Hi, I was wondering if you could help answer a few questions and doubts I have about moving forward with my E85 build. I know there’s a lot of hype about E85 being corrosive and I know there are measures to take to make that less possible in the fuel lines, pumps, and filters but
Returnless fuel systems are becoming more common in new vehicles. As we learned in a recent Jeff Smith Ask Away! column, the increased use is due in part to tightening federal environmental regulations. Does that mean a returnless system is better for your engine than an earlier, return-style setup? It’s an important question to answer, especially
Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we discuss the basics of compression and how it relates to your fuel octane. T.C. • Dayton, TX Q: I have a 1993 Chevy Silverado Z71 and according to the repair manual, my small block’s compression is 8.2:1. What
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