Air/Oil Separation

KillerBMotorsport · 04-25-2018, 01:51 PM

The goal of this product is simple, the removal of oil (in liquid or vapor form) from the vented crankcase gasses.

This is accomplished by using a design that has no restrictions; media or baffles, to reduce the flow potential of the crankcase and head vents. Our air oil separator differs from any other on the market. We use centrifugal force to pull oil and liquid vapors out of crankcase gases. This will insure the best possible separation available. Like a tornado, our system pulls vacuum from the center of the separator with the pressured gasses from the crankcase entering an obstruction free path maintaining the most velocity. This caused the heavy vapors to fall out of suspension. It functions with a vacuum source from the turbo inlet. Drain back design assures that any oil accumulation ends up in the oil pan, providing a consistent oil supply to the engine.

Six stainless steel bolts on the top, make it quick and easy for inspection and cleaning. It is not heated, and we see no reason to add unnecessary cooling/heating (weight, complexity, increased install time, and increase probability of something leaking). The Killer B Motorsport Air/Oil Separator should meet and exceeds your expectations of form and function. Our Air/Oil Separator is a product that enthusiasts have been waiting for.

KillerBMotorsport · 08-29-2019, 01:46 PM

Fitment announcement. We now have 05 to 09 Legacy GT fitment For our AOS.

KillerBMotorsport · 10-29-2019, 05:28 PM

And now SG5 and SG9 Forester fitment

KillerBMotorsport · 03-04-2020, 03:49 PM

Why Buy a Killer B AOS?

• No coolant lines to run.
• Average installation in 2 hours. Most competitors take ~5 hours.
• Less than 2 minutes to inspect and clean.
• Swirl Pot design similar to many exotic sports cars.
• Killer B Motorsport Lifetime Warranty.

But wait, there's more.... New lower pricing!

2002-2007 WRX/STi starting at $359

2008-2014 WRX and 2008+STi starting at $359

2015+ WRX & Forester XT starting at $339

Nickdee821 · 07-24-2020, 03:55 AM

I just received the AOS and was going to install it except I can't figure out where the tubes go. Please help me. Ill be back at it in 8 hours. Thank you.

KillerBMotorsport · 07-24-2020, 08:11 AM

Quote:

Originally Posted by Nickdee821

I just received the AOS and was going to install it except I can't figure out where the tubes go. Please help me. Ill be back at it in 8 hours. Thank you.

I don't know which one you've got, but they are all located on our website and have install instructions here as well

Killer B Motorsport AOS

murrdogg24 · 07-24-2020, 09:16 AM

Quote:

Originally Posted by KillerBMotorsport

I don't know which one you've got, but they are all located on our website and have install instructions here as well

Killer B Motorsport AOS

I think he wants you guys to come over and help install....tell him to supply the pizza and beer

KillerBMotorsport · 03-05-2020, 01:08 PM

Color choices coming soon :P

KillerBMotorsport · 03-07-2020, 11:19 PM

And here it is in black...

KillerBMotorsport · 03-25-2020, 05:48 PM

New Pricing announced today, starting at $339

KillerBMotorsport · 04-01-2020, 02:20 PM

TIG master Levi chipping away at the AOS backorder list!

Starting at $339

KillerBMotorsport · 04-07-2020, 07:21 PM

I've had some questions about the temperature of the unit in regards to condensation collecting on the inside of the unit. Is there more condensation because the unit isn't heated? No.

Our AOS internal temperature is generally ~240* during daily driving conditions; blowby gasses are H-O-T. Anyone want to guess what coolant temperatures are going into a "heated" AOS?

2020SeriesWhiteSTi · 04-09-2020, 04:24 PM

Always thought a heated can would be better.. until you made the point about blow-by gasses. Coolant shouldn't ever be much above 215 degrees F. Definitely questioning the need for coolant to an air oil separator now...

KillerBMotorsport · 04-09-2020, 05:29 PM

Quote:

Originally Posted by 2020SeriesWhiteSTi

Always thought a heated can would be better.. until you made the point about blow-by gasses. Coolant shouldn't ever be much above 215 degrees F. Definitely questioning the need for coolant to an air oil separator now...

We ran other AOS units for YEARS (heated and not) before we decided to make one of our own. We tested on 3 cars for over a year each before even talking about it to the public. We learned a LOT in that time.

If a heated unit is fed off the turbo coolant line (after it goes to the turbo), the coolant will be hotter than what you see for 'normal' coolant temps, but still not as high as the hotter blow-by gasses. So if that's true... A 'heated' unit is actually cooling the AOS which is counter to alllllll the marketing out there

2slofouru · 04-09-2020, 06:51 PM

Wouldn't the coolant help keep the can at least coolant temperature during the winter, so the really cold air on the outside of the can didn't cool it enough to cause the internal condensation? Seems like at times the pcv flow would be cooled enough by the inlet air (fresh air from the turbo inlet hose) being drawn through (during higher vacuum conditions) to drop the can's temperature substantially.

