{"product_id":"hks-13-20-subaru-brz-fa20-2-1l-low-comp-step-2-full-kit-forged-pistons-i-beam-con-rod-crankshaft","title":"HKS 13-20 Subaru BRZ FA20 2.1L Low-Comp Step 2 Full Kit (Forged Pistons, I-Beam Con Rod, Crankshaft) (21004-AT004)","description":"\u003cp\u003eThe supercharger upgrade for the FA20 engine has significantly raised the level of tuning, sometimes surpassing the conventional forged connecting rod’s allowable torque limit (approximately 700 N.m). To handle this higher output and torque, the I-beam billet connecting rod, originally developed for TRB-03, is now available. This rod increases buckling strength by about 30% compared to standard forged rods, delivering exceptional performance under extreme conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemarks: Capacity: 2091, Type: D86.0-22, Boring\/Honing modification: Not required, Full flow modification: Not required, FORGED PISTON KIT + I-BEAM CON'ROD + FORGED CRANKSHAFT, Box#2: 440x360x225(Crank) 13kg\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubaru BRZ FA20 \u003c\/strong\u003e(2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePOINT-1 Piston\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eForged material improves durability.\u003c\/li\u003e\n\u003cli\u003eThe cavity is designed in piston crown to optimize the atomization of fuel during injection.\u003c\/li\u003e\n\u003cli\u003e3D Piston crown design to optimize tumble flow.\u003c\/li\u003e\n\u003cli\u003eThe piston is recessed to match high lift HKS camshafts.\u003c\/li\u003e\n\u003cli\u003eThe compression ratio range is widened depending on the gasket's specification.\u003c\/li\u003e\n\u003cli\u003eMolybdenum coated pistons reduce friction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePOINT-2 Connecting RodsSTEP1\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCracked connecting rod is chosen for the long stroke. The big end size is designed to omit modification of the engine block. (Nissan genuine bearing for RB26 and SR is required separately)\u003c\/li\u003e\n\u003cli\u003eHighly durable I-beam and cracked connecting rod are included. The connecting rod bolt size is optimized.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSTEP2\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe thickness was optimized by strength analysis. The weight increase was minimized, and the strength was increased by approximately 30%.\u003c\/li\u003e\n\u003cli\u003eI-beam shape was selected to increase the buckling strength.\u003c\/li\u003e\n\u003cli\u003eThe ideal shape was realized, and the fracture origin on the surface was eliminated by forged billet manufacturing. To improve fatigue strength, strong shot peening treatment is carried out on the surface.\u003c\/li\u003e\n\u003cli\u003eThe optimum heat treatment for chrome molybdenum steel was carried out to improve both strength and toughness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePOINT-3 Crankshaft Stroke 90.0m\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe crankshaft is made from forged materials.\u003c\/li\u003e\n\u003cli\u003eBespoke pin journal size is employed.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":49929467691322,"sku":"hks21004-AT004","price":6916.25,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/9709\/3420\/files\/43236.jpg?v=1729435820","url":"https:\/\/www.kamispeed.com\/es-ca\/products\/hks-13-20-subaru-brz-fa20-2-1l-low-comp-step-2-full-kit-forged-pistons-i-beam-con-rod-crankshaft","provider":"KamiSpeed.com","version":"1.0","type":"link"}