Projected horsepower
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From: Louisiana
Transmission eta Wednesday, should be able to get in it next weekend. How are you guys running catch cans with 5.3 ? Mine is ran off the the 2 valve cover ports and nothing goes into my catch can. Also I had my oil cap had one with an air filter on it at the time and I added a normal cap that in a sense closes the crank case. Should I have done that or left the filter?
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From: Louisiana
How would I do that though? My valley cover doesn't have a port on it. I just have the 2 ports on the valve cover. 1 is going in and the other going out. Technically nothing is venting the way I have it that's why I ask about the air filter on oil cap.
For your setup, you probably don’t need to.
I removed the valley cover, drilled and tapped a hole for 1/8npt and screwed in a 1 bar sensor. It’s wired in to my Dominator.
I removed the valley cover, drilled and tapped a hole for 1/8npt and screwed in a 1 bar sensor. It’s wired in to my Dominator.
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From: Louisiana
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Verdad Gallardo No sir. No need to over think your setup.
a line from each valve cover to the catch can is good. And no vent on the oil fill cap.
the only reason I monitor case pressure is because I’m an all out race car build pushing it to the limits.
a line from each valve cover to the catch can is good. And no vent on the oil fill cap.
the only reason I monitor case pressure is because I’m an all out race car build pushing it to the limits.
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From: Louisiana
ok awesome so technically nothing is vented that way, that's okay?
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You EITHER run a catch can with no vent and such it back into the intake, or you vent your valve covers and don't need a catch can. Sole complain they smell oil vapors when they vent. I've never noticed that so it's really personal preference.
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From: Louisiana
A 3 port catch can would give you 2 in's and 1 out. Otherwise you have to tie the 2 input lines together into a single in side. You can have a line out of the catch can into the intake or a line out of the catch can to a breather.
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that's what I needed to know, I'll t the two lines together then and get an npt fitting and run the out side into my distribution block.
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Gotta be careful using the stock Pcv nipple DS rear as the is only a small hole inside ( can't remember the actual size ) what I've done is drill that out with the largest bit the will fit inside the nipple then fit a gen1 sbc type pcv valve using a couple pieces of different size hose - easy. Have to be very careful drilling as you can damage the baffling when it goes through the restriction. 3 port catch can with 2 check valves , -6 hose . Every body is saying-10 hose and vented can or fill port but this has been working great . Could be some air filter restriction is giving a vacuum pull on both covers when in boost . Lot of variables, power level and ring gap have got to be big factors
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From: Louisiana
Gotta be careful using the stock Pcv nipple DS rear as the is only a small hole inside ( can't remember the actual size ) what I've done is drill that out with the largest bit the will fit inside the nipple then fit a gen1 sbc type pcv valve using a couple pieces of different size hose - easy. Have to be very careful drilling as you can damage the baffling when it goes through the restriction. 3 port catch can with 2 check valves , -6 hose . Every body is saying-10 hose and vented can or fill port but this has been working great . Could be some air filter restriction is giving a vacuum pull on both covers when in boost . Lot of variables, power level and ring gap have got to be big factors
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You must have the early style VC that had a valve built into the DS cover , haven't actually seen 1 but have heard of them . PS cover should go pre turbo, post filter ( supplies clean air into engine during non boost use ) can also vent pressure during boost , no check valve required. DS cover into catch can , out of catch can to pcv port at top of manifold with check valve to prevent boost going into can . I have another out on my can that goes pre turbo also and with some air filter restriction provides a vacuum source during boost , it also has a check valve to prevent it from being a huge vacuum leak into the pcv system. If you tee the 2 valve cover lines together you will not have a clean air in , bad air / gases out. If your can has only 2 ports I would run the PS cover hose to a remote mounted filter that can provide clean air in and vent any pressure. Maybe fender or fire wall mounted, above the height of the cover