By no means am I trying to negate what you said, but I've got a few questions.
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Originally Posted by MikeWarner
My ECU will log a fault code and cut boost if it sees over 20psi.
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When you say this, I'm assuming you mean "airflow at an equivalent of 20psi" on your current setup, correct? All the ECU's I've dealt with cut fuel based on a specific airflow number off the MAF signal.
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I set my actuator to 20psi exactly and I've never had a high boost problem. After installing the jet today I went for a drive. The first time I put my foot down, the ECU light comes on and the boost is instantly cut.
What this tells me it that cooling the charge before the turbo does make the turbo more efficient. As I left the actualtor where it was, the turbo was doing the same work, but producing more boost.
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Assuming you're talking solely based on boost levels, I sort of think this is jumping to conclusion. If however, what you're saying is that you're getting more airflow at a lower boost level, and the fuel cut is occurring due to that airflow increase, then that's awesome!
I just wanted to clarify a bit. It's nice to hear more tested results! Hopefully when I move back to the states in a few months I can experiment with my own pre-compressor system.