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If you’re diving into the world of high-performance engines, you’ve probably heard about the ACL Race Series Engine Bearings. These aren’t just your run-of-the-mill bearings; they’re built for those who want to push their engines to the limit without worrying about wear and tear. Designed specifically for the Mitsubishi Evolution models from 1992 to 1998 and 2000, these bearings are a solid choice for anyone looking to get the most out of their 4G63 or 4G64 engines.
So, what makes these bearings stand out? First off, the high strength overlay plate is thinner, which helps improve fatigue properties. You want your bearings to last, especially when you're running higher RPMs. Plus, the hardened steel backs on all rod bearings provide extra support for the lining, ensuring they stay put in the housing. No one wants to deal with a bearing that’s moved out of place during a race, right?
These bearings also feature increased crush for better retention, which is crucial when you're pushing your engine hard. The elimination of flash plating on the back helps with heat transfer, keeping things cool when the pressure’s on. And if you’re worried about bore distortion at high RPMs, the increased eccentricity helps form those hydrodynamic oil films you need for smooth operation.
Another neat feature is the 3/4 grooved main bearings. This design optimizes the load-carrying surface area and improves oil flow to the conrod bearings, which is vital for maintaining performance. The tight wall tolerances mean you can count on consistent clearances, and the enlarged ID chamfers on the edges accommodate those larger fillet radii found on performance crankshafts.
Now, let’s talk specs. These bearings come in sizes of STD, .025, and .25, with standard oil clearance. They’re half-type (upper and lower) and made from tri-metal hardened steel backs. If you’re curious about dimensions, the minimum standard shaft size is 1.7709 inches, maxing out at 1.7715 inches. The tunnel sizes range from 1.8897 to 1.8095 inches, and the maximum wall at the crown is 0.0586 inches.
In short, if you’re looking to enhance your Mitsubishi Evolution’s performance, these ACL Race Series Engine Bearings are a solid investment. They’re engineered for those who understand the importance of quality components in their build. Trust me, you’ll feel the difference when you hit the gas.
Other Part Numbers:
ACL #acl4B1185H-.025
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1992-1998, 2000 Mitsubishi Evolution |
Evolution | 1992-1998, 2000 |
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 RacingEngine 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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