Pump Gas Versusrace Gas

摘要

We have all seen it, heard about it, or done it ourselves: Filled up our street cars with race gas in the hope of seeing a performance gain. But what does it really do? If a motor is happy with 91 octane, what will race gas do to it? What possible changes would you need to perform to see a gain? We took a trip to Westech Performance Group to thor- oughly test these issues on the dyno, and come to some sort of concrete conclusion.