{"product_id":"vorsprung-autowerk-trudrive-audi-3-0t-crank-pulley-upgrade-audi-supercharged-3-0t-v6","title":"Vorsprung Autowerk TruDrive Audi 3.0T Crank Pulley Upgrade, Audi Supercharged 3.0T V6","description":"\u003ch1\u003e\u003cstrong\u003eTruDrive Crank Pulley Upgrade: Precision-Engineered Boost for the Audi 3.0T V6 \u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eThe important things:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan style=\"color: #2b00ff;\"\u003eWEIGHT\u003c\/span\u003e - Heavy pulleys rob power; go ahead and ask what your crank pulley weighs. Somewhere along the way, people forgot this (and companies made more money by not adding CNC time for weight reduction). Historically, lightweight pulleys have always been a sought-after upgrade.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan style=\"color: #2b00ff;\"\u003eSTRENGTH \u003c\/span\u003e- Stainless main hub for easy installation and no aluminum to compress (safer)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLightweight aluminum outer pulley\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eModular design so you can swap pulley sizes \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e12.9 Grade Hardware Included with pre-applied blue Loctite \u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003eTruDrive Overdrive Pulley\u003c\/strong\u003e is engineered for Audi enthusiasts seeking reliable, repeatable gains from the 3.0T supercharged platform. Designed to increase supercharger speed safely and efficiently, the TruDrive delivers the rapid boost response, mid-range surge, and top-end power that the 3.0 community has come to expect from high-quality overdrive crank pulleys. Look, we didn't reinvent the pulley; we evaluated existing designs and asked how we could make them better. We found areas to add strength, reduce weight, and add sizes that the community needed.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eLightweight Exterior. Reinforced Core. Zero Compromise.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eEvery TruDrive pulley features a \u003cstrong\u003eCNC-machined aluminum outer shell\u003c\/strong\u003e, strategically designed for \u003cstrong\u003emaximum weight reduction\u003c\/strong\u003e. By minimizing rotational mass, throttle response improves, and the supercharger spins up with less parasitic drag for sharper acceleration.\u003c\/p\u003e\n\u003cp\u003eInside, a \u003cstrong\u003eprecision-formed stainless steel inner hub\u003c\/strong\u003e provides uncompromising strength. This dual-material construction ensures \u003cstrong\u003elong-term structural integrity\u003c\/strong\u003e, eliminating concerns of cracking or hub separation that can occur with lightweight single-material designs. The stainless core anchors the pulley securely to the crank, providing \u003cstrong\u003eassured safety against breakage\u003c\/strong\u003e even under elevated boost levels.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePurpose-Built for the Audi B8.5 S4 3.0T\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDrawing from the proven performance traits of leading overdrive pulleys in the Audi community, the TruDrive Overdrive Pulley provides:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIncreased blower speed\u003c\/strong\u003e for stronger boost delivery across the entire RPM range\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSignificant mid-range torque gains\u003c\/strong\u003e, improving real-world acceleration and roll-on performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with both single- and dual-pulley tuning\u003c\/strong\u003e, offering flexibility for staged upgrades\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOEM-level fitment\u003c\/strong\u003e, maintaining proper belt alignment and accessory drive operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInterchangeable outer pulley rings\u003c\/strong\u003e\u003cspan\u003e allow quick ratio changes without removing the stainless core\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEngineered for Enthusiasts Who Demand More\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe B8.5 S4 responds exceptionally well to crank overdrive increases, delivering noticeable gains even on moderate tuning setups. The TruDrive pulley maximizes this potential by applying modern materials and manufacturing precision to a platform that rewards efficiency, reliability, and airflow.\u003c\/p\u003e\n\u003cp\u003eWhether you’re chasing quicker spool, higher peak boost, or a stronger top-end charge, the \u003cstrong\u003eTruDrive Overdrive Pulley \u003c\/strong\u003edelivers performance you can feel without sacrificing safety or longevity.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eStainless steel inner core assembly\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter pulley ring in the size of your choice\u003c\/strong\u003e, fully interchangeable for easy ratio changes\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e12.9-grade high-strength mounting hardware (if you'd like to upgrade to 14.9 for a discount, email us)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue Loctite threadlocker\u003c\/strong\u003e for secure, vibration-resistant installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eNo Hype, excess weight, soft aluminum to explode, or ridiculous pulley textures that wear off and destroy your belts in areas where belts don't slip... just a product that makes sense.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e- Use the factory specifications to torque the hub to the engine \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e- For the pulley to hub:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003eUse blue Loctite\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003eFirst, tighten to 22 ft\/lbs in a star pattern to preload the bolt\u003c\/li\u003e\n\u003cli\u003eThen tighten to 44 ft\/lbs also in a star pattern, and torque twice.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdiv class=\"product-fitment-section\" style=\"margin: 20px 0; font-family: inherit;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; margin-bottom: 10px; font-weight: bold;\"\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cp\u003eThe TruDrive crank hub bolts to the same crank flange used across the Audi 3.0T EA837 supercharged platform, and was specifically developed and validated on the B8.5 S4.