View Single Post
      10-09-2019, 06:37 PM   #33
F32Fleet
Major General
F32Fleet's Avatar
United_States
1417
Rep
7,772
Posts

Drives: 2015 435i
Join Date: May 2005
Location: Southeastern US

iTrader: (0)

Quote:
Originally Posted by upsidedownfunnel View Post
Quote:
Originally Posted by F32Fleet View Post
GPF(Gas Particulate Filter) to blame?

Kinda ironic if so.
No, they're just different versions of the B58. The Euro M340i uses a version of the engine that is almost the same as the American M340i and American Z4 M40i. The Euro M340i makes about 375hp which is a direct result of the GPF required for European cars.

The B58 version in the Euro Z4 M40i and Supra are just different. I think it's mostly due to tuning, but there are some B58 versions with different parts. For instance, the earlier 320hp versions of the motor did not have the head-integrated exhaust manifold that more modern versions do.
I was thinking between Euro and US Z4..

IIRC the Supra B58 has mechanically restricted valve lift. I guess Euro z4 is same.
__________________
"Drive more, worry less. "

435i, MPPK, MPE, M-Sport Line