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Author Topic: Exhaust  (Read 2581 times)
Dag
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« on: October 03, 2009, 06:09:33 PM »

I have seen a lot of questions about exhaust systems for the Valkyrie.
I have made a survey to collect as much facts as possible.

Please share your opinions and experiences.

"Click here to take the Online Survey"
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The question is not what you look at...but what you see...
fudgie
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« Reply #1 on: October 03, 2009, 06:19:31 PM »

Taken!  cooldude
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Livin' the Valk, er, F6B life in Central Florida.

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« Reply #2 on: October 03, 2009, 06:26:04 PM »

Took it using the wife's Valk with Cobra 6x6 exhaust.
Hard to answer correctly when you have fabbed your own like I did on my Valk.  cooldude

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'13 F6B black-the real new Valkyrie Tourer
'13 F6B red for Kim
'97 Valkyrie Tourer r&w, OLDFRT's ride now!
'98 Valkyrie Tourer burgundy & cream traded for Kim's F6B
'05 SS 750 traded for Kim's F6B
'99 Valkyrie black & silver Tourer, traded in on my F6B
'05 Triumph R3 gone but not forgotten!
Momz
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« Reply #3 on: October 04, 2009, 03:14:28 PM »

Dag, I took the survey and posted about my I/S.
But I also have a standard with Cobra 6 into 6's.
Seems you can only survey one bike only.
« Last Edit: October 05, 2009, 09:54:19 AM by Momz » Logged


ALWAYS QUESTION AUTHORITY! 

97 Valk bobber, 98 Valk Rat Rod, 2K SuperValk, plus several other classic bikes
Dag
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« Reply #4 on: October 04, 2009, 03:46:46 PM »

Try now, I think it should work now.

Wow, 107 surveys... I'm looking forward to take a look at the statistics.
It will take a few days to put all this information in system.
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roboto65
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« Reply #5 on: October 04, 2009, 03:50:27 PM »

Taken but Stock
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Allen Rugg                                                       
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« Reply #6 on: October 05, 2009, 07:41:02 AM »

Love the sound and look of my Corba 6x6 with the baffles in, mellow when not revving high but sounds great when you rip into it.
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Black Sled
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« Reply #7 on: October 05, 2009, 12:13:07 PM »

Took it using the wife's Valk with Cobra 6x6 exhaust.
Hard to answer correctly when you have fabbed your own like I did on my Valk.  cooldude

Topic Travlr - I'd be really interested in your comparison of the 2 systems - particularly the sound.  Do the Cobra's sound better?  I have  yet to hear a modified stock or a glass pack system first hand.  I have the Cobra's.

thanks much!
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Black 2000 Valk Tourer (my black sled)
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Livin' the Valk, er, F6B life in Central Florida.

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« Reply #8 on: October 05, 2009, 06:08:14 PM »

Well, just my opinion but I think the baffled Cobra system sounds absolutely mean. Evil It sounds like a hot-rod small block V-8. I love whacking the throttle when I ride Kim's bike! It is a little loud for my taste while highway cruising but Kim loves it & it's her bike.  Lips Sealed
My glasspack job doesn't have the V-8 rumble that the Cobras do, more of a V-12 Ferarri-like higher pitch sound. Some folks tell me it sounds like a P-51 Mustang warbird as it rolls by under open throttle. I used short body {16"} glasspacks that dumped into the slash cut tips.



I found that on long trips the GPs were "droning" too much for my liking. I figured it was because they were resonating inside the 4" tips. So I made some 2" extentions that I put some car tips on to move the sound out of the 4" tips. Also added just a touch more backpressure which I thought it needed. Worked out great.



No dyno confirmation but my "butt-dyno" says the glasspacks added a bit more mid to upper range HP over the stock system with no loss of low end grunt. Same butt-dyno says the Cobras hurt the mid range noticeably & make the well known Valk flat spot worse.
One day if I ever have to re-do my GP set up or do another Valk I would like to try some longer bodied glasspacks to see how it works. I suspect it would be better, deeper tone, less drone & maybe even better low end torque.  Wink 
Overall the GPs are quieter than the baffled Cobras.

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'13 F6B black-the real new Valkyrie Tourer
'13 F6B red for Kim
'97 Valkyrie Tourer r&w, OLDFRT's ride now!
'98 Valkyrie Tourer burgundy & cream traded for Kim's F6B
'05 SS 750 traded for Kim's F6B
'99 Valkyrie black & silver Tourer, traded in on my F6B
'05 Triumph R3 gone but not forgotten!
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