What you really need to sort out is what the minimum boost your willing to run vs the maximum boost. Depending upon you ecu's capability 30hz is a nice feedback rate.Ģ. What is of more importance when running a closed loop boost control is the feedback frequency. It's really irrelevant but start with around 20hz. The minimum requested on time of the valve should not be less than the valve dead time, if fact I would stay a whole factor of 10 away from that. As has been said, you should only run one MAC valve(running two relies on the valves flowing and responding electrically the same) - unless of course your ECM is capable of twin boost control (sm4) and you can monitor exh back pressure side to side and balance the turbos that way.ġ.
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