Why Upgrade to a Steel Housing?
Factory alloy oil pumps and billet aluminium oil pumps have a fatal flaw: thermal expansion. As your engine gets hot, the aluminium housing expands faster than the steel gears inside, increasing internal clearances and causing oil pressure to drop—exactly when you need it most. Additionally, under high RPM harmonics, alloy housings can flex, leading to cavitation and inconsistent flow.
We thoroughly test run every single pump across temperature and RPM. Manufacturing a steel pump is just the start. Our technicians manually port and smooth the oil galleries on every unit to remove casting flash and optimize flow dynamics. This attention to detail ensures maximum volumetric efficiency and reduces cavitation at high RPM. Our oil pump dyno lets us test every unit across temperature and RPM range before we send it out. We check for correct pressure regulation by the pressure relief valve and make sure the pump runs smoothly, quietly and in the target pressure zone.
The Atomic Solution
The Atomic Stainless Steel Oil Pump is the ultimate oiling solution for high-performance Barras. The rigid steel housing maintains consistent gear-to-housing clearance regardless of temperature, ensuring rock-solid oil pressure from cold start to the finish line. Each pump is expertly assembled and tested in-house using our race-proven Gas Nitrided Billet Gears and backing plate.
2. Expert Assembly & Testing
We don't rely on mass production lines. Every Atomic Steel Pump is hand-assembled by our engine builders.
- Nitrided Internals: Fitted with our signature Gas Nitrided Billet 4340 gears and Chromoly backing plate for unmatched wear resistance.
- Precision Clearance: We individually check and set the internal clearances to ensure the pump operates at peak efficiency.
- Bench Tested: Every unit is manually inspected and primed to guarantee it performs out of the box.