ACL H Race Rod Bearings Set .025 BMW M3 E90 E92 E93 S65B40 V8 8B1580H-.025
High performance Trimetal engine bearings
Designed to withstand higher RPM conditions
High strength overlay plate with reduced thickness for improved fatigue properties
| Sizes | STD, .025, .25, .50 |
| Oil Clearance | |
| Half Type | Identical halves |
| Material | F781 |
| Min. Std Shaft Size | 51,975 mm / 2.0463 in |
| Max. Std Shaft Size | 51,991 mm / 2.0469 in |
| Min. Std Tunnel Size | 56 mm / 2.2047 in |
| Max. Std Tunnel Size | 56,013 mm / 2.2052 in |
| Max Wall at Crown | 1,998 mm / 0.0787 in |
| Max Overall Length |
15,9 mm / 0.6260 in
|
| Notes | |
| Diagrams |
1580H
|
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.
| Vehicle / Engine Manufacturer | BMW |
|---|---|
| Product Brand | ACL |
| Part Type | Bearing |
| Manufacturer | BMW |
| Model | 3 Series |
| Variant | E90, E92, E93 |
| Engine | S65 |
| Lead Time | 3 - 7 Weeks |
From £2.12 £1.77
To £663.90 £553.25