Running E85, gasoline, or anything in between? Innovate has three new gauges that integrate functions like calculating ethanol percentage, tracking fuel temperature or pressure, and displaying manifold pressure all in real time with 0-5V output for use with your engine management system.
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Back Cut Valves: Why Intake Valve Geometry Matters More Than You Think
Eric Weingartner just released Part One of a two-part test where he compared cylinder head flow of various intake valve back cuts.