ACL Nissan GTR Standard Sized High Performance Main Bearing Set 2009-2021, Tri-Metal

ACL 1M2505H-STD-1 Race Series Engine Bearings

If you???re pushing your Nissan GTR (2009-2021) to its limits, you need engine components that can keep up. The ACL 1M2505H-STD-1 Race Series Engine Bearings are engineered specifically for high-performance applications, making them a critical upgrade for any serious driver. With a focus on durability and efficiency, these tri-metal bearings are designed to thrive under higher RPMs, ensuring your engine runs smoothly even when the heat is on.

Key Features

• High-strength overlay plate with reduced thickness enhances fatigue resistance, allowing for longer-lasting performance.
• Hardened steel backs on all rod bearings improve support for the bearing lining and assist with retention in the housing.
• Increased crush enhances bearing retention, ensuring a secure fit.
• Elimination of flash plating on the back of the bearings improves heat transfer and maximizes grip between the bearings and housing.
• Increased eccentricity compensates for bore distortion at high RPM, promoting the formation of hydrodynamic oil films.
• 3/4 grooved main bearings optimize load-carrying surface area and enhance oil flow to the conrod bearings.
• Tight wall tolerances maintain consistent clearances, critical for performance applications.
• Enlarged ID chamfers accommodate large fillet radii on performance crankshafts, ensuring a perfect fit.

Technical Specifications

• Size Options: Std-0, Std-1, Std-2, Std-3, Std-4
• Oil Clearance: Standard (Graded)
• Half Type: Upper & Lower
• Material: Tri-metal with hardened steel backs
• Min Std Shaft Size: 2.5571 in / 64.951 mm
• Max Std Shaft Size: 2.5581 in / 64.975 mm
• Min Std Tunnel Size: 2.7556 in / 69.993 mm
• Max Std Tunnel Size: 2.7566 in / 70.017 mm
• Max Wall at Crown:
  • Std-0: 2.500-2.504 mm / 0.0984-0.0986 in
  • Std-1: 2.505-2.509 mm / 0.0986-0.0988 in
  • Std-2: 2.510-2.514 mm / 0.0988-0.0990 in
  • Std-3: 2.515-2.519 mm / 0.0990-0.0992 in
  • Std-4: 2.520-2.524 mm / 0.0992-0.0994 in
• Max Overall Length: 0.7874 in / 20.00 mm

Why Choose ACL Bearings?

For GTR owners looking to maximize engine performance, the ACL 1M2505H-STD-1 bearings are a must-have. They provide the reliability and strength needed for spirited driving and track days. As one satisfied GTR owner put it, "After installing these bearings, I noticed a significant improvement in my engine's responsiveness at high RPMs. They fit perfectly, and I feel more confident pushing my GTR to the limit." Don't compromise on your build; equip your GTR with ACL Race Series Engine Bearings and experience the difference.

⚠WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov