{"title":"Kiggly Racing","description":"","products":[{"product_id":"kiggly-racing-race-only-beehive-valve-spring-set-mitsubishi-4g63","title":"Kiggly Racing Race Only Beehive Valve Spring Set (4G63)","description":"\u003cdiv id=\"newdescrRC\"\u003e\n\u003ch2\u003eKiggly Racing Race Only Beehive Valve Spring Set\u003c\/h2\u003e\n\u003cp align=\"justify\"\u003eKiggly Racing LLC Race Only Beehive Valve Spring Set for high rpm and high boost 4G63 applications requiring extremely high seat pressure. This kit is made in the USA and includes an aggressive PAC Racing beehive spring, FEA-optimized proprietary hardened chrome moly retainers and treated steel seats. This is a drop-in fit with all standard 4g63 components including keepers and seals.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eThese springs are for serious builds only with a no-shim seat pressure of 131lb and can be shimmed 0.060\" to 150lb at 0.470\" \/12mm lift. This high seat pressure keeps the valves from popping off the seat due to pressure waves up to ~62psi in most applications. By adding 0.060\" shims (available through our store) extends allowable boost in most applications to ~73psi\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eThe limiting factor in the 4G63 valvetrain is typically boost levels, not RPM. To protect against this, we recommend targeting seat pressure at about 1.7x your absolute manifold pressure (boost + 14.7psi). This tends to be the worst case scenario and varies widely with the engine’s parts combo.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits all 4G63 engines including DSM and EVO\u003c\/li\u003e\n\u003cli\u003eCompatible with all popular cam profiles\u003c\/li\u003e\n\u003cli\u003eRecommended for applications running 50psi or more boost\u003c\/li\u003e\n\u003cli\u003e100% Made in the USA\u003c\/li\u003e\n\u003cli\u003eSeat pressure = 131lbs at 1.530\"\u003c\/li\u003e\n\u003cli\u003eRate = 310lb\/in\u003c\/li\u003e\n\u003cli\u003eMax recommended lift = 0.500\"\u003c\/li\u003e\n\u003cli\u003eMin recommended spring height at full lift = 1.000\"\u003c\/li\u003e\n\u003cli\u003eNot for use in street cars due to stress and wear induced to other valvetrain components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"newdescrLC\"\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1990-1999 1G \/ 2G DSM\u003c\/li\u003e\n\u003cli\u003e2003-2006 Mitsubishi Evo 8\/9\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's In The Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e(16) Chromoly Steel Retainers\u003c\/li\u003e\n\u003cli\u003e(16) PAC Racing Springs\u003c\/li\u003e\n\u003cli\u003e(16) Treated Steel Seats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer Standard Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Kiggly Racing","offers":[{"title":"Default Title","offer_id":28750700904525,"sku":"KIG SS-RACE","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1128\/7276\/products\/29662889873_a378a25c1f_o_800x_2x.progressive_5c016af1-914d-40a9-b943-0b6d0cbf63c6.jpg?v=1579512626"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1128\/7276\/collections\/kiggly-racing-3474205.jpg?v=1771872592","url":"https:\/\/jdcustomsusa.com\/zh\/collections\/kiggly-racing.oembed","provider":"JD Customs U.S.A","version":"1.0","type":"link"}