{"product_id":"radium-engineering-fpr-spring-wide-range-universal-18-0046","title":"Radium Engineering FPR Spring- Wide Range | Universal (18-0046)","description":"\u003cp\u003e\u003cstrong\u003eAn adjustable regulator's range lives in its spring, and this one widens it.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eRadium Engineering FPR Spring, Wide Range\u003c\/strong\u003e is the tuning spring for Radium adjustable fuel pressure regulators: swapping into the regulator to shift its adjustment window, opening base pressure settings the standard spring does not reach. The service and setup part for systems whose pressure targets sit outside the factory-fitted range.\u003c\/p\u003e\n\u003ch3\u003eWhat You'll Feel\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBase pressure targets reached that the standard spring could not hold\u003c\/li\u003e\n\u003cli\u003eThe regulator matched to unusual injector, pump, or fuel-system math\u003c\/li\u003e\n\u003cli\u003eA serviceable regulator staying serviceable, springs swapping instead of regulators replacing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide range spring for Radium adjustable fuel pressure regulators\u003c\/li\u003e\n\u003cli\u003eShifts the regulator's base pressure adjustment window\u003c\/li\u003e\n\u003cli\u003eDirect service part; verify compatibility with your Radium FPR model\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Details\u003c\/h3\u003e\n\u003cp\u003eRegulator springs set the force the diaphragm balances against, and the adjustment screw only moves within the spring's authority, which is why unusual targets need the spring swap rather than more screw: the wide range spring re-centers the window. Installation follows Radium's regulator service procedure, with pressure verified on a gauge after reassembly and the vacuum reference behavior confirmed before the tune leans on it. Match the spring to your specific Radium FPR model per the documentation.\u003c\/p\u003e\n\u003ch3\u003eKit Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Wide range FPR spring (18-0046)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRadium adjustable fuel pressure regulators (verify model compatibility)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":43672703991875,"sku":"18-0046","price":9.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/radium-engineering-rad-18-0046-29454206697542.jpg?v=1786717297","url":"https:\/\/www.tunedbyshawn.com\/products\/radium-engineering-fpr-spring-wide-range-universal-18-0046","provider":"Tuned by Shawn","version":"1.0","type":"link"}