{"product_id":"forged-aluminum-piston-set-86-5mm-bore-9-0-1","title":"Forged Aluminum Piston Set, 86.5mm Bore, 9.0:1","description":"The CP-Carrillo SC7221 piston set is engineered for the 2008-2015 Mitsubishi Lancer Evolution X, utilizing a robust forged aluminum construction.\n\nEach piston is fully CNC machined and balanced to within +\/- 1 gram, ensuring optimal engine operation. The set includes 4 pistons, rings, wrist pins, and pin clips. Specific features include Anti Detonation Grooves (Contact Reduction Grooves), an Accumulator Groove, and CP Groove (Constant Pressure) technology. The pistons also incorporate double pin oilers for superior lubrication and are constructed using X-Forgings for added strength. The bore size is 86.5mm with a 0.5mm oversize, a 86mm stroke, 143.75mm rod length, and a compression height of 33.4mm. The dome volume is -5.3cc, contributing to the 9.0:1 compression ratio, and they utilize a 23mm wrist pin.\n\nThe CP Groove, a unique feature, acts as a channel on the lower part of the top land to equalize pressure behind the top ring. When used with lateral gas ports, it aids in keeping those ports clear of carbon buildup and prevents the top land from smudging into the top ring if it contacts the cylinder bore. This design enhances both performance and longevity under demanding conditions.\n\nApplication is specifically for the 2008-2015 Mitsubishi Lancer Evolution X with the 4B11T engine.","brand":"CP Carrillo","offers":[{"title":"Default Title","offer_id":52687475409208,"sku":"SC7221","price":287.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/661178207.jpg?v=1784884605","url":"https:\/\/store.motormia.co\/products\/forged-aluminum-piston-set-86-5mm-bore-9-0-1","provider":"MOTORMIA","version":"1.0","type":"link"}