Quote:
Originally Posted by djb383
How can they possibly be more strict on motorcycles than cages? Cages have had catalytic converters for 30 years. Even today, only a handful of bikes have them.........and yes, when you hammer the throttle doing a dyno run, 2 wheels or 4, they all go open loop and pig rich to protect the engine. However, 99.9999% of the time the engine is NOT at WOT, like it is for a dyno run, they run very lean.
Also, I believe the TRD CAI has the carbon filter. Maybe someone here can confirm.
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My motorcycle has 3 catalytic converters and 02 sensor as well (as do any motorcycles that are closed loop and open loop isn't an option at WOT it is a constant variable in the ECU). You are so very wrong about what you think you know about bikes with regards to catalytic converters. You are also wrong on how a motorcycle engine is tuned on a dyno (by someone that has a clue anyways). When you want to learn some about cycles PM me and i will point you to real world tuner with credentials that are as good as they can possibly get and yo can ask them...
On-Highway Motorcycle Emission Standards for EPA and EU HC (g/km) NOx (g/km) CO (g/km)
1980 EPA Limits 5.0 NA 12.0
2006 - Tier 1 1.4 (HC+NOX) 12.0
2010 - Tier 2 0.8 (HC+NOX) 12.0
Euro II (2004) 1.0 0.3 5.5
Euro III (2007) 0.3 0.15 2.0