roadventure
GT Reference
What, if any, effect does adding any of the popular aftermarket mufflers (MISTRAL, AGOSTINI. etc.) have on the air/fuel ratio of the California 1400?
My thinking has always been "nil". Here is my reasoning. The air/fuel ratio is created at the inlet side of the engine. The injectors supply fuel based on the volume of incoming air. A 13:1 air to fuel ratio is what I have always read as being "ideal". I know a lot of other factors enter into the picture, but I am looking at this in a simplified way.
So, IF the air/fuel ratio is created at the inlet side of the engine then the ease at which the burnt gases exit the combustion chamber have no effect on this ration.
Given this, then the amount of back pressure that any muffler may provide does not change the air /fuel ratio.
Okay, those of you with greater knowledge, please agree, or tell me where my thinking is wrong.
My thinking has always been "nil". Here is my reasoning. The air/fuel ratio is created at the inlet side of the engine. The injectors supply fuel based on the volume of incoming air. A 13:1 air to fuel ratio is what I have always read as being "ideal". I know a lot of other factors enter into the picture, but I am looking at this in a simplified way.
So, IF the air/fuel ratio is created at the inlet side of the engine then the ease at which the burnt gases exit the combustion chamber have no effect on this ration.
Given this, then the amount of back pressure that any muffler may provide does not change the air /fuel ratio.
Okay, those of you with greater knowledge, please agree, or tell me where my thinking is wrong.