Oil Fill Breather
07-08-2015, 12:04 PM
#1
Burning Brakes
Thread Starter
Oil Fill Breather
Is there an alternative to the breather that goes into to oil fill hole? Seems I saw a cap with a tube that runs into a catch can. If there is an alternative let me know where I can purchase. Thanks 
07-08-2015, 01:15 PM
#2
Safety Car
Product ID: MBR0003-10AN
Valve Cover Adapter
07-08-2015, 08:54 PM
#3
Metco is 6 minutes from my house haha. I had never heard about them. I was looking at that adapter the other day on ebay, saw the part number you posted and figured id look it up. Was shocked when I saw the address lol. I guess I will be making a stop by tomorrow 
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07-09-2015, 07:32 PM
#4
Burning Brakes
Thread Starter
07-11-2015, 06:18 PM
#6
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St. Jude Donor '15
07-12-2015, 05:36 PM
#8
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St. Jude Donor '15
Pretty much. High cylinder pressure = more blowby
Need to get that blowby out or you'll pressurize the crankcase and can blow a main seal.
Some people just run an open breather on the oil fill cap.. and that can work. The problem I had with it was the smell. The fumes coming out of the open breather cap would get into the cabin through the vents near the windshield wipers and I hated it. Made my head spin.
The mightymouse setup fixed that 100% for me and I think it looks pretty slick.
Need to get that blowby out or you'll pressurize the crankcase and can blow a main seal.
Some people just run an open breather on the oil fill cap.. and that can work. The problem I had with it was the smell. The fumes coming out of the open breather cap would get into the cabin through the vents near the windshield wipers and I hated it. Made my head spin.
The mightymouse setup fixed that 100% for me and I think it looks pretty slick.
07-12-2015, 07:46 PM
#9
Safety Car
The oil cap breather was OK for me up to 11-14psi. Never had smell until I removed the PCV so I put it back. Once I got boost 14-17+psi then oil splatter becomes a problem where you want to contain it.
07-12-2015, 11:08 PM
#10
Melting Slicks
Thanks guys.
I see the mightymouse setup above, but is there a place I can get more info on it? I'll do some searching and see what I can come up with. Seems like I should have that at 12lbs of boost.
EDIT: Additional info for others curious about this setup
http://www.mightymousesolutions.com/#!mm-black/ca5m
https://www.corvetteforum.com/forums...an-review.html
I see the mightymouse setup above, but is there a place I can get more info on it? I'll do some searching and see what I can come up with. Seems like I should have that at 12lbs of boost.
EDIT: Additional info for others curious about this setup
http://www.mightymousesolutions.com/#!mm-black/ca5m
https://www.corvetteforum.com/forums...an-review.html
Last edited by Quickshift_C5; 07-12-2015 at 11:18 PM.
07-12-2015, 11:34 PM
#11
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St. Jude Donor '15
Oil Fill Breather
The owner is good to deal with too. Emailed me back even on holidays.
07-14-2015, 03:36 PM
#13
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St. Jude Donor '15
The PCV version has a PCV valve that closes under boost.
07-14-2015, 03:40 PM
#15
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St. Jude Donor '15
Good deal. The PCV version will have a 3/8" barb I believe for the clean side. Dirty side you can get -10AN. I got the same thing on mine.
07-14-2015, 08:19 PM
#17
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St. Jude Donor '15
What vacuum block are you using?
07-14-2015, 11:25 PM
#19
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St. Jude Donor '15
Oil Fill Breather
Thanks, will look into it. Was thinking of neatening up the two Hobbs switches and NPP exhaust vacuum connection.
07-15-2015, 12:29 AM
#20
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2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
I have one similar to that made by obx that has 6 ports on top, a plug on one end, and a hose barb on the other end to connect to a vacuum source... I put it behind my driver side fender so everything is out of the engine bay to cut down on the clutter