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I have an old school roots blower on my fox coupe that doesn't have an integral idle bypass like the modern blowers have. From what I understand, this valve will circulate air from the outlet of the blower back to the inlet in an effort to reduce pumping losses and heat generation. Results usually include much cooler idle and cruise IAT's and smoother idles. Mine idles and runs fine but IAT's do creep up over time so I'm interested in experimenting with this.
Has anybody else experimented with these valves and have any real experience or results to share?
Has anybody else experimented with these valves and have any real experience or results to share?