o2 sensers 2006 dyna
Tourer
Joined: Dec 2005
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RE: o2 sensers 2006 dyna
I just wonder if anyone is aware of the intended enforcement of the Current EPA laws. Any Modification that effects a bikes emmisions, ( Intake, Displacement, Exhaust, Tranny, and/or Tire size ) on any bike produced from 1979 on could result in a fine of up to $10,000 per day of use on public roads. I personally hope the rules get relaxed. I trully feel enforcement will ruin the aftermarket. Please contact your congressman or congress women, the MRF, and your local and state ABATE. Some independent and possibly some Factory Dealerships are refusing to work on Modified Bikes for that reason. Check it out, for your wallets sake.
Road Master
Joined: Oct 2005
Posts: 1,034
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RE: o2 sensers 2006 dyna
ORIGINAL: haksaw
ok, i read it. My question remains, why would it be MORE lean without putting more air in? I realize it may be lean to begin with.
ok, i read it. My question remains, why would it be MORE lean without putting more air in? I realize it may be lean to begin with.
6th Gear
Joined: Jan 2006
Posts: 14
Likes: 0
RE: o2 sensers 2006 dyna
on the '06 models the exhaust contain catalytic converters - so hacking away to remove baffles could be interesting.
Does anyone know what the '06 catalytic SE slipons sound compared to the SEII's?
Does anyone know what the '06 catalytic SE slipons sound compared to the SEII's?
Cruiser
Joined: Dec 2005
Posts: 242
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RE: o2 sensers 2006 dyna
ORIGINAL: dynamolowrider
thanks for the info now i get it! would it hurt to install the down load first . and I know that removing the baffels is not the best for pefomance but with the down load would that be suficant for now. thanks TCSTD i thought the down load would be more exspencive
thanks for the info now i get it! would it hurt to install the down load first . and I know that removing the baffels is not the best for pefomance but with the down load would that be suficant for now. thanks TCSTD i thought the down load would be more exspencive
Cruiser
Joined: Dec 2005
Posts: 242
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RE: o2 sensers 2006 dyna
ORIGINAL: JamieWG
It's a two way street - air flow is limited by intake and exhaust. Everyone assumes the stock airbox is flowing max airflow with the stock mufflers, but that's not necessarily true. If the backpressure from the exhaust is the limiting factor, and you remove it, suddenly the stock airbox is flowing more air and you are lean. Some people claim to be fine by adding modifying the exhaust without changing the EFI (some HD shops even say it's ok)... from what I've seen, it's a 50-50 chance. I put slip-ons on my Dyna and noticed right away that it was running lean. Idled fine and seemed ok in the upper RPMs, but midrange was lean.
ORIGINAL: haksaw
ok, i read it. My question remains, why would it be MORE lean without putting more air in? I realize it may be lean to begin with.
ok, i read it. My question remains, why would it be MORE lean without putting more air in? I realize it may be lean to begin with.
Advanced
Joined: Nov 2005
Posts: 91
Likes: 0
From: Southern, Md
RE: o2 sensers 2006 dyna
ok let me see if i can explain, 06's having all the sensor it has will read from these first before and while running ok, now if you keep the stock air cleaner on, the same air will flow with the already lean settings, now if you open the exhaust for a free flow and of course that great harley sound, the already lean system will try to compensate but just will not be able to. not knocking nobodys intelligence but if you read what all the different sensor do you will understand it a lot better, it's very confusing. all these come into play while running, due to the faster escape of the exhaust the o2's will basically give a false reading which will change the ecm's capability to correct the the already lean condition because of back pressure and temperature of the exhaust. hey remember i don't know everything thing but i try, i have worked and studied these things my whole mechanical life. and i can be wrong to. so im out here with you guys and gals to make my 06 dyna or what ever run better.
Road Captain
Joined: Jun 2005
Posts: 685
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From: Sandy, Oregon
RE: o2 sensers 2006 dyna
on the '06 models the exhaust contain catalytic converters
Advanced
Joined: Nov 2005
Posts: 91
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From: Southern, Md
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Tourer
Joined: Jan 2006
Posts: 340
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From:
RE: o2 sensers 2006 dyna
this has been a interresting thred iunder stand efi prety well and what all the seners do tps,map, 02, all corlate together to send the proper signals to ecm to make the motor run right but i didnt think about freeing up the the exhaust would change the temp inside the thus throwing the calebration of the o2 sen. off so what it comes down to is the only real soul. is a sret or power comander i gess ill save my money till i can do it right!
Road Master
Joined: Oct 2005
Posts: 754
Likes: 1
From:
RE: o2 sensers 2006 dyna
ORIGINAL: JamieWG
It's a two way street - air flow is limited by intake and exhaust. Everyone assumes the stock airbox is flowing max airflow with the stock mufflers, but that's not necessarily true. If the backpressure from the exhaust is the limiting factor, and you remove it, suddenly the stock airbox is flowing more air and you are lean. Some people claim to be fine by adding modifying the exhaust without changing the EFI (some HD shops even say it's ok)... from what I've seen, it's a 50-50 chance. I put slip-ons on my Dyna and noticed right away that it was running lean. Idled fine and seemed ok in the upper RPMs, but midrange was lean.
ORIGINAL: haksaw
ok, i read it. My question remains, why would it be MORE lean without putting more air in? I realize it may be lean to begin with.
ok, i read it. My question remains, why would it be MORE lean without putting more air in? I realize it may be lean to begin with.