regular vs breather catch can???
Thread Starter
Le Mans Master
Joined: Sep 2002
Posts: 6,569
Likes: 2,405
From: Redacted
regular vs breather catch can???
Im about to order a PCV catch can from forum vendor CCA, any opinions on the regular vs the vented can with the breather on top that eliminates the line running to the intake?? Ideally Id like to run the one with the breather and eliminate that line but wanted to know if there is any downside to doing that.
Thanks
Thanks
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
That doesn't appear to me to fit the bill as a PCV setup, i.e., positive crankcase ventilation. You are now relying on internal blowby pressure buildup to vent the crankcase at all RPM. I would think cold start condensation purge wouldn't be as effective either.
If it were my car, I would go with the non-vented and keep the connection to the intake.
If it were my car, I would go with the non-vented and keep the connection to the intake.
Safety Car
Joined: Jul 2004
Posts: 3,904
Likes: 29
From: Vancouver Washington
That doesn't appear to me to fit the bill as a PCV setup, i.e., positive crankcase ventilation. You are now relying on internal blowby pressure buildup to vent the crankcase at all RPM. I would think cold start condensation purge wouldn't be as effective either.
If it were my car, I would go with the non-vented and keep the connection to the intake.
If it were my car, I would go with the non-vented and keep the connection to the intake.
I'm running a conventional non-breather catch can from the valley to the PCV/Intake behind the throttle body
AND
A breather catch can off the passenger side valve cover, thereby deleting the tube to the front of the intake ahead of the throttle body.
This is on a track car and it seems to be working fine. Am I missing something (or will I be), just looking for your take on this set up.
Thanks
Doug - Last C5
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That doesn't appear to me to fit the bill as a PCV setup, i.e., positive crankcase ventilation. You are now relying on internal blowby pressure buildup to vent the crankcase at all RPM. I would think cold start condensation purge wouldn't be as effective either.
If it were my car, I would go with the non-vented and keep the connection to the intake.
If it were my car, I would go with the non-vented and keep the connection to the intake.
... i wouldn't run one with a breather either... the pcv also helps remove condensation as stated above and with this removed will cause sludge to build up faster than normal... i guess it may not be a problem if you change your oil like you do underwear but who really does that??
Melting Slicks
Joined: Nov 2008
Posts: 2,938
Likes: 65
From: Rochester Hills MI
That doesn't appear to me to fit the bill as a PCV setup, i.e., positive crankcase ventilation. You are now relying on internal blowby pressure buildup to vent the crankcase at all RPM. I would think cold start condensation purge wouldn't be as effective either.
If it were my car, I would go with the non-vented and keep the connection to the intake.
If it were my car, I would go with the non-vented and keep the connection to the intake.
use that intake vacuum to help out the pcv system. it doesn't make sense to remove something that gives the system an advantage. that's why they designed it the way they did.
Safety Car
Joined: May 2007
Posts: 4,812
Likes: 46
From: Taylorsville North Carolina
Vettenuts,
I'm running a conventional non-breather catch can from the valley to the PCV/Intake behind the throttle body
AND
A breather catch can off the passenger side valve cover, thereby deleting the tube to the front of the intake ahead of the throttle body.
This is on a track car and it seems to be working fine. Am I missing something (or will I be), just looking for your take on this set up.
Thanks
Doug - Last C5
I'm running a conventional non-breather catch can from the valley to the PCV/Intake behind the throttle body
AND
A breather catch can off the passenger side valve cover, thereby deleting the tube to the front of the intake ahead of the throttle body.
This is on a track car and it seems to be working fine. Am I missing something (or will I be), just looking for your take on this set up.
Thanks
Doug - Last C5
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