Which flows oil better? I want to say holes but louvered filters seem to have more louvers than a filter with holes.
Louvers VS Holes
- Thread starter BlueOvalFitter
- Start date
The one with the most area flows more. If louvers are barely opened up, then they won't flow as well. Always visually inspect louvers before buying. If louvers are opened up well, then there should be more flow area than the typical hole-y center tube
The ecore plastic cage
It seems that louvers are harder to make properly than holes. There are many filters posted on BITOG where the louvers aren't completely opened up.
Hastings/Baldwin is the only one that seems to know how to properly make a slotted center tube, but their louvers are formed differently.So the Hastings/Baldwin louvers are better than round holes, but most other louvers are inferior.
It seems that louvers are harder to make properly than holes. There are many filters posted on BITOG where the louvers aren't completely opened up.
Hastings/Baldwin is the only one that seems to know how to properly make a slotted center tube, but their louvers are formed differently.So the Hastings/Baldwin louvers are better than round holes, but most other louvers are inferior.
4WD
$50 site donor 2024
They way I fixed mine was to cut it open - remove the media - flip over the tube and look into the well opened louvers from the other direction.
Last edited:
Originally Posted by bbhero
It's the holy war
Now this is a funny reply, unlike a sarcastic one.
It's the holy war
Now this is a funny reply, unlike a sarcastic one.
I had to go to WM earlier today to pick up some meds. I rode over into the filter section to look at a M1 209 and 211. There were no 211's. The 209A had louvers compared to the filter I cut open, which had holes. Also,, I couldn't tell if the 209A had a base end bypass.
.
Originally Posted by dlundblad
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
All else being equal,
Louvers = less turbulence = better flow ???
Louvers = less turbulence = better flow ???
Originally Posted by ZeeOSix
Originally Posted by dlundblad
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
But, how can you determine if the louvers are closed? I'm thinking an oil pressure gauge entering and leaving? But, how many people will have this set up? And, how many people stop to wonder if the louvers are closed? How many consumers know that an oil filter has louvers, holes, squares, triangles, etc., in an oil filter?
Originally Posted by dlundblad
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
But, how can you determine if the louvers are closed? I'm thinking an oil pressure gauge entering and leaving? But, how many people will have this set up? And, how many people stop to wonder if the louvers are closed? How many consumers know that an oil filter has louvers, holes, squares, triangles, etc., in an oil filter?
Virginia is for Louvers.
Originally Posted by ZeeOSix
Originally Posted by dlundblad
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
They will flow the same because of the bypass valve.
Originally Posted by dlundblad
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
They will flow the same because of the bypass valve.
Originally Posted by BlueOvalFitter
Originally Posted by ZeeOSix
Originally Posted by dlundblad
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
But, how can you determine if the louvers are closed? I'm thinking an oil pressure gauge entering and leaving? But, how many people will have this set up? And, how many people stop to wonder if the louvers are closed? How many consumers know that an oil filter has louvers, holes, squares, triangles, etc., in an oil filter?
Use a flashlight and your eyes. There's been photos posted many times showing good vs bad formed louvers.
Originally Posted by ZeeOSix
Originally Posted by dlundblad
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
But, how can you determine if the louvers are closed? I'm thinking an oil pressure gauge entering and leaving? But, how many people will have this set up? And, how many people stop to wonder if the louvers are closed? How many consumers know that an oil filter has louvers, holes, squares, triangles, etc., in an oil filter?
Use a flashlight and your eyes. There's been photos posted many times showing good vs bad formed louvers.
Originally Posted by CT8
Originally Posted by ZeeOSix
Originally Posted by dlundblad
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
They will flow the same because of the bypass valve.
Yeah, but do you really want the filter in bypass a lot of the time.
Originally Posted by ZeeOSix
Originally Posted by dlundblad
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
They will flow the same because of the bypass valve.
Yeah, but do you really want the filter in bypass a lot of the time.
Originally Posted by ZeeOSix
Originally Posted by BlueOvalFitter
Originally Posted by ZeeOSix
Originally Posted by dlundblad
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
But, how can you determine if the louvers are closed? I'm thinking an oil pressure gauge entering and leaving? But, how many people will have this set up? And, how many people stop to wonder if the louvers are closed? How many consumers know that an oil filter has louvers, holes, squares, triangles, etc., in an oil filter?
Use a flashlight and your eyes. There's been photos posted many times showing good vs bad formed louvers.
What you're saying is, EVERY oil filter buying consumer, including me, must now bring a flashlight with them to stores, oil change outlets, etc., to check their oil filter before it's installed on their vehicle? Is this what you do in the store? What kind of flashlight do you recommend.
SMH!
Originally Posted by BlueOvalFitter
Originally Posted by ZeeOSix
Originally Posted by dlundblad
I would argue they flow the same.
They will flow the same because of the PD oil pump.
But if louvers are closed up it can cause much more delta-p across the filter, which in turn can make the bypass valve open up. Ideally, you want a small delta-p as possible across the filter. When someone says it "flows better" when a PD pump is involved, it really means there's less delta-p due to flow.
But, how can you determine if the louvers are closed? I'm thinking an oil pressure gauge entering and leaving? But, how many people will have this set up? And, how many people stop to wonder if the louvers are closed? How many consumers know that an oil filter has louvers, holes, squares, triangles, etc., in an oil filter?
Use a flashlight and your eyes. There's been photos posted many times showing good vs bad formed louvers.
What you're saying is, EVERY oil filter buying consumer, including me, must now bring a flashlight with them to stores, oil change outlets, etc., to check their oil filter before it's installed on their vehicle? Is this what you do in the store? What kind of flashlight do you recommend.
SMH!
Originally Posted by BlueOvalFitter
Originally Posted by ZeeOSix
Use a flashlight and your eyes. There's been photos posted many times showing good vs bad formed louvers.
What you're saying is, EVERY oil filter buying consumer, including me, must now bring a flashlight with them to stores, oil change outlets, etc., to check their oil filter before it's installed on their vehicle? Is this what you do in the store? What kind of flashlight do you recommend.
SMH!
Use the flashlight on your cell phone. Yes, I do inspect oil filters before buying them. If you think it's too much trouble to take 30 seconds to take a look, then just buy it and slap it on.
Originally Posted by ZeeOSix
Use a flashlight and your eyes. There's been photos posted many times showing good vs bad formed louvers.
What you're saying is, EVERY oil filter buying consumer, including me, must now bring a flashlight with them to stores, oil change outlets, etc., to check their oil filter before it's installed on their vehicle? Is this what you do in the store? What kind of flashlight do you recommend.
SMH!
Use the flashlight on your cell phone. Yes, I do inspect oil filters before buying them. If you think it's too much trouble to take 30 seconds to take a look, then just buy it and slap it on.
