ACL Rod Bearing Set BMW F10 M5 V8 N63/S63
The BMW S63 engine comes from the factory with proper bearing clearance. This ACL rod bearing set is designed to replicate BMW standard rod bearing clearance. This bearing clearance is what we use on the race engines we build in the shop and what we recommend for this engine.
- High strength overlay plate with reduced thickness for improved fatigue properties
- Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
- Increased crush for improved bearing retention
- Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
- Increased eccentricity to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
- 3/4 grooved Main Bearings to optimize bearing load carrying surface area and oil flow to the conrod bearings.
- Tight consistent wall tolerances to help you maintain consistent clearances.
- Enlarged ID chamfers on bearing edges where required to accommodate large fillet radius on performance crankshafts.
- Fits:BMW S63B44
- ACL Race Series performance engine bearings are manufactured to exacting tolerances with particular attention paid to wall thickness accuracy. This ensures reliable fit and helps maintain consistent clearances.
- Improved bearing retention from higher radial contact pressure. Locks the bearing into the housing.
- ACL Race Series performance engine bearings feature increased eccentricity to increase improve shape adaptation to compensate for bore distortion at high speed operation Assists in the formation of hydrodynamic oil film.
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