Originally Posted by
starkejt
Perhaps, but these bike engines are getting lighter and weaker in a lot of areas as they get further optimized for bikes that makes them unsuitable for cars. Gears are getting narrower and narrower, cases are getting thinner, etc. Just because an S1000RR makes more power on the dyno than an 07 GSXR doesn't mean I want to run and stick one in the car. I more worried about running out of good, unopened 07-08 GSXRs than someone getting a 2011 Kawasaki or other engine to make a bunch more power for a race distance in a car, where they are subject to greater loads and much longer periods of full throttle.