Oil catch cans explained (Full Version)

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Oil catch cans explained

  

Dave01 -> Oil catch cans explained (9/21/2008 5:06:05 PM)

Hello, everyone,

I just updated my white paper regarding PCV valves, oil catch cans, and related info. You can view it by clicking on the following shortcut:

http://www.conceptualpolymer.com/PCV%20Line%20Oil%20Removal%20102.pdf

Please let me know if you have any questions.

Dave

  
Lee Willis -> RE: Oil catch cans explained (9/21/2008 5:28:01 PM)

I had a beautiful billet aluminum catch can on my blown 427 in the ''vette at anything more than 8 lbs it had a bit of blow-by and soe serious crankcase pressure.  The catch can worked well, though.  Could always tell how hard I had worked the motor for the week by how much was there when I checked Sunday morning.

Dave01 -> RE: Oil catch cans explained (9/21/2008 7:37:20 PM)

Lee,

As you may know, at WOT, flow into the engine via the fresh air line reverses so that "dirty" air flows into the airbox and into the intake. From what I understand, some of the more serious racers install a vacuum pump, although I don''t have any first-hand knowledge of the exact setup. I believe many supercharged setups include breather filters on the valve cover and/or oil fill cap. I prefer to trap the blowby oil/unburned fuel and particulates before they re-enter the engine. Certainly, there are a few ways to do this and each has at least some advantages and disadvantages.

Dave 

Lee Willis -> RE: Oil catch cans explained (9/22/2008 5:51:40 PM)

Eventually I installed a vacuum pump, and it added a net of about 15 HP by reducing pressure underneath the cylinders, but it was a pain, with lots ofproblems for the belts and all, and it was just a mm or so clearance with everything else under the hood oversize radiator, the Procharger, etc., so eventually I just gave up the power gain and removed it. 

Makes you appreciate factory engineering . . . .

  

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