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; text-align: left; font-size: 0.95rem;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"border-bottom: 2px solid #ddd; background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eChassis\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eS4, S5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eB8 \/ B8.5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3.0T V6 Supercharged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eQ5, SQ5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eB8 \/ B8.5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3.0T V6 Supercharged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eA6, A7\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eC7 \/ C7.5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3.0T V6 Supercharged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eA8\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eD4\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3.0T V6 Supercharged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eQ7\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e4L \/ 4M\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3.0T V6 Supercharged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 10px; font-size: 0.85rem; color: #555;\"\u003e\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e Ring sizes (179mm, 187mm, 193mm, 207mm) share the same modular hub across this platform. Confirm your exact trim and supporting mods against the fitment above before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003eTruDrive Crank Pulley FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill an overdrive crank pulley trigger a check engine light or require a tune?\u003c\/strong\u003e\u003cbr\u003eNo dedicated tune is required just to install the pulley, but because it raises supercharger speed (and boost) across the RPM range, we recommend logging or having your tuner confirm your fueling and knock levels can support the added airflow, especially if you're already running a smaller pulley or an aggressive tune.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a new belt?\u003c\/strong\u003e\u003cbr\u003eA pulley diameter change alters belt wrap and tension slightly. We recommend having a fresh \u003ca href=\"\/products\/vorsprung-torquedrive-supercharger-belt\"\u003eTorqueDrive Supercharger Belt\u003c\/a\u003e on hand, and check that your tensioner (see our \u003ca href=\"\/products\/billet-aluminum-supercharger-tensioner-pulley-upgrade-audi-supercharged-ea837-3-0t\"\u003ebillet tensioner pulley\u003c\/a\u003e) has enough remaining travel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size pulley should I choose?\u003c\/strong\u003e\u003cbr\u003eSmaller\/overdrive pulley rings spin the supercharger faster relative to the crank, for quicker spool and stronger mid-range; larger sizes are milder, closer-to-stock options. We offer 179mm, 187mm, 193mm, and 207mm rings on the same modular hub, if you're unsure which suits your combination of tune, fuel, and supporting mods, reach out and we'll help you choose.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to upgrade my crank pulley bolts?\u003c\/strong\u003e\u003cbr\u003eThe factory bolts are a common weak point under repeated removal\/torque cycles. We recommend our \u003ca href=\"\/products\/vorsprung-unzerstorbar-high-strength-crankshaft-pulley-bolt-kit-audi-supercharged-3-0t-ea837-v6\"\u003eUnzerstörbar Grade 14.9 bolt kit\u003c\/a\u003e for extra insurance, though 12.9-grade hardware is included with every pulley.\u003c\/p\u003e\n\u003chr\u003e\n\u003cdiv style=\"background-color: #f8fafc; border: 1px solid #e2e8f0; border-radius: 8px; padding: 24px; margin: 30px 0;\"\u003e\n\u003ch3 style=\"font-size: 1.25rem; font-weight: bold; margin-top: 0; margin-bottom: 20px; text-transform: uppercase; letter-spacing: 0.5px; color: #0f172a;\"\u003eWhy Buy From Us?\u003c\/h3\u003e\n\u003cul style=\"list-style-type: none; padding: 0; margin: 0;\"\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eEnthusiast Designed \u0026amp; Tested:\u003c\/strong\u003e Developed by people who actually drive and modify these cars.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eTested on Our Own Cars:\u003c\/strong\u003e If we wouldn't run it ourselves, we don't sell it.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eContinuous R\u0026amp;D:\u003c\/strong\u003e We continually develop and improve our products instead of relying on generic catalog parts.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eSupporting Audi Platform Development:\u003c\/strong\u003e Your purchase helps fund continued development of new parts for these chassis.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eReal Enthusiast Support:\u003c\/strong\u003e Get help from people who understand the platform, not ticket bots.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eSmall Team, Big Passion:\u003c\/strong\u003e Every order directly supports continued product development and innovation.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003ePerformance Without the Marketing Fluff:\u003c\/strong\u003e Purpose-built parts designed to perform.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003eComplete Your Build\u003c\/h3\u003e\n\u003cp\u003eAn overdrive crank pulley is commonly paired with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/vorsprung-unzerstorbar-high-strength-crankshaft-pulley-bolt-kit-audi-supercharged-3-0t-ea837-v6\"\u003eUnzerstörbar Crank Pulley Bolt Kit\u003c\/a\u003e — Grade 14.9 hardware for extra insurance over the included 12.9-grade bolts.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/billet-aluminum-supercharger-tensioner-pulley-upgrade-audi-supercharged-ea837-3-0t\"\u003eBillet Supercharger Tensioner Pulley\u003c\/a\u003e — Replaces the factory plastic tensioner so belt tracking stays true at your new pulley ratio.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/vorsprung-torquedrive-supercharger-belt\"\u003eTorqueDrive Supercharger Belt\u003c\/a\u003e — A fresh, low-stretch belt to handle the extra load from an overdrive pulley.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/vorsprung-artus-sturm-supercharger-port\"\u003ePorted Supercharger Service\u003c\/a\u003e — Pair pulley speed with a ported case for the fullest gain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cb\u003eDrive the difference. Drive Vorsprung.\u003c\/b\u003e\u003c\/p\u003e\n","brand":"Vorsprung Autowerk","offers":[{"title":"179mm","offer_id":50521401327841,"sku":"sku-52034482864431","price":249.99,"currency_code":"USD","in_stock":true},{"title":"187mm","offer_id":50521401360609,"sku":"sku-52034482897199","price":279.99,"currency_code":"USD","in_stock":true},{"title":"193mm","offer_id":50521401393377,"sku":"sku-52034482929967","price":309.99,"currency_code":"USD","in_stock":true},{"title":"207mm","offer_id":50521401426145,"sku":"sku-52034482962735","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/8422\/6017\/files\/vorsprung-autowerk-trudrive-audi-3-0t-crank-pulley.jpg?v=1790180592","url":"https:\/\/pacautoperformance.com\/products\/vorsprung-autowerk-trudrive-audi-3-0t-crank-pulley-upgrade-audi-supercharged-3-0t-v6","provider":"Pacific Automotive Performance","version":"1.0","type":"link"}