ahh.. i see.. they probably mix some good parts from each engine to build one good engine. so based on your experience, what do u think about tuning a EF-DET for racing/time attack? its a DOHC and good high end power. its a 3 cyl big bore.. easily bored to 72mm kelisa piston.. no temperature problem like EFJL.. but abit less aftermarket performance parts to choose..