{"product_id":"hpi-hpkm-fs6r92a","title":"HPI REINFORCED 6-SPEED TRANSMISSION FOR NISSAN SILVIA S15 SR HPKM-FS6R92A","description":"\u003ctable width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"width: 65%;\"\u003e\u003cdiv align=\"left\"\u003eHPI\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eSeries Name\u003c\/td\u003e\n\u003ctd style=\"width: 65%;\"\u003e\u003cdiv align=\"left\"\u003eREINFORCED 6-SPEED TRANSMISSION\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eProduct Number\u003c\/td\u003e\n\u003ctd style=\"width: 65%;\"\u003e\u003cdiv align=\"left\"\u003eHPKM-FS6R92A\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eCompatible Car\u003c\/td\u003e\n\u003ctd style=\"width: 65%;\"\u003e\u003cdiv align=\"left\"\u003eNISSAN SILVIA S15\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eCompatible Engine\u003c\/td\u003e\n\u003ctd style=\"width: 65%;\"\u003e\u003cdiv align=\"left\"\u003eSR\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eProduct Description\u003c\/td\u003e\n\u003ctd style=\"width: 65%;\"\u003e\u003cdiv align=\"left\"\u003eHPI's reinforced transmission (capable of delivering a maximum torque of 50 kg\/m and a maximum power output of 430 hp) continues to be a favorite among many competition vehicles. ◆To fully enjoy circuit and drift driving with ideal gear ratios, we've moved the 1st and 2nd gear ratios closer to 3rd gear, and the 6th gear ratio closer to 5th gear. Furthermore, competition-specific gears are designed with strength and ease of manufacturing in mind. The low mesh ratio, which is crucial for quietness, and the rough surface finish of the teeth result in a loud whistling noise that makes them unsuitable for everyday use. Taking these factors into consideration, we've selected a gear ratio that is comfortable for everyday use. HPI's unique internal processing has further improved the performance of NISMO transmissions, and their potential continues to be highly praised by many drivers. ◆By changing the gear ratio, we've increased the gear diameter, ensuring high strength. Furthermore, without changing the gear ratio, we've reduced the number of teeth on the counter and main gears by changing the module (gear specifications) , increasing the size of each tooth to increase strength. By reducing the twist angle of the teeth, we have reduced the thrust impact force towards the front of the counter shaft caused by impact torque input, and have taken measures to prevent damage to the end face of the counter reverse gear. ◆While retaining the advantages of the standard \"FS6R92A\", by optimizing the strength and gear ratio, we have achieved operability and quietness that are incomparable to dog transmissions designed solely for competition or old-fashioned synchronized transmissions .\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eRemarks\u003c\/td\u003e\n\u003ctd style=\"width: 65%;\"\u003e\u003cdiv align=\"left\"\u003e◆During the reinforced assembly work, we control the temperature in a dedicated room and take measures to prevent dust, and using HPI's unique one-off SST, we carefully check each part by hand, one by one, to improve work precision. By assembling the parts while allowing the next-generation lubricant COA (a very popular product) to soak in, we have achieved reduced metal fatigue and a smooth shifting feel. ◆The speedometer on the S15 receives its signal from the ABS sensor, so there is no speed drive gear on the transmission side. As a result, it was not possible to display the speedometer on the S13 and S14. Taking this into consideration, we have installed a speedometer drive gear and also provided the parts necessary for its replacement. (NISMO product, genuine Nissan part) ◆Designed specifically for the S15 *This product is a COMPETITION part and is not covered by the warranty. *Please note that if input exceeds the design value, the gear may be damaged. *Make sure to use it in combination with a NISMO clutch. *Make sure to use NISMO gear oil. *Using additives other than those specified may cause damage. *The torque input from the road surface that occurs when downshifting places a heavy load on the transmission. To ensure long-term use, please adjust the engine speed before downshifting. ◆Precautions for use (regarding COMPETITION parts) This product is designed for use in motor sports activities, and is designed to withstand harsh conditions. Since performance is the priority when developing the product, noise and vibration may occur during driving. In addition, because parts require detailed settings, techniques, and maintenance to be used and installed correctly, please consult with a specialist store regarding the product's characteristics, the condition of your vehicle, and its intended use, and be aware that these parts are treated differently from general genuine parts before purchasing. Some COMPETITION parts are modifications stipulated by the government, In some cases, applications for structural change inspections, etc. may be required. For inquiries regarding each application, please contact Please contact the relevant Ministry of Land, Infrastructure, Transport and Tourism inspection and registration office. The \"Instruction Manual\" that comes with the product contains important information. Please be sure to read and understand the contents before using the product. It is extremely dangerous to use the product without following the important points. Also, never process or modify the product. When installing the product, please follow the \"Maintenance Instructions\" (issued by Nissan Motor Co., Ltd.) and \"Installation Instructions\" for the applicable vehicle model . Please follow the instructions. Disassembly and maintenance of the main parts such as the engine, braking system, and power transmission system must be performed in accordance with the following instructions. After installation, or after work is performed by a qualified person at a designated or certified repair shop, Please have your vehicle inspected by a qualified technician at a designated or certified repair shop.\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eNotes\u003c\/td\u003e\n\u003ctd style=\"width: 65%;\"\u003e\u003cdiv align=\"left\"\u003eImages are for illustration purpose only. Actual product may vary.\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"HPI","offers":[{"title":"Default Title","offer_id":54727632552227,"sku":"HPI-HPKM-FS6R92A","price":441799.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1406\/5370\/files\/E3_82_B9_E3_82_AF_E3_83_AA_E3_83_BC_E3_83_B3_E3_82_B7_E3_83_A7_E3_83_83_E3_83_88-2025-07-16-170801.png?v=1770790743","url":"https:\/\/www.blackhawkjapan.pro\/products\/hpi-hpkm-fs6r92a","provider":"Black Hawk Japan","version":"1.0","type":"link"}