What tires? I can crack off 2.0 60ft's at that track with PS2 RFT 255 cross section, 35psi with my 6MT. You'll definitely be closer to 11's with a better 60ft time.
Any timing corrections on that run? Did you run Bollingers E85? Is their E85 finally back to normal again/
E90 LCI M3 7-DCT Interlagos Blue/Novillo Silver
[MS Pullies|K&N drop-in|Test Pipes |Evolve Stage II tune|Evolve Servotronic Map|Evolve M3 GTS-DCT file]