How Can An Air Oil Separator Improve Performance?

November 11, 2024 by
How Can An Air Oil Separator Improve Performance?
Eric Hazen

If you’re thinking about performance upgrades, you need to consider all of your vehicle’s systems. Although crankcase ventilation and air intake may not be first on your list, they deserve a look, as issues in those areas can degrade performance over time. An air oil separator might be just what you need to help your engine deliver consistent power. Learn more about this budget-friendly component, how it works, and why it’s important.

How Do Air Oil Separators (AOS) Work?

Inside of air oil separator for 86 platform models

The 5-micron filters, baffling, and stainless mesh inside this AOS help remove oil from crankcase air.

Air oil separators essentially have one job–to remove oil from the crankcase ventilation system so it doesn’t coat your intake manifold, throttle body, intake valves, and other components. The AOS is a relatively simple device that uses coalescent filters, baffling, and stainless mesh to filter the crankcase air. As the filters wick oil from the vapor, cleaner air is returned to the intake. Depending on the model, oil can then be drained from the AOS or automatically returned to the engine.

What Are The Benefits Of Installing An AOS?

Air oil separator installed on Ford Mustang Shelby GT350

An air oil separator like this one on a Ford Mustang Shelby GT350 will help minimize power loss and lower carbon build-up.

If you’re looking for an affordable, easy-to-install upgrade that can make a difference over the long haul, an air oil separator is an excellent choice. Here are some benefits of using an AOS:

  • Reduces the amount of oil that enters the intake
  • Minimizes power loss that can occur due to reduced octane
  • Lowers the amount of carbon build-up on intake valves
  • Reduces the chance of engine knock due to lowered octane

Follow all instructions when installing an AOS, as additional modifications may be needed. For example, to install the Verus Engineering AOS on the MK5 Toyota Supra, a resonator delete kit must be connected whenever the factory airbox is used. Other options, like heat shields, are optional but recommended. 

A look under the hood of an MK5 Toyota Supra with a Verus Engineering air oil separator, resonator delete, and turbo heat shield.

Why Get An AOS From Verus?

Experts in automotive performance upgrades, Verus Engineering is skilled in all vehicle systems and designs an array of components, from clutch forks to downforce-generating rear wings. Our air oil separators offer unprecedented air filtration through four 5-micron coalescent filters, baffling, and stainless mesh. The large-diameter hose minimizes pressure drop, and the silicone construction provides ease of installation and durability. Find the right AOS kit for your model by browsing our online store. Remember that Verus offers everything you need for an efficient installation, including hardware, detailed instructions, and even how-to videos.

Purchase All Your Performance Parts From Verus

If you want the best performance parts for your vehicle, turn to the aftermarket experts from Verus Engineering. We believe in a meticulous design process using advanced tools like computational fluid dynamics (CFD) software and 3D scanning. But our work doesn’t stop there. We perform real-world testing on our products before making them available to you. Shop our online store today and take your vehicle’s performance to the next level. 

How Can An Air Oil Separator Improve Performance?
Eric Hazen November 11, 2024
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