KillerBMotorsport · 04-09-2020, 08:25 PM

Quote:

Originally Posted by 2slofouru

Wouldn't the coolant help keep the can at least coolant temperature during the winter, so the really cold air on the outside of the can didn't cool it enough to cause the internal condensation?

No. The real problem with cold temps is the drain. No AOS, heated or not, can prevent this. The factory setup even recommends these lines be pulled, inspected and replaced as needed at XXXK miles. In colder environments, under the right conditions, OEM lines are known to clog. We offer a cold weather kit that uses products made for crankcase breathing in the aviation industry, so you know it has to work

Quote:

Originally Posted by 2slofouru

Seems like at times the pcv flow would be cooled enough by the inlet air (fresh air from the turbo inlet hose) being drawn through (during higher vacuum conditions) to drop the can's temperature substantially.

Yes, if you were using the factory PCV Valve. We do not. From the testing we did with different vacuum source locations, there was no upside to drawing vacuum through the intake manifold via the PCV valve. Our unit sources vacuum only through the turbo inlet. While the intake manifold does have significantly higher vacuum (low load only), but the PCV valve itself is a significant restriction, so actual crankcase vacuum is non-existent.

veebooster · 05-06-2020, 10:48 AM

"We offer a cold weather kit that uses products made for crankcase breathing in the aviation industry, so you know it has to work"

What exactly is this cold weather kit? I assume an insulated drain line? Thanks

KillerBMotorsport · 05-06-2020, 08:28 PM

Quote:

Originally Posted by veebooster

What exactly is this cold weather kit? I assume an insulated drain line?

Correct

veebooster · 05-07-2020, 10:19 AM

Quote:

Originally Posted by KillerBMotorsport

Correct

Thanks, I really like the simplicity of your design!

KillerBMotorsport · 05-07-2020, 06:45 PM

Quote:

Originally Posted by veebooster

Thanks, I really like the simplicity of your design!

Thank you. I'm a big fan of K.I.S.S. (Keep It Simple Stupid) and track guys generally are as well. Less things to fail.

Quote:

Originally Posted by Jesse

Is a tune required after install?

No sir.

A tune should only ever be necessary if you have a Vented system. Our setup can be run that way, but it is designed to run with vacuum supplied from the turbo inlet.

Jesse · 05-07-2020, 07:39 PM

Quote:

Originally Posted by KillerBMotorsport

No sir.

A tune should only ever be necessary if you have a Vented system. Our setup can be run that way, but it is designed to run with vacuum supplied from the turbo inlet.

Awesome.

Another q: any fitment interference with aftermarket TMIC, such as the PW Verticooler?

Jesse · 05-07-2020, 04:25 PM

Is a tune required after install?

stevo9494 · 09-03-2020, 11:30 PM

Hello,

Would these fit an SH forester XT?

KillerBMotorsport · 09-04-2020, 08:34 AM

Quote:

Originally Posted by stevo9494

Hello,

Would these fit an SH forester XT?

Yes they will! Same unit as 2008+ STi.

KillerBMotorsport · 11-17-2020, 03:55 PM

Air Oil Separator for GD, GR, FXT and VA chassis.

EASY INSTALL / EASY MAINTENANCE
At Killer B we are always striving to make improvements to the status quo.
Our design is easy to install and easy to clean.

Why Buy a Killer B AOS:

No coolant lines to run.
Average installation in 2 hours. Most competitors take 5.
Easy to inspect and clean.
Swirl Pot design similar to many exotic sports cars.
Killer B Motorsport Lifetime Warranty.

Click here to learn more about installing our AOS

2002 to 2007 WRX / STi Air Oil Separator
Now $359.00

Buy Now

2008 to 2014 WRX / STi Air Oil Separator
Now $359.00

Buy Now

2015 + FA20 WRX / FXT Air Oil Separator
Now $339.00

Buy Now

The goal of this product is simple. To function as its Air/Oil Separator description implies: the removal of oil, in liquid or vapor form, from the vented crankcase gasses. We do this using a swirl pot design found on many high performance exotic cars. Other Air Oil Separation designs use baffles to slow the flow of gasses while removing particulate. Our AOS removes particulate without reduction in flow making it more efficient at a wider range of flow.

