exhaust can off - udder only system
«
Reply #9 on:
June 26, 2008, 07:31:44 AM »
You should be fine. Regarding adjustments to "making up the back pressure" the stock system is a closed loop. As long as (1) the change is small and (2) the udder doesn't let outside air into the system, then (dreaded) O2 sensor provides feedback to the stock ECU to adjust the A/F mixture so that it will be tuned to the OEM state (slight lean-ness, but not harmful lean)
If you want to be sure, ride it udder-only for a bit and then pull the plugs to check.
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CDawg
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Re: pulling my stock exhaust can off - udder only system
«
Reply #10 on:
June 26, 2008, 07:32:40 AM »
Oh, I did the udder only thing for ~40 miles and my ears hurt (even with ear plugs) because it was so loud.
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ducatiz
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Re: pulling my stock exhaust can off - udder only system
«
Reply #11 on:
June 26, 2008, 07:40:03 AM »
Quote from: CDawg on June 26, 2008, 07:32:40 AM
Oh, I did the udder only thing for ~40 miles and my ears hurt (even with ear plugs) because it was so loud.
put some slash-tips to direct the noise down and back and it helps a lot
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"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the air—these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.
CDawg
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Posts: 1468
S4RS
Re: pulling my stock exhaust can off - udder only system
«
Reply #12 on:
June 26, 2008, 07:46:46 AM »
Quote from: ducatizzzz on June 26, 2008, 07:40:03 AM
put some slash-tips to direct the noise down and back and it helps a lot
It was just enroute to the dealer to be swapped into ExBox.
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PanDuc
Jr. Member
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Posts: 59
'06 S2R800, '70 cb450 Cafe Project, 64 Harley FL
Re: pulling my stock exhaust can off - udder only system
«
Reply #13 on:
June 26, 2008, 10:52:34 AM »
Quote from: CDawg on June 26, 2008, 07:46:46 AM
It was just enroute to the dealer to be swapped into ExBox.
Thats what i am talking about!! how much did you spend on the Exbox?
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PanDuc
Jr. Member
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Posts: 59
'06 S2R800, '70 cb450 Cafe Project, 64 Harley FL
Re: pulling my stock exhaust can off - udder only system
«
Reply #14 on:
June 26, 2008, 10:54:02 AM »
Quote from: ducatizzzz on June 26, 2008, 07:40:03 AM
put some slash-tips to direct the noise down and back and it helps a lot
I just picked up a stock exhaust system off of Craigslist and i am planning onchopping the "S" tubes.
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