w221 ABC race mode....

Botus

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a Coding nerd on another forum has posted an update to an ABC tweak he offers. I asked what it does and he just redirected to a 230 thread (which reading between the lines suggests he's possibly adapted a Merc DTM mod for the 221 ????)


find it had to believe its the step change some people report.... and little real detail about retaining a std mode, for when you have UK roads and the police aren't chasing you....


I have been driving Peters P30 since June last year ( I test drove it, before release ) and P30 was a nice upgrade from stock ABC, but not a revolution in driving experience. At least that is what I feel now, after Peter installed DTM. THAT is a driving experience that you don’t want to miss.

If you are a speed addict, don’t do it, you will lose your driving license. It’s addictive, the car WANTS to go, be driven fast, like it was on the racetrack. It is like glued to the road.

It is not just an ABC program, it does changes to both ECU, SBC and SCN as well.

ABC : The ride is a step up in comparison to P30, but still comfortable, when you drive calm. ABC tighten up the suspension to hard, when you drive like you stole it. Potholes and uneven road it tighten up suspension compared with P30. My gut feeling is it allows higher G forces, and it is more driver oriented than P30, taking back on ESP, ABS, and TRC.

ECU : The throttle response is more aggressive and linear, Ignition timing has changed, probably also the variable cam timing, the engine has got more bottom end torque, and really delivers power through a broader band and on top of that my exhaust got a different more aggressive note ( I run a 3” full SS BIG CAT system + stage 1 tune ).

SCN : The tranny shifts more aggressive, the tranny stay in lower gears for longer before shifting up, when you drive with constant speed. It shifts up and down faster in general.

SBC : The brakes responds to the slightest touch of the pedal, a much more linear feel on brake force, which is nice when driving fast, and the suspension keep the car level at all times and maneuvers.

My impression is that this is a complete track program we got here, and although some components would be different on a track car, my SL 550 do perform wonderful with the DTM software.
 

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