geerookie

Do you guys have the same problem with oil in the intake as those of us with LS1 and LS6 motors?
Is there a need for an oil catch can on these motors?

AU N EGL

LS3s need a dry sump

There is a thread on here about LS3 oiling issues

geerookie

Thanks for the headsup, I was aware of that issue. I have a friend who wants to put an oil catch can on his C6. I didn't think those motors had the same PCV issues that the LS6 and LS1 have. Therefore I was thinking the catch can was a waste of money.

Maynor29

Can't comment on street use by my track-only LS2 does get a ton of oil in in the intake under high-g, high rpm conditions.

I'm about to install a dual catch can setup to see if that resolves it until I go full dry sump for my winter upgrade.

John
M3 LS2

geerookie

That's what I was looking for. So it appears it may be a characteristic of the LSx motors in general. Of course one example doesn't make the case but we'll see.

J.R.

Install a catch can in LS1, LS2, LS3 and LS6 engines.

On LS1 engines use the LS6 valley cover.

Of course dry sump is always good but obviously expensive.

longdaddy

i've never had oil in the intake in my LS6. did have this in my LS1 car.

fred_S

I have an LS2 engine with Elite Engineering Catch can, and after a 5000 miles and two track days it was about half full with oil. So in my case it's catching oil like it is supposed to.

WNeal

I run the snot out of my LS2 and generally put about 1/2 quart over or a bit less in at the start. I have an OCC but do not get much in it at all.
When I put more than 1/2 quart over, then I get a full OCC and blowby.

It seems to do very well with just a bit over full, anything else is wasted into the OCC

geerookie

Thanks. This is helpful to know.

waddisme

My LS2 has a occ and and oil cap breather. I usually add up to an extra quart before each track day. Somewhere I lose about 1/2 a quart per track day, but occ only has 1-2 tblsp. When I removed intake a couple of months ago after 4 track days in 4 mos, it was clean as a whistle. Not sure where it goes, but at least it is not in the intake. I had the same set up on my sc LS6 and when it blew, there was just a small amount in the intake valley after a summer of track days, but occ would get 1/2 full after every other track day. HTH.