{"product_id":"rcm-4-stage-dry-sump-system-ej20-22-25","title":"RCM 4 Stage Dry Sump System EJ20\/22\/25","description":"\u003cp\u003eA key concern with any Subaru EJ engine, which has been tuned for performance or race use, is that of a reliable oil supply. A Dry Sump System can offer levels of safety and reliability which cannot be achieved when utilising a standard or even baffled wet sump configuration.\u003c\/p\u003e\n\u003cp\u003eThe RCM system completely scavenges the crankcase, which dramatically reduces the residual oil left in the crankcase and ensures the maximum amount of oil is returned back to the tank at all times.\u003c\/p\u003e\n\u003cp\u003eThis dry sump system can deliver a far more consistent oil pressure to the engine, eliminating the oil starvation issues which are associated with the flat 4 boxer type engine configuration. In addition to this the increased scavenge effect in the crankcase improves the ring to bore sealing properties.rog\u003c\/p\u003e\n\u003cp\u003eThis latest generation 4 Stage RCM dry sump system has been developed with world renowned motorsport engineering specialist Auto Verdi Racing. With multiple NASCAR titles alongside other major championship series already won using Auto Verdi components, this kit provides the same level of performance for your engine as those competing at the very highest level of motorsport.\u003c\/p\u003e\n\u003cp\u003eThroughout the 15 year history of our RCM Gobstopper race car programme our technicians have utilised the benefits offered by dry sump oiling systems on the Subaru engine platform. Constantly striving for perfection through extensive testing and development to ultimately improve both the performance and reliability of these systems has now culminated in the release of this new RCM 4 Stage Dry Sump System.\u003c\/p\u003e\n\u003cp\u003eBy incorporating 3 ultra-efficient scavenge stages and 1 pressure stage neatly packaged in a comprehensive and convenient layout specific to the EJ engine range we are confident our system not only provides the best in Subaru oiling performance but the most user friendly installation on the market! The RCM system can easily be installed without the requirement to remove the engine from the car too!\u003c\/p\u003e\n\u003cp\u003eIncluded in the kit is the RCM3485, the RCM Black series 2 port water pump kit.\u003c\/p\u003e\n\u003cp\u003eThis assembly features a corrosion resistant satin black finish designed to absorb excess heat which is then circulated into the cooling system. Water is pumped around the engine using the favoured cavitation friendly cast impellor maximizing the flow of water without unwanted aeration.\u003c\/p\u003e\n\u003cp\u003eThe pump also includes the stunning corrosion resistant billet aluminium thermostat housing allowing the smooth and efficient movement of coolant.\u003c\/p\u003e\n\u003cp\u003eAlso included is water pump gasket, thermostat seal, thermostat housing and bolts and pumps housing bolts.\u003c\/p\u003e\n\u003cp\u003eWhen used in conjunction with the RCM Dry Sump Under Bonnet Installation Kits the RCM Dry Sump kit offers unrivalled performance and reliability.\u003c\/p\u003e\n\u003cp\u003eFor Subaru Impreza GC8 \u0026amp; GF8 vehicles, please see kit RCM2670.\u003c\/p\u003e\n\u003cp\u003eFor New Age Impreza 2001-2007 vehicles please see kit RCM3300.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAuto Verdi dry sump oil pumps offer more than just enough oil flow and pressure to your race engine. With lower internal friction losses they take less power away from your engine to run at maximum horsepower. The free horsepower and best available vacuum give your engine every advantage. Use this extra horsepower to get ahead of the competition.\u003c\/li\u003e\n\u003cli\u003eHousings and scavenge rotors are made out of a very rigid high quality aircraft aluminium alloy. The material allows for a very tight machining tolerances without distortion under maximum loads. The aluminium parts are anodized before PTFE-coating to make for better adhesion.\u003c\/li\u003e\n\u003cli\u003ePressure gears are made out of the same quality steel as transmission gears. They are very hard and precision ground to withstand long cycle periods. A Balanit C coating is also applied for minimum friction.\u003c\/li\u003e\n\u003cli\u003eAuto Verdi oil pumps have been proven in NASCAR to stand many 500-mile races without maintenance. The rigid construction of our oil pumps makes them very durable in any kind of racing.\u003c\/li\u003e\n\u003cli\u003eOptional spring kit for wide ranging pressure adjustment\u003c\/li\u003e\n\u003cli\u003eUltra-efficient and powerful pump design means oil coolers can be installed on either the pressure or return lines\u003c\/li\u003e\n\u003cli\u003eSupplied with everything required to install including billet RCM Oil pump delete cover, 2 port water pump with cast impeller, pressure hose, drive pulley and belt plus all installation fasteners and hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll Subaru EJ Series Engines.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GC8 DOC","offers":[{"title":"RCM 4 Stage Dry Sump System","offer_id":50051769991410,"sku":"RCM3175","price":9500.0,"currency_code":"AUD","in_stock":true},{"title":"RCM 4 Stage Dry Sump System with Head Scavenge","offer_id":50051770024178,"sku":"RCM3231","price":9700.0,"currency_code":"AUD","in_stock":true},{"title":"RCM 4 Stage Dry Sump System with Turbo Scavenge","offer_id":50051770056946,"sku":"RCM3232","price":9700.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/9969\/2274\/files\/Screenshot2025-11-19191303.png?v=1763540063","url":"https:\/\/gc8doc.com.au\/products\/rcm-4-stage-dry-sump-system-ej20-22-25","provider":"GC8 DOC","version":"1.0","type":"link"}