707 PS (+122 PS) on production hardware with vehicle-specific Lambda‑GT calibration
The SL is not a pure sports machine but a roadster with serious grand touring ambitions. The calibration follows this dual role: more power, without the car becoming more nervous in everyday driving. Lambda‑GT presents further stages under Performance packages.
Boost pressure control, cylinder charge and torque build-up are calibrated so that the additional 122 PS are available in the upper load range. Load changes remain smooth and the torque rise even – which pays off especially with the roof open, where engine and exhaust system are perceived more directly.
The SL 55, the SL 63 and the Maybach variant share one platform and the same engine control unit (Bosch MG1CP003), but differ significantly in their data version. Before calibration, model year, software version, emissions variant and equipment of the specific vehicle are read out and taken into account.
The upgrade to 707 PS is calibrated within this system architecture – instead of bypassing protective functions to reach a higher power figure.
Changes are developed against defined targets for performance, driveability and thermal behaviour, verified by measurement and documented. For the roadster, comfort is an equally important target.
These include cold start, part load, extended steady cruising and repeated load runs – a roadster is not only driven on the track.
The customer receives the certificate for their R232 and with it traceable proof of the measured result.
The calibration can also be extended with further functions – such as adjustments to start-up and idle behaviour or defined sound functions. In an open car, Lambda‑GT sets them up with restraint and, on request, in graduated stages. Examples can be found under Real vehicle projects and Personalised vehicle configurations.
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