Hello all, My Smart 0.8 CDi with series 45 hp was with the tuner. Around 70hp and Vmax suspension were planned. Problem: after the optimization the Vmax suspension is out, but the acceleration or the engine power has not changed noticeably what. Hand-measured corresponds to the acceleration of the series specification. It runs on the track real 149 km/h, which can probably only be explained by the Vmax suspension. Charging pressure is after the tuning at 1.2 bar, so as it should be. Now the question is, why doesn’t it have more power? The tuner can’t explain it, the software has already been played up in many cars exactly as well and the extra power should be noticeable. Have their ideas that I can look for? Turbo seems to be on. As the charging pressure is measured of 1.2 bar, I assume that everything is dense.