Honestly. How can you ask for a valid answer when there are engines on there that most ppl have never even heard of... OS Giken TC-16.. what the fuck is that.???? And a cosworth YDB.... seriously dude.. I've been messing with cars for over 12 years and i have never heard of these engines let alone be able to give an accurate answer to which is better... Maybe you should change the contents of your list to a more generic fieild..