View Single Post
      12-31-2014, 01:29 PM   #16
Freon
Major
United_States
91
Rep
1,051
Posts

Drives: 2009 135i
Join Date: Nov 2007
Location: Indianapolis

iTrader: (3)

Quote:
Originally Posted by DurimOne54 View Post
Don't RBs run same boost as oem turbos?
The tune sets the target boost level, so it depends on if you tune or load a map that utilizes the capabilities of the new turbos.

They have a larger compressor, and some models have a larger or clipped turbine. That should make higher boost levels usable, though you may also get a nominal increase in power at the same boost level due to higher efficiency.
__________________
2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
Appreciate 0