Boundary BP-OPG-NON-VVT-M Billet Oil Pump Gear Mazda Miata BP Non-VVT MartenWear Treated

The Boundary BP-OPG-NON-VVT-M is a high-performance billet oil pump gear designed as a direct replacement for factory sintered gears in Mazda Miata BP engines with non-VVT (Variable Valve Timing) configuration. This precision-engineered gear set dramatically improves oil pump reliability and performance for both street and racing applications.

Premium Construction and Manufacturing:

• 100% manufactured in Boundary's Dallas, Texas production facility
• Machined from 4140 chromoly billet steel for superior strength (110,000 PSI yield strength vs. 6,000 PSI in OEM powdered metal gears)
• MartenWear dual-stage heat treatment process for enhanced wear resistance and durability
• ColdFlow surface hardening process applied after machining
• Mirror finish surface grinding for optimal fitment and performance
• Each gear set individually inspected by hand and machine with blueprinting report

Performance Benefits:

• Stable operation over 10,000 RPM
• Proven performance in engines producing over 1,000 wheel horsepower
• Higher oil flow efficiency with reduced friction
• Increased oil pressure compared to factory gears
• Eliminates risk of factory oil pump gear failure at high RPM
• Direct bolt-in replacement for OEM oil pump housing

Application:

• Mazda Miata 1991.5-2000 (Non-VVT, long nose crankshaft)
• Ford Escort GT BP engines
• Not compatible with 1989-1992 short nose crankshaft or 2001-2005 VVT engines

This gear set represents a critical upgrade for high-performance and turbocharged BP engines where oil system reliability is paramount. The inner and outer gears are machined as matched sets using Boundary's proprietary gerotor design optimized for both flow and strength.