Originally Posted by
T4eg
no the bottom end is fine, its all in the cams.. switching the rockers and cams out along with kpro will net results close to k20a2 motor. The cranks are same stroke but alittle weaker than the k20a2
The cam's and rockers, yes obviously, and if you switch out the parts, you will see similar numbers to that of the a2. I assumed he was asking why Honda limited the rpms on the a3. The bottom end is not fine and it's not because the a2's crank is physically stronger, it's a balancing and lubrication issue at high rpm's between the two motors. That is why Honda did it that way.