Which is the better motor, to build? I havent decided yet if i want to go turbo in the future. I know that the A6 doesnt have vtec and it has -17hp compared to the Z6. but which motor stronger? (handle turbo better/ and less likely to blow when rebuilt) thanks.. any suggestions on what i should do? I want to build a powerful D series motor that can compete with b series motors and still be a reliable dd, what all do i need to do? thanks for your time and interest.