Early owners of the Subaru BRZ, Scion FR-S, and Toyota GT86 who have modified the FA20 engine know that they can suffer similar issues to the EJ engines when pushed to their limit, which include low oil pressure and oil starvation.
After an in-depth analysis, King Engine Bearing Specialists found that a complete redesign of the factory FA20 main bearings would allow for increased oil delivery and reduced leakage. Some features of King’s FA20 bearings include SmartLug, which is a unique no-indent lug that preserves bearing surface and eliminates the main source of parting line oil leakage, increasing oil pressure.
Another cool feature of the bearings is the Tri-Metal pMax Black construction, which is a hardened lead-in-copper overlay with multi-layer Secure-Bond adhesion, providing 17 percent greater load capacity, and great structural integrity.
“When companies started to produce superchargers for the FA20, it increased harmonics, and caused the front main to fail,” explained King’s A.J. Berger-Orchowski. “The load capacity of the factory main bearings wasn’t supporting the load of the supercharger, where our Tri-Metal bearings compensate for the additional harmonics and provide increased oiling to the rod bearings.”
King also offers a rod bearing upgrade kit for the FA20, and includes some of the same features that their main bearing kit possesses, such as RadiaLock crush height, and Tri-Metal pMax Black construction. The RadiaLock is actually a neat feature, as it is an optimum crush height value that is determined by King’s ENSIM power modeling and analytical design software.
If you are a BRZ, FR-S, or a GT86 owner and don’t want to go the alternate route and perform a complicated engine swap for more power, take a look at these main and rod bearings for the FA20. Wouldn’t it be awesome to have a reliable FA engine that spanks V8s and straight-six engines? Check out King’s website for more information!