04-25-2018, 01:51 PM	#1
KillerBMotorsport NASIOC Vendor Vendor Sales Rating: (43) Member#: 198281 Join Date: Dec 2008 Chapter/Region: MAIC Location: Virginia Vehicle: 2005 WRX/STi WRB of course	Air/Oil Separation - Starting at $339 The goal of this product is simple, the removal of oil (in liquid or vapor form) from the vented crankcase gasses. This is accomplished by using a design that has no restrictions; media or baffles, to reduce the flow potential of the crankcase and head vents. Our air oil separator differs from any other on the market. We use centrifugal force to pull oil and liquid vapors out of crankcase gases. This will insure the best possible separation available. Like a tornado, our system pulls vacuum from the center of the separator with the pressured gasses from the crankcase entering an obstruction free path maintaining the most velocity. This caused the heavy vapors to fall out of suspension. It functions with a vacuum source from the turbo inlet. Drain back design assures that any oil accumulation ends up in the oil pan, providing a consistent oil supply to the engine. Six stainless steel bolts on the top, make it quick and easy for inspection and cleaning. It is not heated, and we see no reason to add unnecessary cooling/heating (weight, complexity, increased install time, and increase probability of something leaking). The Killer B Motorsport Air/Oil Separator should meet and exceeds your expectations of form and function. Our Air/Oil Separator is a product that enthusiasts have been waiting for. __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. vs. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. FA20 WRX Ultimate Oil Pickup, Now Available! Improving Pressure Consistency and AVCS Synchronization Last edited by KillerBMotorsport; 03-25-2020 at 05:47 PM.

08-29-2019, 01:46 PM	#2
KillerBMotorsport NASIOC Vendor Vendor Sales Rating: (43) Member#: 198281 Join Date: Dec 2008 Chapter/Region: MAIC Location: Virginia Vehicle: 2005 WRX/STi WRB of course	Fitment announcement. We now have 05 to 09 Legacy GT fitment For our AOS. __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. vs. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. FA20 WRX Ultimate Oil Pickup, Now Available! Improving Pressure Consistency and AVCS Synchronization

10-29-2019, 05:28 PM	#3
KillerBMotorsport NASIOC Vendor Vendor Sales Rating: (43) Member#: 198281 Join Date: Dec 2008 Chapter/Region: MAIC Location: Virginia Vehicle: 2005 WRX/STi WRB of course	And now SG5 and SG9 Forester fitment __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. vs. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. FA20 WRX Ultimate Oil Pickup, Now Available! Improving Pressure Consistency and AVCS Synchronization

03-04-2020, 03:49 PM	#4
KillerBMotorsport NASIOC Vendor Vendor Sales Rating: (43) Member#: 198281 Join Date: Dec 2008 Chapter/Region: MAIC Location: Virginia Vehicle: 2005 WRX/STi WRB of course	Why Buy a Killer B AOS? • No coolant lines to run. • Average installation in 2 hours. Most competitors take ~5 hours. • Less than 2 minutes to inspect and clean. • Swirl Pot design similar to many exotic sports cars. • Killer B Motorsport Lifetime Warranty. But wait, there's more.... New lower pricing! 2002-2007 WRX/STi starting at $359 2008-2014 WRX and 2008+STi starting at $359 2015+ WRX & Forester XT starting at $339 __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. vs. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. FA20 WRX Ultimate Oil Pickup, Now Available! Improving Pressure Consistency and AVCS Synchronization

07-24-2020, 03:55 AM	#5
Nickdee821 Scooby Newbie Member Sales Rating: (0) Member#: 516981 Join Date: Jul 2020	2010 wrx I just received the AOS and was going to install it except I can't figure out where the tubes go. Please help me. Ill be back at it in 8 hours. Thank you.

03-05-2020, 01:08 PM	#8
KillerBMotorsport NASIOC Vendor Vendor Sales Rating: (43) Member#: 198281 Join Date: Dec 2008 Chapter/Region: MAIC Location: Virginia Vehicle: 2005 WRX/STi WRB of course	Color choices coming soon :P __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. vs. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. FA20 WRX Ultimate Oil Pickup, Now Available! Improving Pressure Consistency and AVCS Synchronization

03-07-2020, 11:19 PM	#9
KillerBMotorsport NASIOC Vendor Vendor Sales Rating: (43) Member#: 198281 Join Date: Dec 2008 Chapter/Region: MAIC Location: Virginia Vehicle: 2005 WRX/STi WRB of course	And here it is in black... __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. vs. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. FA20 WRX Ultimate Oil Pickup, Now Available! Improving Pressure Consistency and AVCS Synchronization

03-25-2020, 05:48 PM	#10
KillerBMotorsport NASIOC Vendor Vendor Sales Rating: (43) Member#: 198281 Join Date: Dec 2008 Chapter/Region: MAIC Location: Virginia Vehicle: 2005 WRX/STi WRB of course	New Pricing announced today, starting at $339 __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. vs. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. FA20 WRX Ultimate Oil Pickup, Now Available! Improving Pressure Consistency and AVCS Synchronization

