KA Pressure in head, heavy smoke from exhaust

[Hoffman5982]

I previously had it with the pcv and valve cover to catch can, and had the can vented. Everyone told me this was wrong

[hanzbrady]

Originally Posted by Hoffman5982

I previously had it with the pcv and valve cover to catch can, and had the can vented. Everyone told me this was wrong

It's the way it's done on every race car I work on which is more than average lol. My SR also doesn't have a PCV that just a straight nipple.

The only stuff that finds its way into the can is condensed water vapor, fuel vapor and a little bit of oil.

But this way my car doesn't smoke and also doesn't have all of that junk ending up in the combustion chamber.

[Hoffman5982]

Originally Posted by KAT-PWR

You're doing something wrong. The KA valve cover shouldn't have the sr valve cover pcv in it. It should be ran to a vented can.

What did you do with the PCV valve on the timing cover? Lower passenger side of engine. What did you do with the factory pcv tree that runs into the runners?

To test run a hose from the pcv and valve covers into a big jug with the top open (like a Gatorade 2L bottle)

Is your catch can full of oil? What about the turbo intake?

Sorry, I wasn't clear. I took the SR pcv valve and put it in place of the stock one on the timing cover. The valve cover just has the straight nipple on the valve cover which is run to the catch can. The runner ports are capped off. The catch can is not full of oil.

Originally Posted by hanzbrady

It's the way it's done on every race car I work on which is more than average lol. My SR also doesn't have a PCV that just a straight nipple.

The only stuff that finds its way into the can is condensed water vapor, fuel vapor and a little bit of oil.

But this way my car doesn't smoke and also doesn't have all of that junk ending up in the combustion chamber.

See that's how I had mine. I did a lot of reading and everyone said the best way is to have the line running to the preturbo so that a vacuum is created to actually pull the vapors from the pcv. And with the air/oil separator oil won't make its way back into the intake. Should I just go back to my old setup? I still don't understand why there's pressure in the head like there is, or am I just wrong and that's normal?