- May 19, 2004
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I'm not referring to the obvious gain of horsepower here. What I am concerned with is if there are any serious detrimental effects to using a smaller pulley (or any other methods to increase boost) on the stock Eaton blower. I was reading the latest and greatest MM&FF magazine (March '07) and the "Under Pressure" article mentioned that increasing the boost on the blower will exceed the design limitations of the boost bypass valve, and could be detrimental to the blower. The author contends, "The increase in airflow taxes the flow rate of the stock bypass valve. Since the reversion wave (when the throttle is quickly shut) cannot escape through the bypass valve, it has nowhere to but back out the rapidly spinning blower. At the very least, this will likely shorten the life of the blower."
If anyone could either confirm or deny this information I'd appreciate any comments. Thanks!
If anyone could either confirm or deny this information I'd appreciate any comments. Thanks!