03-09-2020, 06:45 PM | #155 | |
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Ferodo DS2500 is the route I think I am going along with high temp fluid. I used a gauge to check cold pressure but used iDrive when done my laps and entering the parking area. I was on the brakes hard in a few places on the track. One long straight that where I would hit 120 and then on the binders to slow to 60 for a sharp 90 degree right. I am hooked and will try for at least 6 track days this year. |
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03-11-2020, 08:21 AM | #156 | |
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To be specific I ran 40PSI hot on ZCP 20in wheels w/MPSS and OE 19inch w/RE71Rs. |
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03-11-2020, 10:45 AM | #157 | |
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03-11-2020, 12:41 PM | #158 | |
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My $0.02 is use DSC OFF and go slow to get used to it |
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03-11-2020, 01:24 PM | #159 |
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I found MDM to be useful for the first session. I could see in the future I might use MDM for the first couple of laps at the start of each day, just to prevent any cold tire cold track stupidity on my part. Otherwise turn it off ASAP, it'll save your rear brakes, it'll force you to be more gentle with the throttle, and it'll dramatically drop lap times.
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03-11-2020, 02:10 PM | #160 | |
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Using aids would rob you of that valuable learning at slower speeds. Also the bmw electronic aids are pretty crap and give you a correction even when you don’t need it, which sucks for learning. It’s truly a nanny and not a coaching aid |
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03-12-2020, 06:49 AM | #161 | |
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03-12-2020, 06:36 PM | #162 |
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I have MDM on while driving on track, and my rear RSL29 pads are wearing faster than fronts. High pitch sound with warm pads usually means MDM is intervening (I don't look to the dashboard blinking lights, unless I'm on straight).
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03-13-2020, 08:50 AM | #163 |
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If you're seeing rear bias wear you are over driving the backend (esp. if you have a newer M with the updated MDM and istep). More modulation of throttle and you can play within the boundaries of the system (which isn't great but not the worse either).
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03-13-2020, 10:51 AM | #164 | |
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So if he is excessively using his rear brakes with DSC/MDM, I have to speculate that he is entering corners too hot.
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03-13-2020, 12:11 PM | #165 | |
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03-13-2020, 12:48 PM | #166 | |
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Are you taking about the MDM in a GTS or CS? I had Euro MDM in my F80 and it still intervened a lot unnecessarily. Especially on the corner entry where it would grab apply some brakes to "correct" a slip angle that I wanted |
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03-13-2020, 12:56 PM | #167 | |
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If it were the case though, DSC/MDM would still be applying more front brakes and not more rear brakes...
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03-14-2020, 12:46 PM | #168 |
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Too be honest I do not have enough track time with this car to know if I am too hot entering the corners, I suspect that may be the case since I am breaking as late as possible and getting on the binders pretty hard. Next time I will maybe lift a bit earlier and try for more even controlled braking with a goal to carry more exit speed. Also will run with DSC off but MDM on.
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03-14-2020, 05:26 PM | #169 | |
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03-16-2020, 07:26 AM | #170 | ||
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03-17-2020, 07:35 PM | #171 |
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Interesting! Do you have any links that explore what changed with the newer isteps? For a 2016 M3 ZCP, would you recommend getting the DSC module updated and coded to an M3 or M4 CS config?
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03-18-2020, 11:14 AM | #172 | |
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I would recommend asking your dealer to update your "istep" software to the latest version then see what you think and if needed code in the CS settings. I was able to get my dealer to do the update for free since I complained of the "headunit resetting itself," but they may try and charge you if they can't find a good reason to update it. Even if I had to pay I would have, esp. after experiencing the newer version. FYI I believe dealers have an internal name for the "istep" so they may not know what you're talking about at first. |
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04-07-2020, 09:02 PM | #173 | |
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I was running the CS engine map but recently switched to stage 1.
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04-09-2020, 11:02 PM | #174 |
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Sorry I honestly do not know. You might have better luck asking those in the modification or coding sub.
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