View Single Post
      03-11-2019, 10:11 PM   #32
akkando
Major General
akkando's Avatar
5863
Rep
6,634
Posts

Drives: 17 M2 DCT LBB,11 e90 M3 ZCP IB
Join Date: Jan 2017
Location: Bay Area

iTrader: (1)

Quote:
Originally Posted by switlikbob View Post
Although this is unacceptable in my mind, I believe the "air sucking" will only happen under extreme situations like tracking the car, forcing the oil to the opposite side of the pan where the pickup is NOT located. IIRC, this is not the first time BMW has engineered a motor that has these 2 issues (rod bearing and oil pickup).

One day they'll get it right. To get around these issues, the rod bearings will have to be replaced as preventative maintenance. Some vendor will create a baffled oil pan that will help with the pickup issue, or you can install a dry sump solution, both of which will only be needed for the hardcore racing situations. In that case, I think an S55 would be better to track.
I believe the M2 N55 has the S55 oil pickup internals to prevent oil starvation.

Last edited by akkando; 03-11-2019 at 10:20 PM..
Appreciate 2
gsrbri559.50
qnet681.50