Conclusion d'un débat sur le meilleur plenum d admission sur un moteur de mx5
"We found our best overall VICS power with a blueprinted but stock dimension race engine by switching the VICS butterflies twice. Either open-closed-open or the other way, I forget. Each engine config wanted specific set points so there is no "ideal" setting. At no point did we end up with exactly OEM set point of 5200. One has to do some experimenting on the dyno. In any case, it outperformed the VTCS handily. Only the square top making more power past the torque peak. If you want the most power possible below the natural torque peak (4800-ish), VICS and a programmable ECU. "