BMW M20 M50 M52 INLINE 6 DOHC, ACL Race Series Main Bearings (7M1532H)
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BMW M20 M50 M52 INLINE 6 DOHC, ACL Race Series Main Bearings (7M1532H)
Enhance your BMW's performance with the ACL Race Series Main Bearings, specifically designed for the M20, M50, and M52 inline 6 DOHC engines. These bearings are engineered to endure higher RPM conditions, making them ideal for racing and high-performance applications. With a focus on durability and precision, these bearings ensure your engine runs smoothly and efficiently.
- High strength overlay plate with reduced thickness for improved durability
- Hardened steel backs on all Conrod Bearings for enhanced strength
- Increased crush and elimination of flash plating for better fitment
- 3/4 grooving on Main Bearings for optimal oil supply
- Tight, consistent wall tolerances for precision performance
- Oversize chamfers where applicable for improved oil flow
Explore the full range of ACL Race Series Engine Bearings for unmatched reliability and performance. Visit ACL Race Series Engine Bearings for more information.
| Product Name | BMW M20 M50 M52 INLINE 6 DOHC, ACL Race Series Main Bearings (7M1532H) |
|---|---|
| Brands | ACL |
| Engine | M20B25, M50B25, M52B32 - S52B32 |
| Make | BMW |
Delivery & Freight
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What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What are the benefits of using ACL Race Series Main Bearings in my BMW M20, M50, or M52 engine?
ACL Race Series Main Bearings are designed for high-performance applications, offering enhanced durability and precision. They feature a high strength overlay plate with reduced thickness, hardened steel backs, and increased crush for better fitment. These characteristics make them ideal for racing and high RPM conditions, ensuring your engine runs smoothly under stress.
Do I need to modify my engine for the ACL Race Series Main Bearings to fit?
While the ACL Race Series Main Bearings are designed to fit the M20, M50, and M52 engines, it's crucial to check for proper clearances and tolerances during installation. Depending on your specific engine's condition and any previous machining, you may need to perform line boring or additional adjustments to ensure optimal fitment.
How do the 3/4 grooving and tight tolerances of these bearings affect oil supply and performance?
The 3/4 grooving design on the ACL Race Series Main Bearings optimises oil supply to critical areas of the engine, enhancing lubrication and cooling. Coupled with tight, consistent wall tolerances, these features help maintain performance under high load and RPM conditions, reducing the risk of wear and failure.
What should I consider when installing these main bearings in my engine?
When installing ACL Race Series Main Bearings, ensure that the crankshaft and main caps are clean and free from debris. It's essential to check the bearing clearances with a micrometer and adjust as necessary. Additionally, proper torque specifications for the main caps should be followed to avoid any issues during operation.
Are these bearings suitable for street use or only for racing applications?
While ACL Race Series Main Bearings are primarily designed for racing and high-performance applications, they can also be used in street engines that require enhanced durability. However, keep in mind that their performance characteristics are optimised for higher RPM and load conditions, so they may not be necessary for standard street use.
