{"product_id":"i-30501341-granatelli-motor-sports-spark-plug-gapping-tool","title":"Granatelli Precision Spark Plug Gapping Tool for Turbo, Supercharged \u0026 Performance Engines – 540109","description":"\u003cdiv class=\"gms-tool-product\"\u003e\n\u003c!-- PRECISION TOOL HERO --\u003e\u003cdiv class=\"gms-s286\"\u003e\n\u003cp class=\"gms-s287\"\u003eGRANATELLI PRECISION IGNITION TOOLS\u003c\/p\u003e\n\u003ch2 class=\"gms-s288\"\u003eDON’T EYEBALL YOUR SPARK PLUG GAP — SET IT.\u003c\/h2\u003e\n\u003cp class=\"gms-s241\"\u003eThe \u003cstrong\u003eGranatelli 540109 Spark Plug Gapping Tool\u003c\/strong\u003e gives racers, engine builders and performance enthusiasts a controlled way to accurately adjust \u003cstrong\u003espark plug electrode gap\u003c\/strong\u003e without relying on crude bending or guesswork.\u003c\/p\u003e\n\u003cp class=\"gms-s144\"\u003eDesigned for repeatable \u003cstrong\u003espark plug gap adjustment\u003c\/strong\u003e, it is especially useful for turbocharged, supercharged and high-boost engines where the correct plug gap can make the difference between clean ignition and a misfire under load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- PERFORMANCE STRIP --\u003e\u003cdiv class=\"gms-s289\"\u003e\u003ctable class=\"gms-s81\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"gms-s198\"\u003e\n\u003cdiv class=\"gms-s150\"\u003ePRECISE\u003c\/div\u003e\n\u003cdiv class=\"gms-s152\"\u003eGAP ADJUSTMENT\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"gms-s198\"\u003e\n\u003cdiv class=\"gms-s150\"\u003eREPEATABLE\u003c\/div\u003e\n\u003cdiv class=\"gms-s152\"\u003eENGINE SETUP\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"gms-s290\"\u003e\n\u003cdiv class=\"gms-s150\"\u003eCONTROLLED\u003c\/div\u003e\n\u003cdiv class=\"gms-s152\"\u003eELECTRODE MOVEMENT\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c!-- WHY GAP MATTERS --\u003e\u003cdiv class=\"gms-s291\"\u003e\n\u003cp class=\"gms-s192\"\u003eIGNITION BASICS THAT ACTUALLY MATTER\u003c\/p\u003e\n\u003ch3 class=\"gms-s250\"\u003eWhy Spark Plug Gap Matters\u003c\/h3\u003e\n\u003cp class=\"gms-s144\"\u003eSpark plug gap directly affects how the ignition system fires the air\/fuel mixture. On \u003cstrong\u003ehigh-performance, turbocharged and supercharged engines\u003c\/strong\u003e, increased cylinder pressure can make the spark harder to maintain. A properly set plug gap helps support consistent ignition and reduces the chance of misfire under load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- SIMPLE PROCESS --\u003e\u003cdiv class=\"gms-s292\"\u003e\n\u003ch3 class=\"gms-s251\"\u003ePrecision Without the Guesswork\u003c\/h3\u003e\n\u003ctable class=\"gms-s104\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"gms-s153\"\u003e\n\u003cdiv class=\"gms-s154\"\u003e01\u003c\/div\u003e\n\u003cstrong\u003eSecure the Plug\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"gms-s95\"\u003ePosition the spark plug for controlled adjustment.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"gms-s153\"\u003e\n\u003cdiv class=\"gms-s154\"\u003e02\u003c\/div\u003e\n\u003cstrong\u003eAdjust Gradually\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"gms-s95\"\u003eMove the electrode in small, controlled increments.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"gms-s153\"\u003e\n\u003cdiv class=\"gms-s154\"\u003e03\u003c\/div\u003e\n\u003cstrong\u003eMeasure \u0026amp; Verify\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"gms-s95\"\u003eConfirm the final gap with the proper measuring gauge.