So my fellow car enthusiasts, I went back in the lab with BrenTuning. He found some room for improvement on his COBB protune.
The car IS insanely fast! I could only imagine what it will be like with a Vargas Stage2 turbo kit.
Anyways, with my KolaMotorsport differential, the car puts the power down, but it's still looking for traction! I do need some new rubber though.
One thing that I was bugging me with this car was the throttle response. When I would drive over bumps with my foot slightly resting on the gas pedal, bump would make my foot tap the gas and the car would jerk.
Well Brendan made the throttle a lot smoother and linear and I love it!
The new numbers are nucking futs, 473whp/542wtq on stock turbos!

Since the original map was made on much older Cobb firmware - He made an all new map and pushed the factory boost solenoids with the cobb software and WGDC tables resulting in additional power. This map was a bit more aggressive on fueling and boost. We also found a slightly more potent E85 pump. Once the power went up and load targets according to Bren, the stock throttle map was really annoying and the linear throttle maps to be really flat. We found a happy medium that makes the car alot more driveable at this aggressive power level. Boost is 19.4.

Looks like I need a Vargas Stage 2 Turbo upgrade to hold that power on the top end.

DYNO 473whp/542wtq:



Comparison DYNO chart with initial E85 50/50 TUNE (450whp/510wtq)



NEW DYNO VIDEO:


HWY TESTING VIDEO:

**Porsche Panamara, on the left decides to play with me.
**Inside camera angle starts @1:44






2008 BMW 135I Mods list:

COBB custom BrenTuning tune
BMS dual cone intakes
Forge Motorsports Diverter valves
MadnessMotorworks Intercooler
Raceland Downpipes
3" one-off custom midpipe
Berk rear axle-back street performance exhaust
Kerscher KM2 front bumper with Kerscher Carbon Fiber front lip
BMW rear Carbon Fiber spoiler
2012 European BMW headlights
19" Alufelgen SF71 wheels wrapped in Michelin Pilot Super Sport tires
Dinan performance springs .5" drop
H&R sport cup kit struts
BMW Group N M3 rear subframe bushings
Hotchkis 32mm front sway bar
Turner Motorsport adjustable endlinks
UUC motorworks customRK6A-L adjustable shift ****
BMW short shift kit
Bimmian racing pedal set
BMW V1 electronic performance steering wheel
Koala Motorsports Limited Slip Differential