How the Modern Racing Pushrod was Invented » DR-1101-Trend-01
The Spintron uses a substitute crankshaft that motors the internal engine components as fast or as long as desired. It measures and records valve movement, among other things, by laser tracking. Before its creation, it was generally assumed that valve timing was controlled by the shape of the camshaft lobe, but at higher engine speeds the Spintron quickly contradicted this theory as it had the ability to calculate the deflection of a push rod and measure the loss of contact between the camshaft and the valve train. Last year Penske Racing received Trend’s one hundredth Spintron.