Carey Senior Heliman Location: Allentown, NJ U.S.
| I have flown both, and am an intermediate pilot (funnels, tic tocs, inverted stuffs). Rappy 50 v2 with kasama, gy611, hatori, at 2100 idle 2, is not that far off from a stock sport.
I would rate it at about 10 percent gain in performance. Once again I am intermediate at best, so take it for what you will. Experts will probably find the difference to be larger.
The problem is, a Kasama head is half the price of the entire 600 sport kit. The weight problem is not worth throwing money at, better off just getting a sport kit when/if you have a serious crash. |