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Venting Crank Case

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Venting Crank Case

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Old

Oct 21, 2007 | 07:30 PM

#1

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Launching!

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Venting Crank Case

I currently just vent both valve covers to a catch can, but since I have the motor out I was wonder if adding an LS6 valley would be worth it to help vent more? I have a T76/81AR and am going to try and get as much boost as I can.

Kane

Old

Oct 21, 2007 | 07:37 PM

#2

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your vent system should work, but you should have some vacume sucking in the catch can. I hooked my catch can up to the inlet on the turbo so it creates vacume.

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Oct 21, 2007 | 07:54 PM

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Can you swap that .81 for a .96?

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Oct 21, 2007 | 08:47 PM

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mike do you really think he needs to swap to the .96 since his is a rearmounted sts? He might have the correct ar?? I just know the rearmounts have a hard time spooling so they are run lower ar's than front mounts.

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Oct 21, 2007 | 10:15 PM

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Quote:

Originally Posted by 52172

mike do you really think he needs to swap to the .96 since his is a rearmounted sts? He might have the correct ar?? I just know the rearmounts have a hard time spooling so they are run lower ar's than front mounts.

Didn't realize it was a rearmount. Backpressure will be high either way then.

Edit: Yikes! A 408 with a T-76 rearmount .81 A/R. Backpressure will be through the roof!

Old

Oct 21, 2007 | 10:45 PM

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A LS6 valley won't hurt.

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Oct 22, 2007 | 09:56 AM

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i would get the ls6 valley...408 running more boost...a lil extra way to relieve engine pressure

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Old

Oct 22, 2007 | 12:53 PM

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I'm running total seal rings, it has pretty much eliminated any pressurization of the crank case I was getting.

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