Nissan RB30 ACL Race Series Main Bearings

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Nissan RB30 ACL Race Series Main Bearings: Engineered for High RPM Performance
Upgrade your Nissan RB30 engine with ACL Race Series Main Bearings, meticulously designed to endure the demands of high RPM conditions. These bearings are a top choice for enthusiasts and professionals seeking reliability and performance in their 4, 6, and 8 cylinder applications. Key features include:
- High Strength Overlay Plate: Reduced thickness for enhanced durability.
- Hardened Steel Backs: Ensures robust support on all Conrod Bearings.
- Increased Crush: Eliminates flash plating for superior fit.
- 3/4 Grooving: Optimizes oil supply on Main Bearings.
- Consistent Wall Tolerances: Guarantees precision and reliability.
- Oversize Chamfers: Applied where necessary for improved performance.
| Product Name | Nissan RB30 ACL Race Series Main Bearings |
|---|---|
| Brands | ACL |
| Engine | RB30 |
| Make | Nissan |
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 key benefits of using RB30 ACL Race Series Main Bearings?
The RB30 ACL Race Series Main Bearings are designed for high RPM performance, featuring a high strength overlay plate for enhanced durability, hardened steel backs for robust support, and increased crush for a superior fit. These features ensure reliability and optimal oil supply, making them suitable for both enthusiasts and professional builds.
Do I need to machine my engine block to fit these main bearings?
Yes, it is essential to check the main bore sizes and ensure proper clearances when installing the RB30 ACL Race Series Main Bearings. Depending on the condition of your engine block, you may need to perform line boring or other machining processes to achieve the correct fit and tolerances.
What type of oil clearance should I aim for with these main bearings?
Oil clearance for the RB30 ACL Race Series Main Bearings typically depends on your specific application and RPM range. Generally, a clearance of 0.0015” to 0.0025” is common for performance applications, but always consult with your engine builder to determine the best clearance for your setup.
Are these main bearings suitable for both street and race applications?
While the RB30 ACL Race Series Main Bearings are engineered for high RPM and race conditions, they can also be used in street applications where performance is a priority. However, ensure that your engine is properly built and tuned to maximise the benefits of these bearings.