Performance Technician November/December 2015
In this issue: Reading the Air/Fuel Mixture: Art or Science? Almost guru Voodoo in the past,...
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Author: Performance Technician
Roller Rocker Systems, 2: Translating the Camshaft
The valve end of the roller rocker is moving in an arc and the valve is moving in a straight line, which means that the roller is going to move across the top of the valve to some small degree no matter what you do.
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Piston Rings, Part 2: Lord of the Circular Cylinder Seals
The second installment talks about how they’re all part of a system that includes various clearances, gas porting, & piston rockover, shape, & stabilization.
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Positive Crankcase Ventilation: More Important Than You Think
If the PCV (Positive Crankcase Ventilation isn’t working correctly, it can cause problems that range from poor idle quality and serious oil leaks to sludging and internal engine damage from oil contamination. Every piston engine no matter how well designed and assembled has a certain amount of blow-by past the rings, and if it can’t get out of the crankcase pressure will build up and water vapor, excess gasoline, and combustion contaminants will collect in and dilute the motor oil.
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Rat Rods Rising
When I first saw the phrase “rat rod” on craigslist.com some years ago, I knew intuitively what it meant, and it made me smile.
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Performance Technician September/October 2015
The intricacies of our first pollution control device, the lowly PCV valve and how critical it can be to making your hot rod happy, and we go back into part two of our installments on rocker systems and piston rings with a little more information and detail for you.
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Random Thoughts on Random Things: A Dying (Car) Culture
According to studies by the University of Michigan, only about 60% of today’s teenagers between 16...
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Renewing Engine Performance: Where Did the Power Go?
Backpressure can seriously sabotage your efforts to get plenty of air into the cylinders, yet many people overlook it and don’t know how to detect its presence. And how is the MAF sensor affected?
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Roller Rocker Systems, 1: Translating the Camshaft
In this installment of Greg’s great exposition of high-performance rocker arms, we’ll be looking at the science and geometry involved, which you really must understand before you start building an engine.
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