Yes motor wise there is a difference , the L2 Busa motor feels like it is , a very torque laden tractable power spread gem of a motor , and feels most like a lightweight racer of the 2 bikes . It makes power all the time , and increases that power predictably the more rpms you use , then comes on cam for the big power rush to redline .
The ZX14R also builds power predictably , but just has more of it as well as torque . The Kawasaki seems to leap forward on any throttle input , and crazy fun in 2nd and 3rd around town , I let it run through 3rd gear and it just ate rpms with effortless ease . It is like a fast revving big block torque monster , and I love its now , even more improved lightweight rolling feel . Going to give it a bit of a test soon , and get those tires all scrubbed in .