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Georgehitch17
| | Posted on Tuesday, November 23, 2010 - 10:23 am: | 
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thats dumb aftermarket exhaust would cost over 2 grand |
Hybridmomentspass
| | Posted on Tuesday, November 23, 2010 - 10:34 am: |
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i hate the way that Edda Designs bike looks, doesnt look good at all to me
But that is just my opinion |
Zacks
| | Posted on Tuesday, November 23, 2010 - 11:30 am: |
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George, so you're saying the OEM's should design for ease/cost of the aftermarket rather than resolving their internal cost/performance/packaging design targets?
My concerns would be how they resolved the metal fatigue in that accordian section and what an OEM replacement would cost or how easy it would be to replace should it fail.
OTOH, Honda (for instance) has been know to file a bunch of patents whether they had any plans for production at the moment simply to keep other manufacturers from developing similar technology. Or maybe just a way to get the competition to spend R&D money to see why Honda thought an idea was worth patenting. |
Georgehitch17
| | Posted on Tuesday, November 23, 2010 - 02:20 pm: |
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Zacks- What I'm saying is with strict epa regulations why would you build a exhaust into a major component of the bike. I'm willing to bet 50% of the 1125's will have aftermarket exhausts at some point during their life, do to increased power and noise which isn't available from the factory because of the EPA. So why increase the cost of replacement on a part that almost everyone replaces. |
Sportster_mann
| | Posted on Tuesday, November 23, 2010 - 02:58 pm: |
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Georgehitch17 said
quote:Zacks- What I'm saying is with strict epa regulations why would you build a exhaust into a major component of the bike. I'm willing to bet 50% of the 1125's will have aftermarket exhausts at some point during their life, do to increased power and noise which isn't available from the factory because of the EPA. So why increase the cost of replacement on a part that almost everyone replaces.
Perhaps that's the idea - make it too difficult to change the exhaust - to keep the EPA happy ... |
Zacks
| | Posted on Tuesday, November 23, 2010 - 03:05 pm: |
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I'll concede there's a vibrant aftermarket out there and some really clever solutions or options available for just about anything you want to change.
Allow me to point out that changing an OEM exhaust for something else is technically illegal for any vehicle being operated on a public road unless the replacement has been EPA certified on that vehicle.
Now, so far, we have been given a pass because 1. it's difficult for the uninitiated to know all the 'proper' exhausts for bikes by sight and 2. we represent a small segment of potential revenue (i.e. fines). But, with municipalities looking for increasing income, it's going to start happening more. So, I'll dispute how many bikes will end up with aftermarket exhausts and if it's even a consideration during the design and development stages.
It's EXACTLY because of the EPA regulations that something like this would get developed. If it's coming to the point that changing an exhaust can be effectively enforced, then should - from an engineering standpoint - an advantage be realized, why not this design? Perhaps because of the new exit points, sound level could actually be increased. Maybe there's more exhaust volume available making it freer flowing. Maybe the effective length allows for better intake tuning?
I'm just saying that I doubt there's ever a discussion within an engineering meeting where someone pipes up and says that we really need to do it this way because we're hamstrung and everyone's going to change it anyway.
Which brings up the 'noid right? Exactly. It's commonly removed. BUT! it solves a particular problem at a specific rpm during the EPA certification testing. Engineers will always try to figure out a way around a problem. Rarely will you get a 'this is close enough, someone else can figure it out' solution. They just don't have that mindset.
All right, that's probably going to open the stator door, but I'm positive the engineers have a solution that the money guys don't/didn't like for that. |
Aj2010
| | Posted on Tuesday, November 23, 2010 - 03:29 pm: |
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Maybe that flexible section of the exhaust is high temperature silicone. Although I'm thinking that even that wouldn't last very long. Best to have the exhaust enter through the (enlarged) swing-arm pivot, the initial baffles can be in the pivot bolt (and drilling it full of holes would make it lighter LOL). They can then "add" replacing muffler bearings to the regular maintenance schedule ...... YEAH for muffler bearings ..... and it's about time! |
Zacks
| | Posted on Tuesday, November 23, 2010 - 07:48 pm: |
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I've seen short sections of hi-temp silicone on some car exhausts, but they're waaayyy downstream compared to a bike. You're right, have a hard time seeing that last too long. What would you use to lubricate the
'muffler bearings'?
Like I said before, it's an interesting concept that brings a couple of questions to mind immediately and I'd be interested in the solutions. |
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