Boundary VQ-S1-VHR-SH1 VQ VHR Billet Oil Pump Assembly Stage 1

The Boundary VQ-S1-VHR-SH1 is a high-performance billet oil pump assembly engineered for the Nissan VQ VHR engine family. Built around the Nissan OEM housing, this assembly is upgraded with Boundary's signature mirror-finished billet oil pump gear set, delivering dramatically improved oil flow consistency and durability over the stock unit.

This pump has been validated across a wide range of extreme performance applications — from high-revving naturally aspirated builds to heavily boosted forced-induction setups. Boundary's meticulous assembly process ensures every unit leaves the facility performing to exacting standards.

Key Features:

• Retains the Nissan OEM pump housing for a direct-fit installation
• Mirror-finished billet oil pump gears for superior flow and reduced wear
• Relief valve settings optimized for high-RPM oil pressure demands
• Fully disassembled, ultrasonically cleaned, air-blasted, and hand-inspected during assembly
• Hand de-burred for smooth internal surfaces and reduced aeration
• Anaerobic sealant applied to critical areas to improve pump-up speed and minimize aeration
• Assembly lubricant applied to all critical surfaces for fast oil delivery at startup
• Blue-printed and issued with a specification sheet
• Validated in extreme horsepower naturally aspirated and turbocharged applications

The Boundary VQ-S1-VHR-SH1 is the ideal upgrade for any performance-focused VQ VHR build where reliable oiling at elevated RPM and power levels is essential.