I like it m2 being treated differently and changes being made where there is room to improve.
Now if you don't mind I coming back with more questions on your
OTS stage two tune:
1) Boost in the mid range and up top?
2) Is DCT shifting strategy changed? If not, can you do that?
Shifting at 6500rpm would be the best for accelaration with a tune that cranks up boost early on like yours at least from the dyno posted. Even on stock tune, m2 is proven to be quicker with earlier shifts by our mutiple real world tests. Unfortunitely DCT likes upshifting above 7000rpm at WOT.
3) Does m2 stock burble remain intact or is it changed to GTS style?
4) What's the AFR above 5500rpm? Concern is the stress on stock weak HPFP.
5) Does the catalyst heating circle on startup remain intact or is it removed like BM3?
6) I am assuming your tune is customizeable? What is the additional cost for a custom update on top of OTS?
Quote:
Originally Posted by VF-Engineering
Yes, they most definitely are.
We start with each new application as if it's a completely new car.
The OEM calibration strategies by the manufacturer are very different
between the 3/4-series cars, as well for the M235i, and also the once
again on the ///M2.
We learn a lot by exploring the differences in OEM tuning between the
various models and then starting our own development, custom tuning,
and final road testing from that point on.
The end results may not be wildly different, as we all know that the
hardware is similar, but the calibration strategies do vary by taking
advantage of what BMW already does very well, and making changes
only where we feel there is room to improve.
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