TWC vs TWC w/AIR
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From: In my house..
TWC vs TWC w/AIR
TWC stands for 3-way converter, AIR stands for Air Injection Reactor.
What i have learned is that the TWC is designed for an engine that runs on the rich side while the TWC w/AIR is designed to function best on a lean-burn engine.
I have to replace one or both of the cat's because there is serious restriction in the exhaust, i am concerned about emissions and want to do my part so i intended to replace the 2 separate cat's with a single TWC w/AIR.
The problem is the engine will not remain in a lean-burn state of mind for much longer, investing in a TWEECER to remap the fuel and ignition curves.
When i do this perhaps a standard TWC converter would be best to use as it is designed for a richer mixture.
I will be shooting for between 14:1 to 13.5:1 once it is re-calibrated, 14.7:1 is stoichiometric and 12.5:1 is max power, 14.7 minus 12.5 is 2.2, add that to 14.7 and we get 16.9:1, it scares me to think my mixtures are going that lean during operation but it would not surprise me just the same ...
do you think i am going rich enough to warrant the standard 3-way converter w/o AIR ?
What i have learned is that the TWC is designed for an engine that runs on the rich side while the TWC w/AIR is designed to function best on a lean-burn engine.
I have to replace one or both of the cat's because there is serious restriction in the exhaust, i am concerned about emissions and want to do my part so i intended to replace the 2 separate cat's with a single TWC w/AIR.
The problem is the engine will not remain in a lean-burn state of mind for much longer, investing in a TWEECER to remap the fuel and ignition curves.
When i do this perhaps a standard TWC converter would be best to use as it is designed for a richer mixture.
I will be shooting for between 14:1 to 13.5:1 once it is re-calibrated, 14.7:1 is stoichiometric and 12.5:1 is max power, 14.7 minus 12.5 is 2.2, add that to 14.7 and we get 16.9:1, it scares me to think my mixtures are going that lean during operation but it would not surprise me just the same ...
do you think i am going rich enough to warrant the standard 3-way converter w/o AIR ?
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