The RB26-OPG throws away the weak asymmetrical rotor design and replaces it with Boundary’s own race-inspired symmetrical gear pattern. It is designed to be tighter sealing and created to be a higher volume so it will have a slight uptick in idle pressure and mid-range pressure up to the relief valve limit. It also has the designed crankshaft interface which reduces wear on the crank surfaces and eliminates the need for a crank spline drives. This is a huge benefit as you can simply put the gears in the housing and run them as a stock replacement.
Features:
- Mirror Finished and Surface Hardened
- Surface Ground gears for the ultimate in fitment and performance
- Indestructible chromoly core
- Inner and outer gear machined in matched sets
- Our own race-inspired gerotor design for flow and strength
- Each set hand, machine, and hardness inspected with Blueprinting Report
- Fits OEM Non N1 Housing
There is no comparison between billet steel used by Boundary and powdered steel used in OEM oil pumps. OEM oil pumps use a "cost efficient technique" called sintering because its cheap and produces tighter tolerances then casting. However powdered steel is even weaker then castings at only about 6000 PSI of strength. Good billet steels like the one that Boundary uses approach 110,000 PSI in yield strength or around 18 times stronger then OEM sintered steel. The material HT number designates what specific type of steel and heat treat we use. Every billet steel gear Boundary makes can be traced back to its original material specification sheet. Boundary worked along side with metalurgist to find the best combination of heat treat and steel grade to produce the best oil pump material on the market.
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