{"product_id":"2-overdrive-crank-pulley-1","title":"2% Overdrive Crank Pulley","description":"The Alta Performance AMP-ENG-520 is a lightweight crank pulley engineered to enhance throttle response and boost performance in supercharged MINI Cooper S models.\n\nConstructed from 6061-T6 billet aluminum, this one-piece pulley weighs just 1.0 lb, significantly reducing rotational mass compared to the stock pulley (over 2.3 lbs lighter). The 2% oversized diameter increases supercharger speed, effectively simulating a smaller supercharger pulley and boosting overall power. This design also improves belt contact, reducing wear. Unlike the OEM two-piece pulley, which is prone to failure, the ALTA LCP is built for enhanced durability.\n\nThis pulley is ideal for use with existing supercharger pulley upgrades. For example, it allows a 15% supercharger pulley to function like a 17%, or a 17% pulley to act like a 19%. Despite the increased boost, the pulley maintains the integrity of the car's charging system and engine balance.\n\nThe ALTA Lightweight Crank Pulley is designed for the 2002–2006 MINI Cooper S Hardtop (R53) and the 2004–2008 MINI Cooper S Convertible (R52). It comes with installation instructions, warranty information, and ALTA stickers.","brand":"Alta Performance","offers":[{"title":"Default Title","offer_id":52686869397816,"sku":"AMP-ENG-520","price":88.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687886290.jpg?v=1784877743","url":"https:\/\/store.motormia.co\/products\/2-overdrive-crank-pulley-1","provider":"MOTORMIA","version":"1.0","type":"link"}