English to Polish Tech/Engineering Automotive / Cars & Trucks

This book focuses on performance and race spark-fired engines, but you should be aware that some Diesel engines have seat contact angles other than 45 degrees. Don’t assume that every engine uses a 45-degree seat. Although a narrower seat contact area generally flows better due to the heat transfer between the valve head and the valve seat), exhaust seat contact areas are usually wider to allow more efficient heat transfer, which aids in cooling the valves. An exception is the professional drag race engine application, for which the builder may take advantage of narrower seat contact widths to optimize airflow in these short-run applications, with durability taking a lower priority because these engines typically experience more frequent teardowns and freshening.

"seat" - jako przylgnia ?