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Buell Forum » XBoard » Buell XBoard Archives » Are Catalytic Converters in Buell's (near) Future? « Previous Next »

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Whodom
Posted on Wednesday, March 29, 2006 - 11:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Buell has made much of the fact (and justifiably so) that the XB's meet all current exhaust emission standards without the use of a catalytic converter.

OTOH we've recently seen how much the performance of these bikes can be improved by re-tuning the ECM to richen the fuel mixture across the range.

I'm wondering if the addition of a catalytic converter to the design would allow the engines to put out more power by keeping the exhaust emissions within limits while allowing a richer fuel mixture. This also seems like it could be the answer to the complaints raised by Uly riders about pinging and low speed tractability.

Thoughts?
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Jkhawaii
Posted on Wednesday, March 29, 2006 - 11:34 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

converters need the air fuel ratio to be close to 14.7-1
to rich to long and you burn up the cat and or get that rotten egg smell
I suspect the Xb's have a fixed timing map that dose not change with temperature
I would think the fix for pinging would be (other than running cooler) temperature variable timing maps and a knock sensor
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