Quote:
Originally Posted by jstewart
I should have investigated this further before buying a Burger JB4 N63tu tuner. I did not realise my 2016 750i was speed limited to just over 130mph. I never installed the Burger tuner due to other priorities so now I am looking for another answer from ECU flashers. I am not looking for anything that will compromise the excellent daily driver sophistication of the great N63 motor. This car gets nearly 28.5 MPG on the highway using the cruise. What I do want is the speed limiter removed and more full throttle performance without reliability problems. Any suggestions from those with experience??  |
I currently have a stage 1 tune on my G12 750i. It's a night and day difference over stock.
Increased HP from 450HP to 580HP per the tuner. I personally haven't dyno tested to find out but the car is no joke.
Increased throttle response in all modes
Almost no turbo lag
Speed limit removed
Maintained stock drivability
Maintained stock fuel efficiency
I personally drive mixed highway and city, I am averaging 17.9mpg which is what I was getting before the tune. On long highway trips I got 28-29mpg.
I highly recommend a tune over a piggy back any day. The piggy back increases boost and forces the cars system to adjust fuel/air/timing/ignition which sometimes isn't as efficient as sometimes the system maxes out and can no longer adjust. A tune on the other hand adjusts all the parameters to accommodate the additional power. The car will run more efficiently, better power, and most reliable.
I am running the tune from DME tuning. They are very popular in the BMW world. I had their stage 3 tune in my F10 M5 for roughly 50k miles before selling. My buddy has 100k miles on his tuner car.
The g12 7 isn't really a popular platform to mod so you don't see a lot of tuned 7s. Hard to understand how reliable a tuned G12 is. Not many with high mikes either. That's why personally went with a stage 1. It's perfectly balanced and not pushing the internals too hard.