{"product_id":"heavy-duty-performance-street-sprung-clutch-kit-1","title":"Heavy Duty Performance Street Sprung Clutch Kit","description":"The ACT MS1-HDSS Heavy Duty Performance Street Sprung Clutch Kit combines ACT's robust Heavy Duty pressure plate with their most popular street disc, engineered for enhanced performance and durability. The Heavy Duty pressure plate features a unique diaphragm design that boosts clamp load and minimizes deflection, contributing to extended clutch life. ACT's proprietary four-stage heat-treating process ensures the diaphragm's unparalleled performance and longevity.\n\nThe performance street disc is constructed with premium organic friction materials, incorporating a high copper content to improve heat transfer. The steel-backed lining provides superior burst strength and overall durability. This disc also features reduced marcel for quicker shift action, complementing the ACT pressure plate's performance. The clutch assembly is precisely balanced to within 0.25 oz-in for smooth operation across the entire RPM range, exceeding the balance of typical stock clutches.\n\nExpect a moderate increase in pedal effort, generally between 15-40%, with smooth and positive engagement. For organic street discs, a break-in period of 300-500 miles is recommended with mild engagement, such as regular city driving, before engaging in spirited driving or racing. The kit offers a torque capacity of 330 ft-lbs, which is 34% over OE specifications. The clutch disc diameter measures 9.4 inches (240mm) and features a 1-inch input shaft diameter with 23 input spline quantity.\n\nThis clutch kit is recommended for both street and race applications. It is compatible with the 1987-1989 Chrysler Conquest (Base, TSi) and 1987-1989 Mitsubishi Starion (ESi, ESi-R) models equipped with the 2.6L L4 GAS FI SOHC Turbocharged engine.","brand":"ACT","offers":[{"title":"Default Title","offer_id":52686760902968,"sku":"MS1-HDSS","price":481.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/661162892.jpg?v=1784876420","url":"https:\/\/store.motormia.co\/products\/heavy-duty-performance-street-sprung-clutch-kit-1","provider":"MOTORMIA","version":"1.0","type":"link"}