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ACL Nissan RB30/RB30ET Turbo Standard Size High Performance Main Bearing Set STD - 7M2394HX-STD
ACL Nissan RB30/RB30ET Turbo Standard Size High Performance Main Bearing Set STD - 7M2394HX-STD - Image 2 ACL Nissan RB30/RB30ET Turbo Standard Size High Performance Main Bearing Set STD - 7M2394HX-STD - Image 2

If you're diving into the world of high-performance engines, you know that the right bearings can make all the difference. That's where the ACL Race Series Engine Bearings come into play. Designed with a unique blend of engineering know-how and top-notch materials, these bearings are built for those who push their engines to the limit—think higher RPMs and serious power.

These bearings are a solid choice for popular 4, 6, and 8-cylinder setups, especially if you're working with the Nissan RB30/RB30ET Turbo. Here’s the scoop on what makes these bearings stand out:

  • High Strength Overlay: The overlay plate is thinner, which means it’s got better fatigue resistance. You want something that can take the heat, right?
  • Hardened Steel Backs: All rod bearings come with hardened steel backs. This helps keep the lining in place and provides solid support in the housing.
  • Improved Bearing Retention: With increased crush, these bearings stay put, even under stress.
  • No Flash Plating: Forget about flash plating on the backs. This design choice enhances heat transfer and maximizes grip between the bearings and housing.
  • Increased Eccentricity: This feature helps compensate for any bore distortion at high RPMs, which is crucial for maintaining hydrodynamic oil films.
  • 3/4 Grooved Main Bearings: These are designed to optimize load-carrying surface area and oil flow to the conrod bearings, ensuring everything runs smoothly.
  • Tight Wall Tolerances: Consistency is key in performance. These bearings help you maintain tight clearances for better performance.
  • Enlarged ID Chamfers: Where needed, the edges are chamfered to accommodate larger fillet radii on performance crankshafts.

Now, let’s talk specs. These bearings come in standard size (STD) with an oil clearance of +0.001". You’ll get both upper and lower half types, made from tri-metal with hardened steel backs. Here are the nitty-gritty details:

  • Min Standard Shaft Size: 2.1634in / 54.951 mm
  • Max Standard Shaft Size: 2.1644in / 54.975 mm
  • Min Standard Tunnel Size: 2.3089in / 58.645 mm
  • Max Standard Tunnel Size: 2.3094in / 58.658 mm
  • Max Wall at Crown: 0.0714in / 1.814 mm
  • Max Overall Length: 0.7528in / 19.12 mm

So, if you're looking to get the most out of your RB30/RB30ET setup, these main bearings are a smart choice. They’re engineered for performance, and they won’t let you down when you really open up that throttle.

Other Part Numbers:
ACL #acl7M2394HX-STD

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Who is ACL?

ACL is a company that specializes in manufacturing and distributing high-quality engine bearings that have played a key role in the Australian automotive parts market. 

Based in Launceston, Tasmania, Australia, the company has been in the business for more than 70 years and has become the leading brand when it comes to its market segment.

Throughout the years, ACL has consistently provided top quality products and has become the equipment supplier of multiple Automotive brands such as Lancia, Mazda, Mini, Mitsubishi, Nissan, Peugeot, Subaru, Toyota, Volvo, Suzuki, Renault, SAAB, and more.  ACL also provides a replacement product range used by the aftermarket industry.

The company ensures that it maintains its high level of standard by employing manufacturing processes that are ISO certified. They also use the industry’s most advanced tooling equipment and designing software that allows them to create products that are superior in quality. ACL has been known worldwide to create bearings that are durable, innovative, and precise.

ACL also offers bearing used for high-performance applications. The company has been involved in motorsport racing since the 1960s and has manufactured bearings used in Brabham Formula 1. Today, their products are being used in different racing disciplines such as the Australian Supercar Championship, Drag racing, Driftings, and Rally.

Purchase ACL Bearings at Vivid Racing

Engine Bearings are a critical component of a vehicle and should not be overlooked. If you want to make sure that what you get is something you could rely on, then ACL is the brand for you. With over 200 engine applications, whether it’s an American, Australian, European, or Asian made vehicle, ACL got you covered. Visit Vivid Racing and check out their list of bearings that would fit your specific needs.

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