Why an eight-valve diesel engine from Dacia?
Filed under:
diesel
The question
Why does the Dacia diesel engine have eight valves when 16 is the norm nowdays?
Asked by Martin Killeen ยท
Expert answer
Hi Martin,
You'd be surprised how many engines still make two with two valves per cylinder (i.e. eight valves in a four-cylinder engine) and actually, more valves are not always better. Generally speaking, an eight-valve engine has better low down torque, where as a 16-valve design allows freer flowing gas at higher engine speeds, releasing more power. However, the eight-valve engines are often more rugged and reliable and of course cheaper to produce.
Answered by Shane O' Donoghue