2010 SuperTrapp SE Slip-On Mufflers
in [Harley-Davidson]
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From: Arie Bresser on 12 Nov 2009 20:31 "TL Mitchell" wrote... > > My take is the cat takes care fo the emissions so the A/F > ratios don't have to be ridiculously lean. YMMV. OOPS!!
From: nobody #1 on 12 Nov 2009 21:06 TL Mitchell wrote: > "c" <smalltalkingchicken(a)gmail.com> wrote > >>>> what do you think is really going on? > you think the moco let their bikes be neutered by the EPA, or do you > think they designed around the upcoming EPA req's and made a bike that > sounds/performs like it should, regardless of the EPA req's?<<< > >>>> i don't know for sure, but i DO know they want to sell you more >>>> parts...<<< > > I don't have detailed comparisons of '09 vs '10 but I'm firmly convinced the > cat allowed 'em to do the A/F ratios the way they should be. My '10 bone > stock with slipons performs comparably to the modded '07...... true duals, > slipons, SE breather, ThunderMax ECM tweaked to perfection. I get what feels > like comparable performance and throttle response, better gas mileage and > the plugs look the way they should after 3000 miles where the plugs on the > '07 were chalk-white after 1k and it ran hotter than hell. This bike runs > better and cooler. My take is the cat takes care fo the emissions so the A/F > ratios don't have to be ridiculously lean. YMMV. > > 112 > > Too rich and converters burn up and the exhaust smells like rotten eggs. Too lean and the converter won't hardly work at all. The o-2 sensors are there to keep the a/f ratio at a converter friendly 14.7 to 1. The computer can only correct the a/f ratio in a fairly narrow range, do any mods that put it at near the limit of it's ability to correct the a/f ratio and it should kick on the check engine light. That's the way it works on cars and I can't think of any reason that the engine controls on the new Harleys would be any different. nobody #1 just what i know about electronic engine control systems but i'm on a need to know basis, daily
From: nobody #1 on 12 Nov 2009 21:07 TL Mitchell wrote: > "c" <smalltalkingchicken(a)gmail.com> wrote > >>>> what do you think is really going on? > you think the moco let their bikes be neutered by the EPA, or do you > think they designed around the upcoming EPA req's and made a bike that > sounds/performs like it should, regardless of the EPA req's?<<< > >>>> i don't know for sure, but i DO know they want to sell you more >>>> parts...<<< > > I don't have detailed comparisons of '09 vs '10 but I'm firmly convinced the > cat allowed 'em to do the A/F ratios the way they should be. My '10 bone > stock with slipons performs comparably to the modded '07...... true duals, > slipons, SE breather, ThunderMax ECM tweaked to perfection. I get what feels > like comparable performance and throttle response, better gas mileage and > the plugs look the way they should after 3000 miles where the plugs on the > '07 were chalk-white after 1k and it ran hotter than hell. This bike runs > better and cooler. My take is the cat takes care fo the emissions so the A/F > ratios don't have to be ridiculously lean. YMMV. > > 112 > > hey, how'd that compensator work out? nobody #1
From: Road Glidin' Don on 12 Nov 2009 22:11 On Nov 12, 6:15 am, Greasy Rider <greasyri...(a)gmail.com> wrote: > c wrote: > > How can I get that sound? > > I've been hearing metric riders say almost the same thing for years. > > Greasy Best answer so far, Greasy!
From: dp on 13 Nov 2009 00:15
TL (at work) wrote: > "nobody #1" <rnddmauck(a)comcast.net> wrote > >> hey, how'd that compensator work out? > > Fired it up at the dealer and the same noise was still there. Decided to > just ride it. Daytona and back the tap::::tap::::tapping in there became > more pronounced. > My Mikuni flat slide carb sounds like that. I swear I thought it was lifter noise but I've pulled over and adjusted the pushrods nearly a dozen times and still there's that tap tap tap... I've changed the lifters twice. I'm still going to go for a ride some day with the air cleaner off so I can poke my finger in my Harley's pie hole and see if I can stop that tapping noise by pushing on the slide. I bet it goes way. Then and only then will I be able to sleep at night. It's not easy owning a Mikuni. We probably need a support group on the web. dp |