In circuit running or drag racing, lubrication trouble is one of the major reasons for the blowing of RB26DETT engine. The main reason for this trouble is worn out bearing metal from decreasing oil pressure, caused by insufficient amount or pressure of factory oil pump for tuned high RPM and high out put engines.
Also, since factory pump gear is made of weak sintered metal, it is not rare that broken gear at high RPM damages entire expensive engine block instantly. TOMEI RB26 oversize oil pump applied extra large pump gear that is made of high-strength material to let it breath enough amount and pressure of oil to the tuned engine and secures strength with its original design.
Features
- Standard flow rate at 6000 RPM is 47L, Tomei increases rate to 56L
- Compatible with the standard oil pan, but Tomei recommends a larger capacity oil pan is used with this oil pump.
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Tomei was founded in 1968 by members of the Johoku Riders motorcycle club, among them Nissan works driver Seiichi Suzuki. It began as a racing engine builder for Nissan engines only, and its work on the Nissan L-series and later the RB and SR engines made its name. The company took the name Tomei Powered when it moved to Machida, Tokyo, in 1994.
Tomei now develops parts for many Japanese engines, Mitsubishi, Subaru and Toyota as well as Nissan: camshafts, valve train parts, pistons, connecting rods and crankshafts, complete engines, and exhaust systems such as its well-known Expreme titanium range.











