Quote Originally Posted by skullzaflare View Post
depends what year the d56 is, i have seen ratings of 86hp-168hp
the only variations i have seen is size of turbo and variable geometry turbo, not sure exactly what changed in the years
I think the ones that are making on towards 168 hp are the ones made with common rail injection, with these old IDI heads that much power would probably just about blow the heads.