{"product_id":"forged-piston-set-1-6l-engine","title":"Forged Piston Set, 1.6L Engine","description":"The Supertech P4-MA790-N1 piston set is engineered for enthusiasts looking to significantly upgrade their 1990-1993 Mazda Miata 1.6L engine. Constructed from a high-silicone 4032 alloy with added copper, nickel, and magnesium, these pistons offer exceptional heat handling capabilities and superior wear resistance. Their robust design allows them to withstand pressures up to 42psi of boost, making them suitable for high-performance applications, even when using alcohol-based fuels.\n\nEach piston is produced through a sophisticated two or three-step forging process, which refines the grain structure for increased durability. This is followed by precise CNC machining and multiple heat treatments to achieve high tensile strength and uniform hardness throughout the component. To further enhance performance and longevity, the pistons feature standard contact reduction grooves to minimize friction and are equipped with meticulously honed pin bores for a perfect fit. The accompanying wrist pins are crafted from cold-extruded chrome moly steel, known for its strength and reliability, and are secured with wire clip locks.\n\nA key feature of these Supertech pistons is their phosphate dry lubricant coating. This specialized coating serves a dual purpose: it helps prevent micro-welding of the piston rings and significantly improves lubrication in the critical skirt and cylinder wall areas. This attention to detail contributes to smoother engine operation and extended component life, especially under demanding conditions.\n\nSpecifications for this set include a 79.0 mm bore, a 32mm compression height, a -3.7cc dome dish, and a resulting compression ratio of 10.6:1. This set includes four pistons.","brand":"Supertech","offers":[{"title":"Default Title","offer_id":52663923278136,"sku":"SPTP4-MA790-N1","price":658.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687720596.png?v=1784330871","url":"https:\/\/store.motormia.co\/products\/forged-piston-set-1-6l-engine","provider":"MOTORMIA","version":"1.0","type":"link"}