{"product_id":"empi-1-80-main-jet-hpmx-idf-ida-dcoe-43-5315-0","title":"EMPI Main Jet for HPMX \/ IDF \/ IDA \/ DCOE Carburetors — 1.80mm calibrated brass | Porsche 914 (1970-1976) (43-5315-0)","description":"\u003ch2\u003e\u003cb\u003eEMPI 1.80mm Main Jet — HPMX \/ IDF \/ IDA \/ DCOE Carburetors (Porsche 914 1970–1976, 43-5315-0)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cb\u003eShort answer:\u003c\/b\u003e The EMPI 43-5315-0 is a genuine EMPI 1.80mm calibrated brass main jet for EMPI 40\/44 HPMX, Weber 40\/44\/48 IDF and 48 IDA, EPC 48\/51, and Dellorto DCO\/DCOE carburetors, including those on the 1970–1976 Porsche 914. It meters fuel through the main high-speed circuit at cruise and wide-open throttle and is sold individually.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePart numbers:\u003c\/b\u003e EMPI 43-5315-0 \/ 4353150 · 1.80mm main jet\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eVehicle\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1970–1976\u003c\/td\u003e\n\u003ctd\u003ePorsche 914\u003c\/td\u003e\n\u003ctd\u003eWith EMPI 40\/44 HPMX, Weber 40\/44\/48 IDF \/ 48 IDA, EPC 48\/51 or Dellorto DCO\/DCOE carburetors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e43-5315-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eEMPI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrifice size\u003c\/td\u003e\n\u003ctd\u003e1.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMachined brass, precision-drilled orifice\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eEMPI 40\/44 HPMX, Weber 40\/44\/48 IDF and 48 IDA, EPC 48\/51, Dellorto DCO\/DCOE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold as\u003c\/td\u003e\n\u003ctd\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoxed dimensions (listed)\u003c\/td\u003e\n\u003ctd\u003e2 x 1 x 1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping weight\u003c\/td\u003e\n\u003ctd\u003e0.024 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cb\u003eWhy It Matters\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eNear the top of the rev range a properly jetted engine keeps pulling and a lean one falls flat, and the difference lives in one brass orifice. Reading the plugs after a hard run tells you which way to go: chalk-white for starved, sooty black for rich.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eInstallation Notes\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSize up to richen a lean top end, size down to lean out a rich mixture.\u003c\/li\u003e\n\u003cli\u003eGrab the sizes on either side to bracket your tune.\u003c\/li\u003e\n\u003cli\u003eIf you are unsure this fits your car, contact us with your year and model before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhat does a 1.80mm main jet do in a Weber IDF or Dellorto DCOE?\u003c\/b\u003e A genuine EMPI 1.80mm main jet is the brass metering jet that controls fuel flow through the carburetor's main high-speed circuit, at cruise and wide-open throttle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWill the EMPI 43-5315-0 fit my Porsche 914?\u003c\/b\u003e It fits 40\/44 HPMX, Weber 40\/44\/48 IDF, 48 IDA, EPC 48\/51 and Dellorto DCO\/DCOE carbs, including those on the 1970–1976 Porsche 914.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eShould I go up or down a main jet size?\u003c\/b\u003e Size up to richen a lean top end, size down to lean out a rich mixture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHow many main jets do I need?\u003c\/b\u003e Each jet is sold individually; grab the sizes on either side to bracket your tune.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat is the EMPI part number for the 1.80mm IDF main jet?\u003c\/b\u003e EMPI part number 43-5315-0, a calibrated 1.80mm main jet sold individually.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHow does it ship?\u003c\/b\u003e Ships standard ground from our Orange, California shop.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e⚠ California Proposition 65 Warning:\u003c\/strong\u003e This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"EMPI","offers":[{"title":"Default Title","offer_id":45308173287539,"sku":"43-5315-0","price":7.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/43-5315-0-scaled.jpg?v=1785946792","url":"https:\/\/www.washburnsmetal.com\/products\/empi-1-80-main-jet-hpmx-idf-ida-dcoe-43-5315-0","provider":"Washburn's Metal","version":"1.0","type":"link"}