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What is another word for over square?

Pronunciation: [ˌə͡ʊvə skwˈe͡ə] (IPA)

"Over square" is a term commonly used in mechanics and automobile engineering to describe an internal combustion engine whose cylinder bore's diameter exceeds its stroke's length. It is also known as "short-stroke" or "oversize bore" engine. This design significantly increases the engine's potential to rev higher, resulting in better power output and higher RPM capabilities. Over-square engines are beneficial for improved fuel efficiency as they allow better intake and exhaust flow. Additionally, they offer enhanced heat dissipation due to the larger surface area in relation to the volume contained in the combustion chamber. In summary, "over square" engines provide increased power, efficiency, and a faster response.
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What are the opposite words for over square?

"Over square" is a technical term commonly used in the automotive industry to describe an engine with a larger bore diameter than stroke length. It is also referred to as a "short-stroke" engine. Its antonym, therefore, would be "under square" or a "long-stroke" engine, which has a smaller bore diameter and a longer stroke length. Under square engines tend to produce more torque at lower rpms, making them ideal for heavy-duty applications such as large trucks and farming equipment. Over square engines, on the other hand, produce more power at higher rpms, making them more suitable for sports cars and high-performance vehicles.

What are the antonyms for Over square?

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