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Tech — Oil Control
Why does everyone hate the OEM RB oil pumps?
It's no secret that Nissan's RB engine gets a bad wrap for oiling issues. Some consider the OEM oil pump design to be the Achilles Heel of an otherwise fantastic engine. Why is this? It all starts with the crankshaft. RB oil pumps are driven by a flat section machined into the crankshaft that rotates the oil pumps' drive gear. Sounds pretty simple right? The crankshaft turns and so does the oil pump -- So what's the problem? The problem is that Nissan thought that it only needed about half the area of the crank that actually engages the oil...
Splash Plates - Why do you need them?
The Nissan RB series of engines are notorious for their oiling issues. Many consider this to be the Achilles heel of a otherwise fantastic engine. Besides the shortcomings of Nissan OEM oil pumps, another major oil issue is oil pooling in the head and excessive blow-by under high RPM. Oil catch cans & external head drains are a necessity whenever you are preparing an engine to see high RPM on a frequent basis. However, on hard track days, we still see that catch can filling up with oil. Enter splash plates. Designed to reduce breather issues by capturing the oil...
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