Comments on: Steel monotherm diesel race piston http://www.ret-monitor.com/articles/137/steel-monotherm-diesel-race-piston/ Specific mission-critical info for professionals Fri, 18 May 2012 09:13:18 +0000 http://wordpress.org/?v=2.7.1 hourly 1 By: frank http://www.ret-monitor.com/articles/137/steel-monotherm-diesel-race-piston/comment-page-1/#comment-783 frank Mon, 12 Oct 2009 23:17:02 +0000 http://www.ret-monitor.com/articles/?p=137#comment-783 It was my understanding that a steel piston could be made to the weight of an equivalent aluminum piston. It was explained that the alum units had to use thicker walls and heavier cross sections everywhere to withstand the heat and the pressure of a comparable weight steel unit. That the steel piston's thinner sections compensated for the steel's higher density. Plus the wrist pin can be located higher in the piston, with a smaller dia, reducing weight further while lengthening the rod. As max cylinder pressures continue to rise the steel piston will become ever more effective. It was my understanding that a steel piston could be made to the weight of an equivalent aluminum piston. It was explained that the alum units had to use thicker walls and heavier cross sections everywhere to withstand the heat and the pressure of a comparable weight steel unit. That the steel piston’s thinner sections compensated for the steel’s higher density. Plus the wrist pin can be located higher in the piston, with a smaller dia, reducing weight further while lengthening the rod.

As max cylinder pressures continue to rise the steel piston will become ever more effective.

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