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Vent crankcase pressure?

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Old Jul 7, 2013 | 03:11 PM
  #1  
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whatcop?
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From: Daytona Beach/ Atlanta---- Good Ol' Florida Boy/ Georgia
Default Vent crankcase pressure?

I have a ZR1 and when I push it hard it push some oil out of the rear main seal. I'm assuming crankcase pressure is really high. What's the proper way to vent the system? I have one catch can on the car going from valley cover to behind the tb.

Also does this mean the seal is completely shot?
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Old Jul 7, 2013 | 03:43 PM
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RicK T
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I think you should talk to the guys in the ZR1 Forum as they've likely dealt with that before unless your car is unusual.

http://forums.corvetteforum.com/c6-corvette-zr1-136/
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Old Jul 7, 2013 | 05:31 PM
  #3  
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whatcop?
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From: Daytona Beach/ Atlanta---- Good Ol' Florida Boy/ Georgia
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Originally Posted by RicK T
I think you should talk to the guys in the ZR1 Forum as they've likely dealt with that before unless your car is unusual.

http://forums.corvetteforum.com/c6-corvette-zr1-136/
If I am correct only one guy has vented it due to the same issue and he wasn't very clear on how it was done.
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Old Jul 11, 2013 | 01:50 PM
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Paratrooper307
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From: Garner NC
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Definitely talk to the ZR1 guys. For an N/A car going turbo or S/C, many people use an oil cap breather and a check valve in the PCV hose. Some catch cans come with check valves as well. A ZR1 should already have a mechanism in place to prevent overpressurization of the crankcase.
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