Been looking at the v11, never knew much about it, so i started comparing parts numbers to older rb engines..looks very similar to the old c6 series...same crankshaft, bearings, carb, sleeve is 5+2 bypass just like the c6, bore is 16.22 and stroke 16.80 just like the c6, crank is 14mm biturbo just like the c6. Im comparing it to the c6 cause that has got to be my favorite buggy engine of all time. Tons and tons of power down low, gets to top rpm fast, and is plenty fast for the straights. Seeing as the c6 hasbt been made for quite some time and i need a new engine, the v11 seems like a great deal.