internal pressure question?
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From: Montreal, Quebec, Canada
internal pressure question?
I have tried different set up of catch can... I just put 2 welds bungs in front of VC to solve the puking prob I had witch my current set up.
My current set up is a bigger weld fitting on top of oil separator where the pcv use to plug and route to my catch can... This set up use to overfill my catchcan quite fast so that's why I decided to go with the 2 front bung in VC to releive internal pressure.
But since I still have my VC in hand, before putting everything back together and plugging the oil separator hole behind the block, I was wondering if it would be a good idea to route the line I had from the oil separator (originaly pcv) to the fitting that sit behind the VC (the oem one that go to intake). I though that this would be a nice way to let the block breathe from the back too. The pressure found down the block would be brought to the VC and then vent to the catch can from the 2 bung I would now have.
My only concern would be the oil excess that originally overfill my catch tank... That oil excess would now be route to VC... Would this bring too much oil in the head or would it actually be a good thing to get more oil route to the head?
block is b18c1 with type R internal (pistons, cams, valvetrain)
My current set up is a bigger weld fitting on top of oil separator where the pcv use to plug and route to my catch can... This set up use to overfill my catchcan quite fast so that's why I decided to go with the 2 front bung in VC to releive internal pressure.
But since I still have my VC in hand, before putting everything back together and plugging the oil separator hole behind the block, I was wondering if it would be a good idea to route the line I had from the oil separator (originaly pcv) to the fitting that sit behind the VC (the oem one that go to intake). I though that this would be a nice way to let the block breathe from the back too. The pressure found down the block would be brought to the VC and then vent to the catch can from the 2 bung I would now have.
My only concern would be the oil excess that originally overfill my catch tank... That oil excess would now be route to VC... Would this bring too much oil in the head or would it actually be a good thing to get more oil route to the head?
block is b18c1 with type R internal (pistons, cams, valvetrain)
Last edited by maxogsr; Jul 20, 2010 at 06:04 AM.
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Joined: Jul 2006
Posts: 4,370
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From: where cars dont get stolen, NY
Re: internal pressure question?
most likely, you just needed a drain back on the block vent to allow any oil to flow back. after running my last motor for 4 years, and starting with a vented vc i saw the most benefit from venting the block.
i would not use the existing vc port for anything, because it is meant to be a vent.
what block do you have?
i would not use the existing vc port for anything, because it is meant to be a vent.
what block do you have?
Honda-Tech Member
Joined: Jul 2006
Posts: 4,370
Likes: 8
From: where cars dont get stolen, NY
Re: internal pressure question?
i believe your block has to ports on the back that can e removed with a large hex bit. you can then order some oem honda nipple that screw in.
you can then either use one as a flow out of the block then attach the other to the bottom of the can and use as a drain back.
or when i had mine, i ran both hoses out of the block to the side of the can, then a hose out of the bottom of the can which was t's into one of the feeds as a drainback.
it may also help if your using a vented can, as a sealed will hold pressure and cause overflow issues.
you can then either use one as a flow out of the block then attach the other to the bottom of the can and use as a drain back.
or when i had mine, i ran both hoses out of the block to the side of the can, then a hose out of the bottom of the can which was t's into one of the feeds as a drainback.
it may also help if your using a vented can, as a sealed will hold pressure and cause overflow issues.
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