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      09-27-2023, 08:33 PM   #11
Bostro
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Drives: BMW F30 335i xdrive
Join Date: Apr 2016
Location: Colorado

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2023 BMW M4 g82  [10.00]
And here we go… with bitter sweet feeling Im sharing the news about my experience about the change from RaceChip Map 7 to BM3 Stage 1 OTS map.

In few words. No difference!
Times exectly, exectly same around 3.2-3.3s to 60 and 11.2-11.3 for a 1/4 mile.

Latest draggy attached.

Observation: in the bm3 app recognized max boost at the level of 20.3PSI and while accelerating I feel how car is reaching this PSI quick and staying up to high rpms.
With Racechip I felt… butt feel… that boost may have gone even higher… not proven beither tested.

Of course elevation/DA will do some harm to overall results due to my home town elevation 5000’.

Ach… was expecting some difference so now I may need to accelerate plans to go with custom tune from Paul … just not sure I can expect recognizable difference in comparison to OTS. Any inside would be welcome…
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