04-01-2020, 02:20 PM	#11
KillerBMotorsport NASIOC Vendor Vendor Sales Rating: (43) Member#: 198281 Join Date: Dec 2008 Chapter/Region: MAIC Location: Virginia Vehicle: 2005 WRX/STi WRB of course	TIG master Levi chipping away at the AOS backorder list! Starting at $339 __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. vs. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. FA20 WRX Ultimate Oil Pickup, Now Available! Improving Pressure Consistency and AVCS Synchronization

04-07-2020, 07:21 PM	#12
KillerBMotorsport NASIOC Vendor Vendor Sales Rating: (43) Member#: 198281 Join Date: Dec 2008 Chapter/Region: MAIC Location: Virginia Vehicle: 2005 WRX/STi WRB of course	I've had some questions about the temperature of the unit in regards to condensation collecting on the inside of the unit. Is there more condensation because the unit isn't heated? No. Our AOS internal temperature is generally ~240* during daily driving conditions; blowby gasses are H-O-T. Anyone want to guess what coolant temperatures are going into a "heated" AOS? __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. vs. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. FA20 WRX Ultimate Oil Pickup, Now Available! Improving Pressure Consistency and AVCS Synchronization

04-09-2020, 04:24 PM	#13
2020SeriesWhiteSTi Scooby Newbie Member Sales Rating: (0) Member#: 513289 Join Date: Apr 2020	Always thought a heated can would be better.. until you made the point about blow-by gasses. Coolant shouldn't ever be much above 215 degrees F. Definitely questioning the need for coolant to an air oil separator now...

04-09-2020, 06:51 PM	#15
2slofouru NASIOC Supporter Member Sales Rating: (17) Member#: 90539 Join Date: Jul 2005 Chapter/Region: South East Location: SWLA Vehicle: My BOV goes COVFEFE!	Wouldn't the coolant help keep the can at least coolant temperature during the winter, so the really cold air on the outside of the can didn't cool it enough to cause the internal condensation? Seems like at times the pcv flow would be cooled enough by the inlet air (fresh air from the turbo inlet hose) being drawn through (during higher vacuum conditions) to drop the can's temperature substantially.

05-06-2020, 10:48 AM	#17
veebooster Scooby Newbie Member Sales Rating: (0) Member#: 510831 Join Date: Jan 2020 Chapter/Region: E. Canada Location: Ontario Vehicle: 2016 WRX	"We offer a cold weather kit that uses products made for crankcase breathing in the aviation industry, so you know it has to work" What exactly is this cold weather kit? I assume an insulated drain line? Thanks

05-07-2020, 04:25 PM	#22
Jesse Scooby Specialist Member Sales Rating: (10) Member#: 100890 Join Date: Nov 2005 Chapter/Region: RMIC Location: Colorado Vehicle: 2020 WRX WRB	Is a tune required after install?

09-03-2020, 11:30 PM	#23
stevo9494 Scooby Newbie Member Sales Rating: (1) Member#: 514134 Join Date: Apr 2020	Hello, Would these fit an SH forester XT?

11-17-2020, 03:55 PM	#25
KillerBMotorsport NASIOC Vendor Vendor Sales Rating: (43) Member#: 198281 Join Date: Dec 2008 Chapter/Region: MAIC Location: Virginia Vehicle: 2005 WRX/STi WRB of course	Air Oil Separator for GD, GR, FXT and VA chassis. EASY INSTALL / EASY MAINTENANCE At Killer B we are always striving to make improvements to the status quo. Our design is easy to install and easy to clean. Why Buy a Killer B AOS: No coolant lines to run. Average installation in 2 hours. Most competitors take 5. Easy to inspect and clean. Swirl Pot design similar to many exotic sports cars. Killer B Motorsport Lifetime Warranty. Click here to learn more about installing our AOS 2002 to 2007 WRX / STi Air Oil Separator Now $359.00 Buy Now 2008 to 2014 WRX / STi Air Oil Separator Now $359.00 Buy Now 2015 + FA20 WRX / FXT Air Oil Separator Now $339.00 Buy Now The goal of this product is simple. To function as its Air/Oil Separator description implies: the removal of oil, in liquid or vapor form, from the vented crankcase gasses. We do this using a swirl pot design found on many high performance exotic cars. Other Air Oil Separation designs use baffles to slow the flow of gasses while removing particulate. Our AOS removes particulate without reduction in flow making it more efficient at a wider range of flow. __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. vs. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. FA20 WRX Ultimate Oil Pickup, Now Available! Improving Pressure Consistency and AVCS Synchronization

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