View Single Post
      02-05-2013, 12:46 PM   #10
Major General
135Pats's Avatar

Drives: 135i
Join Date: May 2012
Location: Maryland

iTrader: (2)

Originally Posted by Amnizu View Post
+1. On a stock core at high rpm the turbos essentially become hot air blowers. The larger core allows the tuner to push the operating efficiency range of the turbos a little bit further. We're talking in the last 1 to 2k RPM range.

So as others have said, unless you've done supporting mods, (downpipes, software, and possibly intake) to make that extra top level horse power possible just adding FMIC won't do much for you and may even make you a bit slower.
This. A FMIC doesn't "add power" per se, rather it allows the car to hit timing targets under high load conditions for extended periods of time. I'm not sure if the 1M has a different intercooler, but the stock N54 unit is a piece of crap. If you plan to tune, a FMIC is a necessity, imo. Even running relatively tame mapping, the car will pull timing very quickly if the intercooler can't stay efficient. An upgraded intercooler allows tuned vehicles to hit significantly more aggressive timing targets, and if you plan on tracking the car even w/o a tune it's a no brainer. A very worthy upgrade for an engine that runs HOT. I would also add that at least in my experience, the power "gains" are apparent in the mid range, not just up top.
E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Meisterschaft Race/Berk Resonated/ER CP/Synapse/VRSF FMIC/FFTEC LPFP/HFS-4 DO Stainless Lines/BMS Thermostat Delete/Rob Beck PCV Valve + Cap/BMS OCC/ST Coilovers/M3 FCA + Tension Rods/M3 Subframe Bushings/M3 FSB/AA Strutbrace/DINAN Camber Plates/Apex ARC-8/Project Kics/VAC Hubs/Rogue Transmission Mounts/Alpina TCU Flash/Icarbon/Kerscher/BMW Performance