The rings sit in machined grooves in the piston and are slightly ... at operating temperature. Ring gap is where many engines fail, especially when boost is added. Regardless of the ring thickness ...

What makes piston ... top rings perform so well that even automakers are using more of them these days in production engines for durability. Steel makes more sense if you're planning boost ...

High performance engine building is the art of attention to detail. Top engine builders don’t take anything for granted. John Bouchard, engine builder at Boost Addicts in Madison, Tennessee ...

When I got started in this business over 30 years ago, the common practice was to run tighter piston ... gap, resulting in better overall sealing. But nowadays many racers, major performance ring ...

No matter how much we love them, our engines are still basically inefficient air pumps and need all the help they can get to make power. Like any other type of pump, if it leaks, it won't work.

If for some reason you disassembled a Toyota engine just to put it back and hope it will still work, here’s a short tutorial on how to check the piston rings gap tolerance, which will tell you ...

Unlike a car piston ring which is a single ring with a small gap, a Clupet ring has two turns (see photo from the Peter’s Railway YouTube video, linked below) with no gap between the two loops. In ...

If there are a lot of gases coming out, especially blue or gray smoke, this means that the piston rings are worn out, the gases are escaping through the gap between the pistons and the cylinder ...