2nd Gen Most liked posts in thread: Vacuum Pump Delete & AOS

2013 Cadillac XTS Power Brake Booster Vacuum Pump - ACDelco 20914523 | StockWiseAuto

The part can be purchased at a dealer. You will need this switch... Remove it from the tubing housing and mount it to a chamber. It is adjustable!

http://static.summitracing.com/global/images/prod/mediumlarge/ssb-28146sw_w_ml.jpg

 

Just a few more pics

 

For the AOS, it is simply a test to see how well it works. The passenger side fitting from the valve cover was blocked by a threaded plug, thus making it completely ineffective for drawing crankcase pressure into the intake. The second fitting from the valve cover to the turbo inlet was also full of oil, leading me to remove the intercooler to flush out nearly a half pint of oil! After days of gravity draining, I washed it out and reinstalled it.

I am planning to drop the oil pan, tap a fitting so the AOS can drain directly into the engine if I cannot find an acceptable boss or plug already in the engine not being used. This is not my first rodeo but it is my first dance with the MINI Cooper, so we shall see how well she likes it!

 

I thought of that idea, but I really did not think it would be as effective as having a larger volume to separate the oil from the air vapor at low pressures. A compressor Air/Oil separator is under pressure and usually not designed for synthetic oils. The other issue is that using the Harbor Freight versions are simply not designed for high volume, low pressure. By having a small orifice, you increase the velocity of airflow thus helping to keep the oil in vapor suspended. By reducing the pressure and velocity across the medium in the separator, you do two things... first you drop pressure which helps liquids condense. This removes water vapor from the inside of the engine that collects as climates change and the engine warms up. This reduces rust contamination and oxidation from moisture. Secondly you increase the collection of the oil in the separator due to the dropping of the pressure.

Having large .75" inlets & outlets to the AOS with multiple layers of stainless steel mesh for the oil to be caught in conjunction with the 90-degree bend at the top really will keep the oil away from my intake and ultimately away from my intercooler.

If it all works the way I like, then I will get a KRU-82 Vodka Bottle and make a REAL NICE AOS system!
Wecome to KRÜ 82 | KRÜ 82 Vodka

thoughts?

:fingerscrossed:

 

Just an update on the progress. I finished the install of my Vacuum pump delete and AOS install. The car runs GREAT!! I cannot believe how quiet it is without the vacuum pump! The engine feels like it pulls hard, although I am sure it is just because the colder weather is helping to make more power.

Here is a link to the install overview video:
[ame="http://youtu.be/45YD3WFG7u0"]R56 MINI Cooper S Vacuum Pump Delete Mod & Air/Oil Separator - YouTube[/ame]

 

ostcount

 

Because I did not have a block of billet to begin with, so I made it from 0.25" sheet, machined and bolted together.

 

Just an update... I've logged over 200 miles around town with no issues, the brakes work great and the around town driving has been flawless. Tomorrow I will be driving to NOLA from Houston, so this will be the first road trip since the install. So far the in town mpg is up with a better throttle response and smoother idling too.

Stay tuned!