think your sig or whatever says you have a 530?
anyway w/the 94 engine inyour 525 you got vanos... so limited in the rpm dept... your sig also says you have an auto trans, another limfac depending on how much torque that thing can take.... my M50TU w/EAT is I guess about 200hp and 200torque (foot pounds)... meanwhile the stock GM tranny takes only like 3.1 or 4.1 (forget but its the BMW nomenclature for the transmission) Nm of torque, which calcs to about 225ft/lbs... so no turbos for me with that stock tranny in there...
JonK on the board here is the FI guru having supercharged and turbo'd M50 engines, but think the latter was a non-vanos....
guess you could do low psi 6-8 but will the tranny last?
Originally Posted by Spasso