I actually screwd up a bit. It was suposed to be on the oppisite side of the BOV. Hard to explain but it's done.

The breather is there to allow the oil to drain in to the reservoir after the car has been shut off. If it wasn't there, the oil would just sit inside the bearing housing of the turbo. If you leave it sitting it eventually leaks past the seals in to the compressor housing. Doesn't damage the seals at all, it just seeps through overnigh. If the breather wasn't there, the air that the oil displases has no place to go.

 

function over form.

 

im worried that the breather might be a problem. ive never seen one used or heard of one being required on a reservoir. the oil will still drain without it.

 

I don't see why it would be a problem. I will change it thogh. There will be a small "press on" hose nipple on top there and I will run the breather filter elsewhere. Then it can easly be run to a catch can or any remote other location with a breather fliter.


The oil does drain to a degree, keep in mind that the air has to go somewhere. With the pump located between the turbo and engine it creates a perfect seel. The air has nowhere to go.

 

I cant wait till this is put on a few cars with some dyno sheets!

Are you becoming a vendor soon?

 

I am hoping that Don (MI 35th) will have some numbers by end of January for all of us. His motor is build and will be tuned by Hal @IP, the Precision 6262 should provide us with some very good numbers.




I am looking in to it. I have a few more ideas for the car too, so will see how it all goes.

 

Lots of people and articles that I have read recommend a breather on the reservior. It prevents the pump from creating a vaccum.

 

Are you a potential buyer of this kit? Seems like some of you are just busting his *****....

 

Is having a bit of vacuum on the oil return such a bad thing though?

 

That is ok Jay. I got thick enough skin to survive in the FI forum. I have good reasoning/pictures to counter any negativity. After all, I did desight the setup and there have been a couple of good suggestions in my first build thread.

I get PM's ofter people asking bout "how this works, how that works"...ect. I am more than happy to explain. Some questions make me thing "how does this guy put his pants on in the morning" but that is ok, we all have to start somewhere.


No, not at all. The probem occurs when the engine/pump have been shut down and the oil has no place to go. I actually tested how much vacuum the pump creates by putting a vacuum/boost gauge between the turbo drain and scavenge pump inlet. With the car running I had 15hg, (-15 on gauge) and with the car running it was about 10hg of vacuum.

This picture was take while I was trying to figure out why I have oil in the compressor hosing (no reservoir at this time). At first I figured that there was something wrong with the pump, the vacuum test eliminated that theory. All that was left is oil sittin in the turbo and no place to go with an air lock. That is when tig488 suggested a reservoir, and it made perfect sense.

 

woow. arent you afraid of hitting the turbocharger over a bump and crack goes your fabbed pipes? :/

 

do you just skim through threads or actually read them?

 

Thank you.

 

no im not.

and apparently you cant read or you dont pay attention, one of the two.

 

I dont think "some" vacuum is the concern, but if in some situations their is a good bit of vacuum and can prevent the turbo bearings from being fully lubricated.

 

it's not a hard concept. The breather also allows trapped air out of the resevour so oil can drain from the turbo down into the res. The when the pump isn't running it's a sealed tube so the air in the res has to go somewhere. If there isn't a vent then the air would stay in the res and the oil that was in the turbo wouldn't be able to drain down.

It's similar to the reason those cat and dog watering dishes work to only fill the outside dish so high yet keep a large quantity of water in the res.

 

After screwing around with some ideas for the turbo oil return lines I decided to do the proper way. -an fitting and stainless braid lines, goes something like this:











The two oil lines (supply and drain) will run here. Both are about 6" away from the exhaust and there is no need to heat wrap:



The oil drain will go to a JWT oil pan spacer, and it will be tapped for a -6 an line, right beside the oil filter. See picture below:



Also picked up a bunch of quick connect fittings and 100' of hose. These will be used for wastegate and BOV plumbing. They are very easy/quick to disconect/connect. All reusable and good for pressure (150psi) and vacuum.






No cheep rubber hoses here.

 

very nice!! =)

 

I would run the vent line off of the resivoir into the engine bay, no need for a breather then and no worry about potential water getting it.

 

more great work. if i still had my VQ id definitely be interested in your setup.