Product Description
Stage 2 Blueprinted oil pump with Billet gears
91.5-03 Miata MX5 1.6 B6
94-05 Miata MX5 1.8 BP
We start with a brand new oil pump. The pump is completely disassembled and the sintered (compressed metal particles) original gears are removed. The housing is then thoroughly inspected with a borescope, then machined for a set of wider US made, CMM-inspected 4140 billet gears. The wider gears increase oil volume. This volume increase is important for proper VVT function at high rpm with thinned, heated oil on track for example. Relief valve is shimmed to increase pressure from stock ~60psi to ~67psi.
How it’s built
-Pump is thoroughly cleaned by ultrasonic methods, air methods, and hand cleaning
-Flatness of the pump with the block checked
-Parallelness, Perpendicularity, and Concentricity of the oil pump boss checked
-Light port and polish to increase flow and reduce turbulence
-Each pump is tested for flow
Not compatible with 89-091-5 “short nose” 1.6 crank