{"product_id":"stanadyne-7-45mm-high-flow-lt4-direct-fuel-injector","title":"Stanadyne 7.45mm High-Flow LT4 Direct Fuel Injector","description":"\u003ch3\u003eRGX Pump + Eight Injectors Package\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSee package savings in cart.\u003c\/strong\u003e Add \u003ca href=\"\/en-ca\/products\/stanadyne-rgx-12mm-high-pressure-fuel-pump-for-gm-ltx\"\u003eone Stanadyne RGX 12mm high-pressure fuel pump\u003c\/a\u003e and \u003ca href=\"\/en-ca\/products\/stanadyne-7-45mm-high-flow-lt4-direct-fuel-injector\"\u003eeight Stanadyne 7.45mm high-flow injectors\u003c\/a\u003e to the same cart. The package discount applies automatically; no code is needed.\u003c\/p\u003e\u003cp\u003eBoth products in the required quantities must remain in the cart to receive the offer. Limit one package discount per order. Additional units are charged at their regular listed prices. Taxes and shipping are calculated separately. This offer cannot be combined with other product or order discounts.\u003c\/p\u003e\u003ch3\u003eVehicle and Engine Fitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGM Gen V LT1 and LT4 applications.\u003c\/li\u003e\n\u003cli\u003eGM trucks with L8T, L86, L87, L83 or L84 engines \u003cstrong\u003eonly when equipped with cylinder heads that accept the larger 7.45 mm injector nozzle.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNot for LT2 or LT6 applications.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eConfirm the cylinder-head injector bore and nozzle size before ordering. This 7.45 mm injector does not fit smaller-nozzle cylinder heads. Engine swaps and modified cylinder heads must be checked against the actual hardware.\u003c\/p\u003e\u003ch2\u003e61% More Flow Than an OEM LT4 Injector - Without Sacrificing the OE Spray Pattern\u003c\/h2\u003e\u003cp\u003eThe Stanadyne LT4 Gen 1 high-performance direct injector is manufactured from the ground up as a new performance injector. It is not a modified or reworked OEM injector. Precision laser-drilled nozzle technology increases available fuel flow while preserving the six-hole OE spray pattern and factory targeting designed into the GM combustion chamber.\u003c\/p\u003e\u003cp\u003eThe result is the additional direct-injection capacity needed for serious naturally aspirated, supercharged and turbocharged Gen V LT applications, while retaining OE-quality idle and drivability after correct characterization and calibration.\u003c\/p\u003e\u003ch3\u003eVerified Flow Increase\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e61% greater flow than an OEM LT4 injector\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e88% greater flow than 2020-2023 LT2 injectors\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e116% greater flow than 2023+ LT2 small-stem injectors\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInjector tip diameter: 7.45 mm, OE dimension\u003c\/li\u003e\n\u003cli\u003eNozzle holes: 6, matching the OE layout\u003c\/li\u003e\n\u003cli\u003eNozzle technology: precision laser drilled\u003c\/li\u003e\n\u003cli\u003eSpray pattern and targeting: same as OE\u003c\/li\u003e\n\u003cli\u003eNormal operating pressure: 220 bar\u003c\/li\u003e\n\u003cli\u003eMaximum fuel pressure: 280 bar\u003c\/li\u003e\n\u003cli\u003eDirect drop-in fitment for compatible OEM fuel rails and cylinder heads with the correct 7.45 mm injector bore\u003c\/li\u003e\n\u003cli\u003eFinite Element Analysis validated design\u003c\/li\u003e\n\u003cli\u003eCompatible with gasoline and E85-capable fuel systems\u003c\/li\u003e\n\u003cli\u003eDesigned for naturally aspirated, supercharged and turbocharged combinations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Documents\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/2041\/6831\/files\/Stanadyne-LT4-Injector-Technical-Details_b5756ec8-b992-4871-bae4-e6c494555353.png?v=1784666853\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOpen Injector Technical Details in a New Tab\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/2041\/6831\/files\/Stanadyne-LT4-Injector-HPTuners-Calibration-Data.pdf?v=1790372234\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload HPTuners Injector Calibration Data (PDF)\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eOrdering and Calibration Notes\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSold individually.\u003c\/strong\u003e A V8 installation requires eight injectors unless replacing a single verified unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eProfessional calibration is required.\u003c\/strong\u003e Injector characterization, high-pressure pump output, low-side fuel delivery, commanded rail pressure, fuel type and target lambda must be evaluated together. Final power capability depends on the complete combination rather than the injector alone.\u003c\/p\u003e\u003cp\u003eSMG Speed Shop and North Texas High Performance can help match these injectors with the correct Stanadyne high-pressure pump, low-side fuel system and calibration strategy for your GM LTx build.\u003c\/p\u003e","brand":"SMGspeed","offers":[{"title":"Sold Individually","offer_id":57376748732556,"sku":"01160","price":389.59,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/8208\/3980\/files\/AEJ_6954.jpg?v=1789083087","url":"https:\/\/fiperformance.com\/en-ca\/products\/stanadyne-7-45mm-high-flow-lt4-direct-fuel-injector","provider":"FI Performance","version":"1.0","type":"link"}