I plan on putting a turbo on my 86 535i. I was just wondering how these motors hold up with high mileage. the motor has 210k miles on it. I plan on rebuilding it but for now i will just run it as is. I just got done making a custom turbo kit on my e36, i just want to turbo my e28 now and havent done much research on the m30 motor.
My engine had 235,000 on the stock block when I installed the turbo. I had the head off at 230,000 to install a MLS, head studs, and b35 head. Now at 242,000 no problems to report. I am running 15lbs boost.
Thanks for the responses. Sounds like i will be fine for a while the motor is in good shape just has some oil leaks. What do you do for tuning on these, I know there is the 745 software or probably standalone.