to honest i wont bother with electrical valve as there is no performance gain, when i had the m45 supercharger on m111 engine i was running a bosch blow off valve run by vacuum worked just fine. if i remember correctly it had 0.4-0.45 bar of boost. My i advise it watch the intake air temperature, intercooler is a must, as on my setup it reached a very high valve for such low boost.

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W123 - M111+Turbo

Thanks for the responses. YZN, were you able to mount the BOV where the recirc. valve was originally?? (photo 1) Maybe we could eliminate the entire upper half of the Kompressor (photo 2) by fabbing an outlet ?? Looks like all the upper half does is join the recirc to the outlet. (photo 3) Would make for a much more compact unit.

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i was running the older m45 sc where the valve is connected back to air filter box. what i would do is ditch the upper part and make another simpler design. you could search my old thread there should be a photo of what i have done.

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W123 - M111+Turbo

Thanks, I think that's what will do. Iv'e been messing with molding carbon fiber, might be the answer.