I was told to have a read upon your turbo build as i am looking to turbo mine.
Only problem is; it is a 328i engine.
I aint really got much knowledge behind these and the reason's why people go m50 over m52 is the Alloy blocks they use; but have you ever heard of an alloy block warping or getting damaged to the fact its alloy?
Reason is i dont facny going down the route of conversion jobs again unless its going to mean 100% more reliability or better value ect ect.
Great build anyways