Originally posted by Spyderxl98z24
before integra nem says WHY are cams a factor well cams actually determine your powerband. If you rev it to iunno 8k and then if you rev it to 9k youll see a drop in power due to the cam the cam grind is specific in RPM. if your engine is turning at 9k rpm and your cam highend power is at 8 the cam and valaves cant increase in speed or frequency of the opeing of the valves then you dont get enough air and then you start loosing power or it stays the same. So reving higher doesnt always mean better performance unless you build it to rev that high for a reason. Longer duration cams can rev higher and longer than short duration and hihe lift cams. make since ?
NO . explain to me how at 8000 rpm the valves on longer turn in sync w/ the crank? if the car stops making power at 8000rpm its not due to the cams inability to open and close fast enough or often enough its because there is not enough air flow to support additional hp.according to your logic adding a bigger cam will in some way help the valves open and close faster even though it will have high lift and longer duration.