{"product_id":"deatschwerks-86-91-mazda-rx-7-fc-turbo-ii-fuel-rails","title":"DeatschWerks Fuel Rails – 1986-1991 Mazda RX-7 FC Turbo II (13B-T) | Pair (DW7-702)","description":"\u003ch3\u003eDeatschWerks Fuel Rails – 1986-1991 Mazda RX-7 FC Turbo II (13B-T)\u003c\/h3\u003e\n\u003cp\u003eUpgrade the fuel delivery foundation of your FC RX-7 Turbo II build with DeatschWerks Fuel Rails — precision-machined billet aluminum fuel rails engineered specifically for the 1986–1991 Mazda RX-7 FC with 13B-T turbocharged rotary engine. DeatschWerks fuel rails provide a direct, high-flow fuel delivery path to your injectors, accommodate larger injector upgrades, and deliver the build quality and fitment precision that serious fuel system builds demand. A critical component for any FC RX-7 Turbo II fuel system upgrade.\u003c\/p\u003e\n\u003ch4\u003eKey Features:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eApplication-specific fitment — engineered for the 1986–1991 Mazda RX-7 FC Turbo II (13B-T) fuel system\u003c\/li\u003e\n\u003cli\u003eBillet aluminum construction — precision-machined for strength, corrosion resistance, and a clean, professional appearance\u003c\/li\u003e\n\u003cli\u003eHigh-flow design — improved fuel flow capacity over the factory fuel rail for high-power and high-injector-flow applications\u003c\/li\u003e\n\u003cli\u003eInjector upgrade compatible — accommodates larger aftermarket injectors for builds requiring increased fuel delivery\u003c\/li\u003e\n\u003cli\u003eSold as a pair — includes both fuel rails for a complete fuel rail replacement\u003c\/li\u003e\n\u003cli\u003eDeatschWerks quality — engineered by one of the most trusted names in performance fuel system components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePerformance Benefits:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Fuel Delivery:\u003c\/strong\u003e High-flow billet aluminum rails provide a more consistent, unrestricted fuel supply to the injectors — reducing fuel pressure drop under high-demand conditions that can cause lean conditions and power loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Upgrade Support:\u003c\/strong\u003e Designed to accommodate larger aftermarket injectors for builds requiring increased fuel flow beyond the factory injector capacity — essential for high-boost and high-power 13B-T builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent Fuel Pressure:\u003c\/strong\u003e Precision-machined internal passages maintain consistent fuel pressure across all injector ports for balanced fuel delivery and even power output across the rotary engine’s operating range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e Billet aluminum construction resists the corrosion and degradation that affects aging factory fuel rails on 30+ year old FC RX-7s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Build Quality:\u003c\/strong\u003e Machined to tight tolerances for leak-free, reliable fuel system performance in high-pressure applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e DeatschWerks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e DW7-702\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Billet aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold As:\u003c\/strong\u003e Pair (both fuel rails)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e 1986–1991 Mazda RX-7 FC Turbo II (13B-T)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment Information:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1986–1991 Mazda RX-7 FC (FC3S)\u003c\/strong\u003e — Turbo II (13B-T turbocharged rotary engine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e This fuel rail is for the Turbo II (13B-T) FC RX-7 only — not for the naturally aspirated 13B or other FC variants. Verify your specific model and engine configuration before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Professional installation recommended — fuel system work requires proper safety precautions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjectors:\u003c\/strong\u003e Verify injector fitment compatibility with DeatschWerks or your fuel system builder before ordering injectors separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhat’s Included:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDeatschWerks billet aluminum fuel rails – pair (DW7-702)\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Notes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended — fuel system work involves flammable fuel and pressurized lines\u003c\/li\u003e\n\u003cli\u003eDepressurize the fuel system before beginning installation\u003c\/li\u003e\n\u003cli\u003eReplace all fuel injector O-rings when installing new fuel rails\u003c\/li\u003e\n\u003cli\u003eInspect all fuel line connections for leaks after installation before starting the engine\u003c\/li\u003e\n\u003cli\u003eVerify fuel pressure after installation with a fuel pressure gauge\u003c\/li\u003e\n\u003cli\u003eAn ECU tune is required if upgrading to larger injectors simultaneously\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhy Upgrade the FC RX-7 Fuel Rails?\u003c\/h4\u003e\n\u003cp\u003eThe factory fuel rails on a 1986–1991 Mazda RX-7 FC are now 35–40 years old — and age takes a significant toll on fuel system components. Factory fuel rails can develop internal corrosion, cracked O-ring seats, and restricted passages that compromise fuel delivery consistency. For high-power 13B-T builds running larger injectors, upgraded fuel pumps, and increased boost, the factory fuel rails become a limiting factor in fuel system performance. DeatschWerks billet aluminum rails replace aging factory hardware with precision-machined components that provide consistent, high-flow fuel delivery for the demands of a modified 13B-T.\u003c\/p\u003e\n\u003ch4\u003eThe FC RX-7 Turbo II Platform:\u003c\/h4\u003e\n\u003cp\u003eThe 1986–1991 Mazda RX-7 FC (FC3S) Turbo II is one of the most celebrated Japanese sports cars of its era — a lightweight, rear-wheel-drive platform powered by the 13B-T turbocharged twin-rotor Wankel rotary engine. The FC Turbo II has a passionate enthusiast following in the rotary performance community, with a strong aftermarket ecosystem for engine, fuel system, and suspension upgrades. The 13B-T’s unique rotary architecture makes fuel system precision particularly important — rotary engines are sensitive to fuel delivery consistency, and a well-built fuel system is a critical foundation for any high-power FC build.\u003c\/p\u003e\n\u003ch4\u003eWhy DeatschWerks?\u003c\/h4\u003e\n\u003cp\u003eDeatschWerks is one of the most respected names in performance fuel system components, with a comprehensive lineup of fuel injectors, fuel pumps, and fuel rails for import and domestic performance vehicles. Their fuel rails are precision-machined from billet aluminum to tight tolerances, ensuring consistent fuel delivery and reliable performance in high-demand applications. DeatschWerks’ application-specific approach means their FC RX-7 fuel rails are engineered for the platform — not adapted from a universal design.\u003c\/p\u003e\n\u003ch4\u003ePerfect For:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1986–1991 Mazda RX-7 FC Turbo II (13B-T) builds upgrading the fuel system for increased power output\u003c\/li\u003e\n\u003cli\u003eFC RX-7 builds running larger aftermarket injectors that require compatible fuel rails\u003c\/li\u003e\n\u003cli\u003eHigh-boost 13B-T builds where consistent fuel delivery is critical for engine reliability\u003c\/li\u003e\n\u003cli\u003eFC RX-7 restorations replacing aging, corroded factory fuel rails with quality aftermarket hardware\u003c\/li\u003e\n\u003cli\u003eAnyone building a serious FC RX-7 Turbo II fuel system who wants DeatschWerks’ precision and reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Pair with DeatschWerks injectors and an upgraded fuel pump for a complete fuel system upgrade. A matched fuel system — pump, rails, and injectors from the same manufacturer — ensures compatibility and simplifies the tuning process for your ECU calibration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Turbo II (13B-T) fitment only — not for naturally aspirated FC RX-7 variants. An ECU tune is required if upgrading injector size simultaneously. Always verify fuel system connections are leak-free before starting the engine.\u003c\/p\u003e","brand":"DeatschWerks","offers":[{"title":"Default Title","offer_id":48490664624295,"sku":"DWK7-702","price":320.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/8344\/1063\/files\/e8f594834cf9607568637f5ca96ad9f4L.png?v=1776376138","url":"https:\/\/www.straightsiximports.com\/products\/deatschwerks-86-91-mazda-rx-7-fc-turbo-ii-fuel-rails","provider":"Straight Six Imports","version":"1.0","type":"link"}