{"title":"Tuning","description":null,"products":[{"product_id":"lambda-to-afr-conversion-chart-shop-banner","title":"Lambda to AFR Conversion Chart Shop Banner","description":"\u003cp\u003eMake sense of lambda without stopping to do the math. The Graveyard Fabrication Lambda to AFR Conversion Chart Shop Banner puts a practical fuel-conversion cheat sheet on your shop wall, with 20 fuel references and 340 calculated AFR values in a clean black-on-white layout.\u003c\/p\u003e\u003cp\u003eNew to tuning? Start with lambda, find your fuel, and read across to its air-to-fuel ratio. The highlighted lambda 1.00 row shows each fuel's stoichiometric reference, helping you understand why the same lambda can mean a different AFR with a different fuel.\u003c\/p\u003e\u003ch3\u003eWhat the chart covers\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEveryday references:\u003c\/strong\u003e nominal gasoline, ethanol, methanol, and Sunoco E85-R.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated ethanol blends:\u003c\/strong\u003e E50, E55, E60, E65, E70, E75, E80, and E85.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVP Racing fuels:\u003c\/strong\u003e C12, T4, Q16, and MR12.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSunoco race fuels:\u003c\/strong\u003e 260 GTX, 260 GT, 260 GT Plus, and HCR Plus.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eLambda rows run from 0.40 to 1.20 in 0.05 steps. Main conversion numbers are approximately 3\/4 inch tall at the intended print size; fuel headings and reference notes are smaller.\u003c\/p\u003e\u003ch3\u003eChoose the layout for your shop\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorizontal:\u003c\/strong\u003e 72 x 24 inches (6 x 2 feet), with four tables side by side.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVertical:\u003c\/strong\u003e 24 x 72 inches (2 x 6 feet), with four tables stacked upright.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBoth layouts contain the same data. Each order includes one banner in your selected orientation, sized for a garage, tuning bay, or workshop wall.\u003c\/p\u003e\u003ch3\u003eBuilt for display\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e15oz blockout scrim vinyl with a matte finish\u003c\/li\u003e\n\u003cli\u003eOne-sided printing with water-resistant inks\u003c\/li\u003e\n\u003cli\u003eBrass grommets and four 30-inch hanging ropes\u003c\/li\u003e\n\u003cli\u003eGraveyard Fabrication logo and copyright\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eConversion reference, not tuning targets\u003c\/h3\u003e\u003cp\u003eLambda 1.00 is stoichiometric, not a recommended power or operating target. This chart does not define a safe tuning range or replace engine-specific tuning guidance. Gasoline is a nominal reference, not a specific octane rating. Ethanol-blend values are estimates; actual fuels vary. Confirm your exact fuel specifications and wideband display scale. Gasoline-scaled AFR is not the actual AFR for every fuel. This chart covers the listed references, not every motorsport fuel or blend.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare:\u003c\/strong\u003e Spot clean with dish soap and warm water. Use non-abrasive, non-ammonium-based cleaning products.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"72\" x 24\" (Horizontal)","offer_id":67668458537262,"sku":"19067403628068743622","price":39.0,"currency_code":"USD","in_stock":true},{"title":"24\" x 72\" (Vertical)","offer_id":67668458570030,"sku":"12528578516103057708","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/6028\/9582\/files\/9573630536765335937_2048.jpg?v=1791469684"}],"url":"https:\/\/graveyardfabrication.com\/collections\/tuning.oembed","provider":"Graveyard Fabrication","version":"1.0","type":"link"}