Oil separator anyone?

[Paul Workman]

For those that might be interested, I picked up a very nice Moroso oil separator. It is a class act piece of equipment. It is a closed cylinder, billet aluminum, about 2.5" in diameter, x about 5" long, and comes with the inlet/outlet barb fittings at the top, the separator filtering (metal) is installed, and has a petcock and barb connector on the bottom for draining, and a billet aluminum mounting bracket. Very nice machine work.

Price was $150+tax; ready to install - just need hoses and done!

P

[Schrade]

If this oil isn't removed with this device, where does it end up?

I'm guessing it will foul somewhere?

[Dynomite]

Originally Posted by Schrade

If this oil isn't removed with this device, where does it end up?
I'm guessing it will foul somewhere?

It ends up in plenum and you burn it........but it gums up the intake more than necessary

-=Jeff=- was one of the first I think Oil Catch Can Photo

Here is what I used on both a 90' and 91'.

See Item #5 of LT5 Added Systems

See Details for Oil Catch Can Installation

The PCV hose connected under front of plenum (Vacuum source) is connected using SS braided hose to an Oil Catch Can external to the engine which Oil Catch Can is connected using SS braided hose to the dual PVC valves hard line located at the rear of the plenum. The Oil Catch Can is located on the drivers side inside wheel well (using a small channel ground and drilled to conform to the inside fender well as a spacer).

The Oil Catch Can used here is the Elite Engineering Oil Catch Can
(I use wing nuts for quick Catch Can Maintenance)

[Paul Workman]

Originally Posted by Schrade

If this oil isn't removed with this device, where does it end up?

I'm guessing it will foul somewhere?

Oil, not separated, makes its way to the combustion chambers, fouling plugs, carboning up the valves, contributing to knock, plugging the MAP sensor hose (leading to other seemingly disassociated issues with idle and AF mix...) Not good. The LT5 (among other open deck motors) is prone to a little more crankcase pressurization - hence oil blow-by - than some others (tho some LS motors also have oil separators for the same reason: keeping oil out of the cylinders).

I'll post a pic of the Moroso unit later.

P.

[Dynomite]

Originally Posted by Paul Workman

Oil, not separated, makes its way to the combustion chambers, fouling plugs, carboning up the valves, contributing to knock, plugging the MAP sensor hose (leading to other seemingly disassociated issues with idle and AF mix...) Not good. The LT5 (among other open deck motors) is prone to a little more crankcase pressurization - hence oil blow-by - than some others (tho some LS motors also have oil separators for the same reason: keeping oil out of the cylinders).

I'll post a pic of the Moroso unit later.

P.

Paul...last time I checked my Elite Oil Catch Can after several 1/4 mile runs and some additional miles (I think it makes a BIG difference if you stand on it) I had maybe 1/2 inch of oil in bottom of Oil Catch Can. So it works

[Racinfan83]

Two quick questions - does this setup eliminate the PCV valves - and if I don't run the car hard like some of you guys do (racing, etc), is it even necessary?
It does look cool - but I'm trying to keep the stock look for now...

[efnfast]

Is there a down side to doing this? Other than the fact that GM didn't do it originally.

[GOLDCYLON]

Originally Posted by efnfast

Is there a down side to doing this? Other than the fact that GM didn't do it originally.

in short no..

[GOLDCYLON]

Originally Posted by Racinfan83

Two quick questions - does this setup eliminate the PCV valves - and if I don't run the car hard like some of you guys do (racing, etc), is it even necessary?
It does look cool - but I'm trying to keep the stock look for now...

No it does not eliminate the PCV valves. It captures oil before it gets into the plenum etc.

[We Gone]

Could this be mounted with reg black line and down in the front say where the AIR pump is located for a more discreet setup? or does the distance (length of the lines effect the PCV system)