{"product":{"id":11142676709718,"title":"Nostrum 640cc Universal PFI Injector, Single Cone Spray, USCar, Each","body_html":"\u003ch2\u003eSummary\u003c\/h2\u003e\u003cp\u003eThe Nostrum 640cc universal port fuel injector is the smaller of the two single-cone USCar injectors Nostrum sells loose, and the sensible first step for a port setup that needs more fuel than standard injectors will pass without jumping straight to a four-figure flow rate. The cone spray spreads fuel across a conventional inlet port rather than firing it at one point, the USCar plug is the connector most aftermarket looms are already built around, and each listing is a single injector, so the order matches the cylinder count rather than a fixed box quantity.\u003c\/p\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFour, six and eight cylinder port setups taking a modest step up in injector flow\u003c\/li\u003e\n\u003cli\u003eDirect injection engines running short on injector duty once an ethanol blend goes in\u003c\/li\u003e\n\u003cli\u003eLooms already terminated in USCar plugs, where a connector swap means cutting into a finished harness\u003c\/li\u003e\n\u003cli\u003eReplacing one failed injector in a working set without re-buying the whole rail\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere A 640cc Injector Lands In A Port Setup\u003c\/h2\u003e\u003cp\u003eInjector size is really a duty cycle decision. At a given rail pressure and fuel, the injector has to pass what the engine asks for at full load while still metering cleanly at idle and part throttle, and 640 cc\/min sits in the useful middle: comfortably above most standard port injectors, small enough that low-load pulse widths stay sensible. Go too big too early and the injector spends its life barely cracking open, which is why the 640 is worth weighing against the \u003ca href=\"\/products\/nostrum-800cc-universal-pfi-injector\"\u003e800cc version\u003c\/a\u003e before you commit. Same body, same plug, so the choice comes down to how much fuel each port has to pass.\u003c\/p\u003e\u003ch2\u003eKey Specs\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eManufacturer: Nostrum High Performance\u003c\/li\u003e\n\u003cli\u003eProduct Type: universal port fuel injector\u003c\/li\u003e\n\u003cli\u003eSKU: W065-0873\u003c\/li\u003e\n\u003cli\u003eFlow rate: 640 cc\/min\u003c\/li\u003e\n\u003cli\u003eSpray pattern: single cone\u003c\/li\u003e\n\u003cli\u003eConnector: USCar\u003c\/li\u003e\n\u003cli\u003eIncluded: one injector, sold individually\u003c\/li\u003e\n\u003cli\u003eFitment type: chosen by flow, connector, body dimensions and spray pattern rather than by vehicle\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment And Setup Checks\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck the injector length and both o-ring diameters against your rail and manifold bungs before ordering.\u003c\/li\u003e\n\u003cli\u003eConfirm your loom is USCar, not Sumitomo or a factory plug; adapter looms exist but they are a separate part.\u003c\/li\u003e\n\u003cli\u003eNew injector flow and dead time data have to be calibrated in before the engine is run.\u003c\/li\u003e\n\u003cli\u003eOrder one per cylinder, and ask Hoonies if you want us to sanity-check the flow against your target fuel and rail pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eNostrum High Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eUniversal port fuel injector (PFI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eW065-0873\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlow Rate\u003c\/th\u003e\n\u003ctd\u003e640 cc\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpray Pattern\u003c\/th\u003e\n\u003ctd\u003eSingle cone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnector\u003c\/th\u003e\n\u003ctd\u003eUSCar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eSingle injector (each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment Type\u003c\/th\u003e\n\u003ctd\u003eUniversal - matched by flow, connector, dimensions and spray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eHow is this different from the 800cc injector?\u003c\/h3\u003e\u003cp\u003eSame single cone spray, same USCar plug, same universal format. The only thing that changes is flow: 640 cc\/min here against 800 cc\/min there. Pick on the fuel you are running and the duty you need in hand at full load.\u003c\/p\u003e\u003ch3\u003eWill these drop onto my standard harness?\u003c\/h3\u003e\u003cp\u003eOnly if that harness is already USCar. Factory port injectors on many engines use a different plug, so check the connector on your loom, and browse the \u003ca href=\"\/collections\/port-fuel-injectors\"\u003eport fuel injector range\u003c\/a\u003e if you need a Sumitomo-bodied injector instead.\u003c\/p\u003e","vendor":"Nostrum High Performance","product_type":"Port Fuel Injectors","created_at":"2026-07-24T13:03:33+01:00","handle":"nostrum-640cc-universal-pfi-injector","updated_at":"2026-09-08T16:28:13+01:00","published_at":"2026-07-24T17:58:07+01:00","template_suffix":null,"published_scope":"global","tags":"brand:nostrum-high-performance, cat:fuel, dept:performance-parts, type:port-fuel-injectors, universal-fit","variants":[{"id":54805989261654,"product_id":11142676709718,"title":"Default Title","price":"147.97","sku":"W065-0873","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Default Title","option2":null,"option3":null,"created_at":"2026-07-24T13:03:33+01:00","updated_at":"2026-09-08T16:28:13+01:00","taxable":true,"barcode":null,"grams":0,"image_id":null,"weight":0.0,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]}],"options":[{"id":14231278747990,"product_id":11142676709718,"name":"Title","position":1,"values":["Default Title"]}],"images":[{"id":83087873671510,"product_id":11142676709718,"position":1,"created_at":"2026-07-24T16:01:59+01:00","updated_at":"2026-07-24T16:02:02+01:00","alt":"Nostrum 640cc Universal PFI Injector","width":500,"height":333,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/W065-0873_6__78881.1728334309_234bed33-606f-4feb-93b5-3560bf21e843.png?v=1784905322","variant_ids":[]}],"image":{"id":83087873671510,"product_id":11142676709718,"position":1,"created_at":"2026-07-24T16:01:59+01:00","updated_at":"2026-07-24T16:02:02+01:00","alt":"Nostrum 640cc Universal PFI Injector","width":500,"height":333,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/W065-0873_6__78881.1728334309_234bed33-606f-4feb-93b5-3560bf21e843.png?v=1784905322","variant_ids":[]}}}