{"product_id":"cp-piston-ring-set-for-nissan-sr20de-w-turbo-bore-86-5mm-size-5mm-8-5-1","title":"CP Piston \u0026 Ring Set for Nissan SR20DE w\/ Turbo - Bore (86.5mm) - Size (.5mm) - 8.5:1","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eCP-Carrillo Forged Piston Set — Nissan SR20DE\/DET 86.5mm, 8.5:1 Dish, PVD (SC7327PVD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eA +0.5mm dished set at 8.5:1, built for a high-boost SR20. That compression is deliberately low — it's what buys detonation margin when you're running serious pressure or a big single on ethanol, and it's the ratio a build chases when timing keeps getting pulled.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eCP's shelf line includes features most manufacturers charge extra for. \u003cstrong\u003eDouble pin oilers\u003c\/strong\u003e, force fed from the oil ring, deliver oil directly to the wrist pin. \u003cstrong\u003eAccumulator grooves\u003c\/strong\u003e come standard — a pocket behind the top ring where combustion gases collect, reducing ring flutter and improving seal, which puts more downward force on the piston. \u003cstrong\u003ePick lock grooves\u003c\/strong\u003e make lock removal straightforward during assembly.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eHigh strength aluminum forgings in a super lightweight design, fully CNC machined and balanced to ±1 gram so every piston in the set matches. Deep valve reliefs clear oversized valves and high-lift cams. Suitable for turbo, supercharger, and nitrous applications.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eEach piston is engineered using computer modeling, and CP's climate-controlled inspection department runs computerized electronic equipment built for the job. CP is a division of Pankl Racing Systems.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e 86.5mm bore (3.406\"), 1.260\" compression height, -15.5cc dish, 22mm (.866\") wrist pin. Sized for 86mm stroke with a 136.25mm rod.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Nissan SR20DE and SR20DET — 240SX, 180SX, 200SX, Silvia S13\/S14\/S15, Sentra.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003ePVD coating on the wrist pins\u003c\/strong\u003e — a hard, low-friction surface treatment that reduces wear at the pin bore under high cylinder pressure.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eBlock work required\u003c\/strong\u003e — +0.5mm means boring and honing to size.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eWrist pins and rings included at no extra cost.\u003c\/p\u003e","brand":"Street Strip Supply","offers":[{"title":"Default Title","offer_id":47294518853805,"sku":null,"price":885.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/8105\/7197\/files\/296348_b0ba4d62-4030-47b8-8d47-9d26ca767963.jpg?v=1787416583","url":"https:\/\/streetstripsupply.com\/products\/cp-piston-ring-set-for-nissan-sr20de-w-turbo-bore-86-5mm-size-5mm-8-5-1","provider":"Street Strip Supply","version":"1.0","type":"link"}