{"product_id":"fuel-injector-clinic-1200cc-d-high-z-injector-set-ls3-ls7-lsa-l76-l92-l99","title":"Fuel Injector Clinic 1200cc-D High-Z Injector Set — LS3 \/ LS7 \/ LSA \/ L76 \/ L92 \/ L99","description":"\u003cp\u003e\u003cstrong\u003eFuel Injector Clinic 1200cc-D High-Z Injector Set — LS3 \/ LS7 \/ LSA \/ L76 \/ L92 \/ L99\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number: IS303-1200H-D\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Fuel Injector Clinic IS303-1200H-D is an application-specific set of eight high-impedance injectors for LS3, LS7, LSA, L76, L92, and L99 engines. FIC rates each injector at 1200 cc\/min and 110 lb\/hr at its standard 3-bar test pressure of 43.5 psi. At the GM OE 4-bar \/ 58 psi fuel pressure used for these applications, FIC rates each injector at approximately 1350 cc\/min and 130 lb\/hr.\u003c\/p\u003e\n\u003cp\u003eThe 1200cc-D version is the direct-plug configuration of FIC’s 1200cc injector for this application. Current application-specific listings identify the injector connection as USCAR\/EV6\/EV14-style, allowing connection to the factory-style harness without the solder-in Jetronic pigtails or plug adapters required by the standard IS303-1200H configuration.\u003c\/p\u003e\n\u003cp\u003eFIC’s 1200cc-D high-impedance injector combines substantial fuel capacity with the short-pulse-width control required for stable idle, transient fueling, and street drivability when the ECU is configured with the correct injector characterization data. Fuel Injector Clinic identifies its high-impedance injector range as suitable for gasoline and E85 applications.\u003c\/p\u003e\n\u003cp\u003eEach injector is individually serial numbered and matched using Fuel Injector Clinic’s Data Match Technology. The supplied Data Match Sheet provides measured flow-matching and latency information, and FIC provides plug-and-play GM ECU injector data through its technical-data library.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSet of eight Fuel Injector Clinic high-impedance injectors\u003c\/li\u003e\n\u003cli\u003eApplication-specific fitment for LS3, LS7, LSA, L76, L92, and L99 engines\u003c\/li\u003e\n\u003cli\u003e1200 cc\/min per injector at 43.5 psi \/ 3 bar\u003c\/li\u003e\n\u003cli\u003e110 lb\/hr per injector at 43.5 psi \/ 3 bar\u003c\/li\u003e\n\u003cli\u003eApproximately 1350 cc\/min per injector at GM OE 58 psi \/ 4 bar fuel pressure\u003c\/li\u003e\n\u003cli\u003e130 lb\/hr per injector at GM OE 58 psi \/ 4 bar fuel pressure\u003c\/li\u003e\n\u003cli\u003eSaturated \/ high-impedance electrical design\u003c\/li\u003e\n\u003cli\u003eDirect-plug electrical configuration for the listed late-model LS applications\u003c\/li\u003e\n\u003cli\u003eCurrent application data identifies a USCAR\/EV6\/EV14-style injector connector\u003c\/li\u003e\n\u003cli\u003eNo solder-in injector pigtails required for the factory-style harness connection\u003c\/li\u003e\n\u003cli\u003eCompatible with gasoline and E85\u003c\/li\u003e\n\u003cli\u003eFuel Injector Clinic Data Match Technology\u003c\/li\u003e\n\u003cli\u003eEach injector individually serial numbered\u003c\/li\u003e\n\u003cli\u003eMatched flow and latency information supplied on the Data Match Sheet\u003c\/li\u003e\n\u003cli\u003ePlug-and-play GM ECU injector data available from Fuel Injector Clinic\u003c\/li\u003e\n\u003cli\u003eShort-pulse-width control intended to support stable idle and street drivability with correct ECU data\u003c\/li\u003e\n\u003cli\u003eAll O-rings required for the listed factory application included\u003c\/li\u003e\n\u003cli\u003eFuel Injector Clinic lifetime warranty against defects in original manufacture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKit Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEight Fuel Injector Clinic 1200cc-D high-impedance injectors\u003c\/li\u003e\n\u003cli\u003eApplication-specific upper and lower O-rings for the listed factory installation\u003c\/li\u003e\n\u003cli\u003eIndividual injector serial numbers\u003c\/li\u003e\n\u003cli\u003eFuel Injector Clinic Data Match Sheet with measured matching and latency information\u003c\/li\u003e\n\u003cli\u003eAccess to applicable Fuel Injector Clinic GM ECU injector data\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFlow and Test Conditions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNominal injector size: 1200 cc\/min\u003c\/li\u003e\n\u003cli\u003eFlow at 43.5 psi \/ 3 bar: 1200 cc\/min per injector\u003c\/li\u003e\n\u003cli\u003eMass flow at 43.5 psi \/ 3 bar: 110 lb\/hr per injector\u003c\/li\u003e\n\u003cli\u003eFlow at GM OE 58 psi \/ 4 bar: approximately 1350 cc\/min per injector\u003c\/li\u003e\n\u003cli\u003eMass flow