Yachtsman wrote: ↑Thu Aug 10, 2017 12:10 pm The engineers at Oldsmobile obviously thought there was some benefit but the bean-counters put a stop to it. The bean-counters at Triumph did the same they stopped the 16 valve TR7 just because they couldn't see much benefit. At 4000 RPM there isn't much in it , but at 6500 RPM 16 valves are worth every pennybut it is not worth any penny if the actual average engine RPM is well below the point where it will be worth a penny.
and as most cars are just floating around in city traffic with low RPM why build an engine that peaks power way up the rev range