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- WHO IT IS FOR --\u003e\u003cdiv class=\"gms-s272\"\u003e\n\u003ch3 class=\"gms-s273\"\u003eBuilt for the Workbench, Race Trailer or Garage\u003c\/h3\u003e\n\u003cp class=\"gms-s293\"\u003e\u003cspan class=\"gms-s98\"\u003e●\u003c\/span\u003e Turbocharged Engines    \u003cspan class=\"gms-s98\"\u003e●\u003c\/span\u003e Supercharged Engines    \u003cspan class=\"gms-s98\"\u003e●\u003c\/span\u003e High-Boost Builds    \u003cspan class=\"gms-s98\"\u003e●\u003c\/span\u003e Race Engines    \u003cspan class=\"gms-s98\"\u003e●\u003c\/span\u003e Street Performance    \u003cspan class=\"gms-s98\"\u003e●\u003c\/span\u003e Engine Builders \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- WHY THIS TOOL --\u003e\u003cdiv class=\"gms-s199\"\u003e\n\u003ch3 class=\"gms-s135\"\u003eWhy Use a Dedicated Spark Plug Gapping Tool?\u003c\/h3\u003e\n\u003ctable class=\"gms-s104\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"gms-s124\"\u003e\n\u003cstrong\u003e✓ More Controlled Adjustment\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"gms-s65\"\u003eHelps move the electrode gradually instead of bending it aggressively.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"gms-s124\"\u003e\n\u003cstrong\u003e✓ Repeatable Plug Setup\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"gms-s65\"\u003eMakes it easier to prepare an entire set of spark plugs consistently.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"gms-s123\"\u003e\n\u003cstrong\u003e✓ Performance Engine Friendly\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"gms-s65\"\u003eUseful when plug gap is being adjusted around boost, ignition output or tuning requirements.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"gms-s123\"\u003e\n\u003cstrong\u003e✓ Shop-Grade Construction\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"gms-s65\"\u003eDesigned for repeated garage, engine-shop and trackside use.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- SPECS --\u003e\u003cdiv class=\"gms-s274\"\u003e\n\u003cp class=\"gms-s192\"\u003eTOOL DETAILS\u003c\/p\u003e\n\u003ch3 class=\"gms-s135\"\u003eProduct Specifications\u003c\/h3\u003e\n\u003ctable class=\"gms-s117\"\u003e\u003ctbody\u003e\n\u003ctr class=\"gms-s112\"\u003e\n\u003ctd class=\"gms-s294\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"gms-s61\"\u003e\u003cstrong\u003e540109\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"gms-s61\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"gms-s61\"\u003eSpark Plug Gapping \/ Adjustment Tool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"gms-s112\"\u003e\n\u003ctd class=\"gms-s61\"\u003e\u003cstrong\u003ePrimary Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"gms-s61\"\u003eControlled Spark Plug Gap Adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"gms-s61\"\u003e\u003cstrong\u003eRecommended Use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"gms-s61\"\u003eStreet, Performance, Turbo, Supercharged \u0026amp; Racing Engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"gms-s112\"\u003e\n\u003ctd class=\"gms-s61\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"gms-s61\"\u003eUniversal Performance Tool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- IMPORTANT SETUP NOTE --\u003e\u003cdiv class=\"gms-s295\"\u003e\n\u003cp class=\"gms-s296\"\u003eSPARK PLUG SETUP NOTE\u003c\/p\u003e\n\u003cp class=\"gms-s252\"\u003e\u003cstrong\u003eThere is no universal “best” spark plug gap.\u003c\/strong\u003e Always set the plug gap according to the engine combination, spark plug manufacturer, ignition system, boost level and tuner or engine-builder recommendation. Measure the final gap with a proper spark plug gap gauge after adjustment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Granatelli Motor Sports","offers":[{"title":"Default Title","offer_id":49595267055771,"sku":"GMS-'540109","price":98.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/5131\/1259\/files\/F198648421.jpg?v=1790007571","url":"https:\/\/sr1performance.com\/products\/i-30501341-granatelli-motor-sports-spark-plug-gapping-tool","provider":"SR1 Performance","version":"1.0","type":"link"}