30-09-2015, 01:06 PM
The cams are not the only difference.
R uses larger inlet valves with smaller exhaust valves.
RS uses thinner valve stems for better high RPM valve speed with double springs.
Better porting in the RS head.
RS uses sequential injection and ignition where the R doesn't.
Unless you plan on using a different ECU then the benefit is virtually 0 btw.
R uses larger inlet valves with smaller exhaust valves.
RS uses thinner valve stems for better high RPM valve speed with double springs.
Better porting in the RS head.
RS uses sequential injection and ignition where the R doesn't.
Unless you plan on using a different ECU then the benefit is virtually 0 btw.