Was doing some research for my K24 project, and found something interesting. The Americans claim that the later model TSX's, 2006 on, have a different and superior K24A2 engine as compared to the earlier ones. Read somewhere that the K24A2-RBB4 heads have 1mm bigger inlet valves, cams have 0.9mm higher lift and 12deg more duration. Throttle bodies are supposed to be 4mm larger at 64mm with inlet track increased from 70mm to 80mm, pistons are also a little different in design to allow for the higher lift and duration. Apparently the rods and crank are improved too.
Does anybody know if these differences are in our Aus spec K24A3's as well, in particular the RBB4 heads?
I know my Aus spec K24A3 has a 60mm butterfly in the throttle body, and I have a RBB3 head, what about everyone else?
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