Right, I am sorry it came out kinda wrong each of mazda's chambers is 654cc making it a 1308cc when having two chambers. However this is only counting two stroke's when all regular engines are calculated using a 4-stroke method. All I am saying is that this Renesis engine is breathing just as much as your 2.5 L. When you say its a 1.3 then you are saying it breaths like a prius engine which is clearly not the case. If thats the way you want to think about it the go right ahead!!! Just doesn't seem locical to me!!!
