BMW/Toyota N58, S58 Inline 6 Main Bearings (5M1572H)
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Main RACE Series Performance Engine Bearings for BMW B58B60 and S58B30 Inline 6 Engines
Upgrade your BMW's performance with the Main RACE Series Engine Bearings, specifically designed for the BMW B58B30 2998cc Inline 6 Twin Turbo (2015 onwards) and S58B30 2998cc Inline 6 Twin Turbo (2019 onwards) engines. These high-performance bearings are engineered to enhance your engine's efficiency and reliability, ensuring optimal performance under demanding conditions.
- Precision-engineered for BMW B58B30 and S58B30 engines
- Designed for high-performance and racing applications
- Enhances engine efficiency and reliability
- Compatible with 2998cc Inline 6 Twin Turbo engines
- Durable construction for long-lasting performance
Choose the Main RACE Series Engine Bearings to ensure your BMW's engine operates at peak performance, providing the reliability and power you need for both street and track.
| Product Name | BMW/Toyota N58, S58 Inline 6 Main Bearings (5M1572H) |
|---|---|
| Brands | ACL |
| Engine | B58 - S58 |
| Make | BMW, Toyota |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
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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 main benefits of using the ACL Main RACE Series Engine Bearings for the BMW B58 and S58 engines?
The ACL Main RACE Series Engine Bearings are specifically designed for high-performance applications, enhancing engine efficiency and reliability. They provide superior durability under demanding conditions, making them ideal for both street and track use in the BMW B58B30 and S58B30 engines.
Do I need to perform any specific machining when installing these main bearings?
Yes, it is crucial to ensure that the main bearing journals are properly machined and sized to fit the ACL bearings. This may involve line boring the main caps to achieve the correct clearances, as well as checking the surface finish to ensure optimal performance.
What is the recommended clearance for these main bearings in a performance application?
The recommended clearance for the ACL Main RACE Series Engine Bearings typically depends on the specific engine build and intended use. Generally, a clearance of 0.0015” to 0.0025” is common for performance applications, but always consult with your engine builder for precise specifications based on your setup.
Are these bearings compatible with stock or modified engines?
The ACL Main RACE Series Engine Bearings are designed for high-performance and racing applications, making them suitable for both stock and modified BMW B58 and S58 engines. However, modifications to the engine may require adjustments in clearance and fitment, so it's essential to work closely with your engine builder.
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