at GM OE 58 psi \/ 4 bar: 130 lb\/hr per injector\u003c\/li\u003e\n\u003cli\u003eFIC rating test temperature: 90°F fuel temperature\u003c\/li\u003e\n\u003cli\u003eFIC calibration fluid: CF-16B\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical and Mechanical Configuration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInjector type: saturated \/ high impedance\u003c\/li\u003e\n\u003cli\u003eQuantity: eight injectors\u003c\/li\u003e\n\u003cli\u003eElectrical connection: direct-plug configuration for the listed application\u003c\/li\u003e\n\u003cli\u003eConnector family: USCAR\/EV6\/EV14-style according to current application-specific retailer data\u003c\/li\u003e\n\u003cli\u003eFitment: application-specific configuration for LS3, LS7, LSA, L76, L92, and L99 engines\u003c\/li\u003e\n\u003cli\u003eApplication-specific O-rings are included\u003c\/li\u003e\n\u003cli\u003eSolder-in pigtails and connector adapters are not required for the factory-style harness connection\u003c\/li\u003e\n\u003cli\u003eExact injector body length is not published on FIC’s current IS303-1200H-D product page\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFuel Compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGasoline\u003c\/li\u003e\n\u003cli\u003eE85\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInjector Matching and ECU Data\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMatched using Fuel Injector Clinic Data Match Technology\u003c\/li\u003e\n\u003cli\u003eEach injector individually serial numbered\u003c\/li\u003e\n\u003cli\u003eData Match Sheet supplied with measured matching results and latency information\u003c\/li\u003e\n\u003cli\u003ePlug-and-play GM ECU injector data available from Fuel Injector Clinic\u003c\/li\u003e\n\u003cli\u003eFIC publishes separate 1200D calibration data for GM\/HP Tuners, Holley, MaxxECU, and other supported ECU platforms\u003c\/li\u003e\n\u003cli\u003eCorrect injector characterization must be entered into the ECU for proper fueling, idle quality, transient response, and drivability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplication Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFuel Injector Clinic lists IS303-1200H-D for LS3, LS7, LSA, L76, L92, and L99 engines. Confirm the intake manifold, fuel rail, and injector configuration before ordering when the engine uses aftermarket induction components.\u003c\/li\u003e\n\u003cli\u003eThe 1200cc rating is measured at 43.5 psi \/ 3 bar. The same injector flows approximately 1350 cc\/min and 130 lb\/hr at the GM OE 58 psi \/ 4 bar fuel pressure.\u003c\/li\u003e\n\u003cli\u003eInjector flow changes with differential fuel pressure. Fuel-system sizing should be based on actual regulated differential pressure and fuel type rather than the nominal 1200cc designation alone.\u003c\/li\u003e\n\u003cli\u003eThe IS303-1200H-D is the direct-plug version of this application. The standard IS303-1200H uses a different injector electrical connection and requires pigtails or adapters for the factory harness.\u003c\/li\u003e\n\u003cli\u003eThese injectors require appropriate ECU characterization. Use the FIC-supplied 1200D flow, latency, and characterization data rather than generic 1200cc injector values or data intended for the non-D 1200H injector.\u003c\/li\u003e\n\u003cli\u003eFuel pumps, fuel-pressure regulator, fuel rails, filters, feed and return lines, ECU configuration, and other fuel-system components are not included.\u003c\/li\u003e\n\u003cli\u003eFIC supplies the O-rings required for the listed factory application. Aftermarket rails, intake manifolds, or unusual injector mounting arrangements may require different seals, spacers, or fitment hardware.\u003c\/li\u003e\n\u003cli\u003eThis product is a port-fuel-injector set and is not a direct-injection injector replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEmissions and Competition-Use Notice\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePerformance fuel-system modifications may affect vehicle emissions compliance and road-use legality. The purchaser and installer are responsible for determining that the completed vehicle complies with all applicable emissions, registration, fuel-system, and competition-use requirements.\u003c\/em\u003e\u003c\/p\u003e","brand":"Fuel Injector Clinic","offers":[{"title":"Default Title","offer_id":46289812389945,"sku":null,"price":1077.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8512\/9017\/files\/IS303-1200H-D_57d8db6e-03e4-49ce-9a46-bb921d15c472.webp?v=1786211879","url":"https:\/\/rad-power.com\/products\/fuel-injector-clinic-1200cc-d-high-z-injector-set-ls3-ls7-lsa-l76-l92-l99","provider":"RAD","version":"1.0","type":"link"}