Catch Can Results - I'm AMAZED
07-22-2007, 01:20 AM
#1
Safety Car
Thread Starter
Catch Can Results - I'm AMAZED
I'm sort of amazed. I installed this can before going to Hallett today:
http://www.drysump.com/catchcan.htm
After the 4th fifteen minute session I opened the hood to cool the engine and saw oil all on/around the can. The can was full and overflowed. I drained OVER 24 OUNCES FROM THE CAN!!!!!! In less than 70 track miles I put this much to the can. I was amazed.
My install completely eliminated the intake from the crankcase ventilation "loop". I plugged the PCV system intake and return and have the valve cover air "draw" going to the can as well as the PCV valve.
Problem solved as long as I drain the can every 2-3 sessions.
I had 3/4 quart of oil going into the intake in less than 70 miles.
Rick
P.S. The hard part was finding a place to mount the can as it is large. Put in on the right frame rail right below the bumper cover. ONLY place I found it would fit.
P.S.S. It's now a fact in my mind those little "fancy" anodized catch cans provide nothing but bling. They are only a wide spot in the line. Taking the PCV into them provides no relief. The problem is on the PCV air intake line backflowing.
http://www.drysump.com/catchcan.htm
After the 4th fifteen minute session I opened the hood to cool the engine and saw oil all on/around the can. The can was full and overflowed. I drained OVER 24 OUNCES FROM THE CAN!!!!!! In less than 70 track miles I put this much to the can. I was amazed.
My install completely eliminated the intake from the crankcase ventilation "loop". I plugged the PCV system intake and return and have the valve cover air "draw" going to the can as well as the PCV valve.
Problem solved as long as I drain the can every 2-3 sessions.
I had 3/4 quart of oil going into the intake in less than 70 miles.
Rick
P.S. The hard part was finding a place to mount the can as it is large. Put in on the right frame rail right below the bumper cover. ONLY place I found it would fit.
P.S.S. It's now a fact in my mind those little "fancy" anodized catch cans provide nothing but bling. They are only a wide spot in the line. Taking the PCV into them provides no relief. The problem is on the PCV air intake line backflowing.
Last edited by rikhek; 08-16-2007 at 11:58 PM.
07-22-2007, 07:02 AM
#2
Safety Car
Member Since: Nov 2000
Location: Shenandoah Valley Virginia
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Wow -- the amount of oil you got in the can is excessive !! I have one of the small anodized cans and catch about 4 ounces over a 2 day event at VIR - 275 miles. You do not list your mods to the car in your signature. What do you have going on that is causing that much oil to accumulate in the intake ??
07-22-2007, 01:07 PM
#3
Safety Car
Thread Starter
Car is stock. Driven fairly hard with g forces causing backflow thru the "air in" hose on the PCV system. Car is driven at redline for 15 minute sessions.
Is your PCV valve hose the only line going to your can:
PCV Valve ----> Catch Can ----> Intake
This setup does not solve the oil to intake problem. The hose from the valve cover to the throttle body is the culprit.
Read this thread: http://forums.corvetteforum.com/show....php?t=1731285
Here's another good one: http://forums.corvetteforum.com/show...ight=catch+can
Rick
Is your PCV valve hose the only line going to your can:
PCV Valve ----> Catch Can ----> Intake
This setup does not solve the oil to intake problem. The hose from the valve cover to the throttle body is the culprit.
Read this thread: http://forums.corvetteforum.com/show....php?t=1731285
Here's another good one: http://forums.corvetteforum.com/show...ight=catch+can
Rick
Last edited by rikhek; 07-22-2007 at 01:20 PM.
