3. After using the piston ring squaring tool, the ring gap measured 0.019-inch. That's a 0.005-inch difference, which in the world of high performance engine building, might as well be a mile.

But nowadays many racers, major performance ring manufacturers like Federal Mogul/Speed-Pro, and even the new car manufacturers recommend that the second ring should have a larger gap than the top ...

Each ring has gap, which serves two purposes - it enables you to take them out or put them back in their niches on the piston, as well as allowing you to measure how much worn they are.

Tech | Piston And Ring Technologies Whether you're considering new cars, or the high-performance aftermarket, engines are being built with more power than ever ...

The two most common places to use a set are when you’re setting valve lash or checking piston ring gap, two supremely important measurements related to the longevity of an engine.

After slotting a new piston ring in, it will leave a small gap between its ends, so you will have to rotate the next ring until its gap is opposing the other. This way, pressure will be better ...

3. After using the piston ring squaring tool, the ring gap measured 0.019-inch. That’s a 0.005-inch difference, which in the world of high performance engine building, might as well be a mile.