Originally Posted by Jano_OddKidd
To make a good Zetec engine worth turbocharging, the crank and rods are scrap to start with. The head needs to be ported. They are not a free flowing as you seem to think they are.
Tell me what CVH engine you know of that could produce the same amount of power as this Zetec with the same amount of boost?
Irrelevant. Why that Zetec? Why is it so special? Do you even know why they apparently produce more power than a CVH for the same boost?