Posted by Road Glidin' Don on March 30, 2008, 3:20 pm
>> On Sun, 30 Mar 2008 08:22:15 -0700 (PDT), oasysco
>>
>>>With EFI and an external FI manager, it becomes real simple.
>>>
>> With the newer Harleys they've gone to a closed-loop system. That
>> makes swapping exhausts less finicky, since there are oxygen sensors
>> inside, giving the system feedback to adjust to the change. I like
>> that.
>>
>> For the (older) open-loop system Road Glide, going to free-er flowing
>> exhaust pretty much requires remapping the ECM.
>So if I change the stock mufflers on my '08 FXD I would not need a re-map?
Well, I was being a little bit simplistic for purposes of brevity
there. If you're going to non-stock exhaust, I think you'd be well
advised to get the Stage I upgrade (which involves a re-map). It
really is worth the money spent.
Then, once you have that, the changing between pipes will be less
finicky, due to the oxygen sensors in the exhaust. Of course, that
also means that, if you buy a 'full exhaust' system (as opposed to
slip-ons), you will need to buy the newer kind that has the oxygen
sensors inside. With slip-ons it doesn't matter.
When it comes to Stage I, you should keep in mind that much of the
reason for the bikes coming stock the way they are is due to emissions
and noise standards. So, in terms of air intake for instance, it's
like the motor's trying to breath through a soda straw. Put in the
Stage I and that opens up and you really get the motor's full
potential out of it. Sort of a waste to leave it stock, really.
There's Stage II and Stage III upgrades as well (which are
progressively more expensive), of course, but the biggest and best
bang for your buck (by far) is the Stage I upgrade.
Posted by Calgary on March 30, 2008, 3:13 pm
On Sun, 30 Mar 2008 08:22:15 -0700 (PDT), oasysco
>On Mar 30, 10:11 am, Calgary
>> On Sun, 30 Mar 2008 05:19:18 -0700 (PDT), oasysco
>>
>> >Now, I can switch back 'n forth between loud,
>> >cool sounding pipes and the more economical approach of stock pipes.
>>
>> With no concerns about changes in back pressure or the fuel to air
>> ratio.
>>
>> That is one special bike you have there.
>With EFI and an external FI manager, it becomes real simple.
>Put the stock stock muffler back on and disconnect the PCIII. The bike
>goes completely back to stock and original factory spec. Original
>factory spec on this bike constanly adjusts for a variety of factors
>that affect fuel-to-air ratio. Granted, I'll lose some HP and DB's,
>but I'll pick up MPG and neighbor's thanks (actually nobody's
>complained, but I'm the dark horse in my neighborhood for other
>reasons from dogs to fireworks).
>Put the V&H pipes back on the bike, reconnect the PCIII that has
>already be dyno-tuned just for my bike with those V&H pipes and - bada-
>bing - I'm back to where I am today, hauling axx and giving my son's
>ZX6 a run for the money.
>What have you got on your bikes? Carbs? In that case, yeah, it would
>be a PITA switching back 'n forth.
>But I know you weren't interested in all that, man, and I know why you
>respond the way you do. Geezsch, bud, be cool and realize you don't
>know everything that needs to be known... about anything or anybody.
I didn't know you had a PC on your bike and I am glad to hear you are
not just indiscriminately swapping engine parts on and off for....????
Actually I am not sure why you would want to swap mufflers on a
regular basis but agree that disconnecting the PC does return the bike
back to the original settings.
--
See Ya On The Road
2000 Yamaha Venture Millennium
2004 HD Road King
Posted by Robert Bolton on March 30, 2008, 1:56 pm
...
> Now to digress a little.....
> They had one of those Victory tour machines there. That is one wild
> looking Hollywood bike. A Goldwing too, that had all the features a guy
> could want, including a GPS system with what looked like maybe a 5 inch
> screen. The Goldwing sure looks like the ultimate in touring.
Like you, I've seen the Vision and GW up close and personal. The
Vision is a little too futuristic looking for me. The GW? I'm torn; it
just looks like a really big bike to saddle up as a daily cruiser, but
I admit I wouldn't mind having one in the garage along with a new
Triumph as you mention, a 600cc Burgman for quick jaunts and to give
the ladies of the house their own ride. A dirt bike would be cool, but
I have nowhere to ride around me that's legal even though I'm
surrounded by woods within just a few miles.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
For in town, I think my ideal would be a bike light enough that I don't
even think about handling it. There are limits though, as a bike's got to
be able to do freeway speeds.
The Victory dealer at the show was out of Soldotna, a relatively small
town that swells during tourist season as it's on the Kenai River. He
said they'd sold two or three in the last couple weeks. The styling
appeals to me primarily because it's so outrageous I think. The GWs are
like the Limo of Tour to me. I haven't been around them enough to know
how they function.
Actual trail dirt biking is limited where I am too, but there are a few
routes where an adventure type would be useful. The Denali Highway is
unpaved for about 100 miles, for one, but it is 200 miles away. There are
many unpaved sideroads 100 miles out that a person could explore with a
bike that handles dirt/gravel.
Robert
>>
>>>With EFI and an external FI manager, it becomes real simple.
>>>
>> With the newer Harleys they've gone to a closed-loop system. That
>> makes swapping exhausts less finicky, since there are oxygen sensors
>> inside, giving the system feedback to adjust to the change. I like
>> that.
>>
>> For the (older) open-loop system Road Glide, going to free-er flowing
>> exhaust pretty much requires remapping the ECM.
>So if I change the stock mufflers on my '08 FXD I would not need a re-map?