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Old 06-25-2009, 10:47 AM   #13
Scooby Specialist
Member#: 106470
Join Date: Feb 2006
Chapter/Region: NWIC
Location: Kent WA
2004 GT-1 ICSCC #9


Originally Posted by dunk View Post
How long are the lines from the heads to the Catch can? How big is the line? I run my lines all the way up to the firewall to stop the oil pushing out of the heads under cornering forces. If you don't have some rise in the line you'll push out large amounts of oil.


The cans are located in the OEM battery location. I used the stock metal line in front of the intercooler and patched right after it. So the lines come out of the valve cover vertically, go through the OE metal black line, and then wrap all the way over to the battery location. 1/2" ID hose the whole way.

Here's a couple of pictures of the setup

Originally Posted by Storm View Post
Something is overpressurizing the block and pushing the oil out the valvecovers. Unfortunately, my money is on the ringlands. They will let the chambers get oiled up and cause a smoky startup....but the plugs will also show signs of it when pulled. When you go to do your compression/leakdown test, see if your plugs still look as clean as the other set you pulled out.

Good luck with it anyway.....hope it's something minimal.


I broke a ringland last fall down at Reno-Fernley Raceway. And it would smoke on startup, but not nearly this bad. It would also do the smoke stack out of the oil filler tube. I guess I should check that tonight also.

What is the path from the crankcase to the valve cover that would allow this much oil to blow into one of the cans, but not the other? I can see if a(or multiple) ringland(s) were broken how it would pressurize the crank case... but I just can't visualize how that would pressurize the valve cover/cam area without getting a bunch of blow by past the PCV also.
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