Nevertheless, custom piston makers assert that the right high-end piston and ring combination can be worth up to 30 hp on a 1.5hp/ci engine if the rest of the combination is optimized to take full ...

Radial Back Clearance: Ring groove space behind ring when the ring face is flush with the piston ring land. A back clearance of 0.008-0.012 inch is typical for racing and high-performance pistons.

The financial equation was emphasized by Probe's Shawn Mendenhall when explaining why Probe's economical FPS forged piston line still uses a conventional 5/64-inch, 5/64-inch, 3/16-inch ring pack.

Kia is recalling over 100,000 vehicles due to issues involving the piston oil ring. The affected vehicles are Kia MY SOUL and Seltos from 2021, 2022 and 2023 that are equipped with a 2.0L Nu MPI ...

Figure 4. Surface topograph of the piston ring after performing the engine test, obtained with a Bruker ContourGT interferometer. Surface parameters, including root mean square height (S q), ...

The issue stems from a potentially defective piston ring, which may lead to increased oil consumption and could eventually damage the engine. Kia is recalling 137,256 Seltos and Soul models from ...

Chao Cheng, Akintomide Akinola, Piston Friction Reduction by Reducting Piston Compression Height for Large Bore Engine Applications, SAE International Journal of Engines, Vol. 10, No. 4 (October 2017) ...

Mixed-lubrication models comprising of Patir and Cheng's [1,2] average Reynolds equation and Greenwood and Tripp's [3] asperity interaction formulations have hitherto been widely used in predicting ...

Radial Back Clearance: Ring groove space behind ring when the ring face is flush with the piston ring land. A back clearance of 0.008-0.012 inch is typical for racing and high-performance pistons.