Air Filter Observations

[bloc]

Do you guys showing dirty filters at low filter mileage have snorkels?

Also isn't the position of the minder itself pretty important? can't there be a venturi effect if the airflow across the surface of the minder inlet is pretty high velocity?

 

[El Aleman]

Buenas tardes Tapage, no se si tu hablas español, pero eso es la lengua en Panama. Vivo en las playas de Panama y tengo 3 Landcruiser s, estoy arreglando todo en mi deposito pero tengo problemas con 2 LC y no conozco alguien que me puede ayudar con eso en Panama. Si tu tienes tiempo podemos hablar mi numero teléfono es 60701677 . Soy aleman y hablo varias lenguas no importa español,aleman, ingles etc.. Gracias y saludos Matthias

 

[veiloctane]

I have this Wix filter minder and it always maxes out to 25 in. H20 Shows clogged even though the filters are new

Im on a turbo diesel and have a Safari Snorkle so not sure if it makes that big of a difference.

I have Tried 3 New air filters

Toyota OEM paper non-washable 17801-68030
Toyota OEM washable 17801-61030
Wix OEM replacement 42159

seems fine when no filter is installed is the factory air filter really that restrictive?

I may try an aftermarket performance filter such as K&N or aFe or even S&B to see if flow improves

S&B W-2443
K&N E-2443
aFe Pro 5R 10-10008 (Oil) or Pro Dry S 11-10008 (Dry)

if it's true that the OEM air filter is that restrictive im sure it's filtering great but performance is really suffering
but it seems you can achieve the same results with K&N you just have to use it correctly

I believe the proof is in the pudding if there's no dust found in your inlet then it has good filtration

 

[mudgudgeon]

I have this Wix filter minder and it always maxes out to 25 in. H20 Shows clogged even though the filters are new

Im on a turbo diesel and have a Safari Snorkle so not sure if it makes that big of a difference.
View attachment 3390141

I have Tried 3 New air filters

Toyota OEM paper non-washable 17801-68030
Toyota OEM washable 17801-61030
Wix OEM replacement 42159

seems fine when no filter is installed is the factory air filter really that restrictive?

I may try an aftermarket performance filter such as K&N or aFe or even S&B to see if flow improves

S&B W-2443
K&N E-2443
aFe Pro 5R 10-10008 (Oil) or Pro Dry S 11-10008 (Dry)

if it's true that the OEM air filter is that restrictive im sure it's filtering great but performance is really suffering
but it seems you can achieve the same results with K&N you just have to use it correctly

I believe the proof is in the pudding if there's no dust found in your inlet then it has good filtration

Is there a problem with how your filter monitor is installed?
If you're consistently having new oem filters show as clogged, there's something not right.

I'm pretty sure the OEM Toyota filters and airboxes are considered OK up to low-mid 20s psi.
Go much above 20psi, then upgrading to a quality aftermarket air box and panel filter becomes worthwhile.

 

[veiloctane]

Is there a problem with how your filter monitor is installed?
If you're consistently having new oem filters show as clogged, there's something not right.

I'm pretty sure the OEM Toyota filters and airboxes are considered OK up to low-mid 20s psi.
Go much above 20psi, then upgrading to a quality aftermarket air box and panel filter becomes worthwhile.

I’ve tried another filter minder one off my friends Cummins dodge. Same part number. I’m getting same results about 10psi it moves about halfway. Anything beyond 14-16psi it maxes out. I followed the instructions on installing and it’s just drilling a hole and insert the grommet.

Filter minder just has to be installed after the filter. Nothing too technical about these filter minders.

 

[mudgudgeon]

I’ve tried another filter minder one off my friends Cummins dodge. Same part number. I’m getting same results about 10psi it moves about halfway. Anything beyond 14-16psi it maxes out. I followed the instructions on installing and it’s just drilling a hole and insert the grommet.

Filter minder just has to be installed after the filter. Nothing too technical about these filter minders.

I saw a post about an open tube being at 90⁰ to the inlet flow can create a venturi effect with air rushing past the end of the tube.

I wonder if there's any substance to that?

 

[veiloctane]

I saw a post about an open tube being at 90⁰ to the inlet flow can create a venturi effect with air rushing past the end of the tube.
I wonder if there's any substance to that?

Possibly you got a link to that info?
There’s no mention of this in the documentation on the wix installation manual.
Mine is installed before the 90

 

[mudgudgeon]

Possibly you got a link to that info?
There’s no mention of this in the documentation on the wix installation manual.
Mine is installed before the 90

Nah, it was in a thread on mud, probably one you've posted in recently.

Not much detail, just a suggestion from someone else.


Slightly different scenario, but when I fitted a mechanical boost gauge, my needle fluttered because it was getting too much air up the 3mm signal line.

Two things combined stopped it.
1st was putting a fitting in the manifold with a 1mm orifice. I soldered a 3mm fit closed and drilled it to 1mm
2nd was to squirt a pump of grease up the boost signal line with your favorite grease gun. It acts as a buffer in the line. When on boost, the grease gets pushed up the line, compressing the air downstream the same amount. Boost signal is faithful.
When boost drops, the compressed air on the gauge side of the grease plug pushes the grease back down the line.

 

[veiloctane]

Nah, it was in a thread on mud, probably one you've posted in recently.

Not much detail, just a suggestion from someone else.


Slightly different scenario, but when I fitted a mechanical boost gauge, my needle fluttered because it was getting too much air up the 3mm signal line.

Two things combined stopped it.
1st was putting a fitting in the manifold with a 1mm orifice. I soldered a 3mm fit closed and drilled it to 1mm
2nd was to squirt a pump of grease up the boost signal line with your favorite grease gun. It acts as a buffer in the line. When on boost, the grease gets pushed up the line, compressing the air downstream the same amount. Boost signal is faithful.
When boost drops, the compressed air on the gauge side of the grease plug pushes the grease back down the line.

Thanks for the info.
I’m not getting any boost signal flutter. It’s smooth and gradual. I have a aFe filter on order gonna give that a try when it comes in.

 

[mudgudgeon]

Thanks for the info.
I’m not getting any boost signal flutter. It’s smooth and gradual. I have a aFe filter on order gonna give that a try when it comes in.

I realise you didn't say anything about boost gauge flutter.
Was just thinking out loud so to speak. Thinking the filter minder is kind of a similar scenario, but vacuum instead of boost.
The shot of grease and smaller orifice at to dampen the signal, but you still get a faithful signal.
Was just pondering if a similar thing was happening with your filter minder.
To have several different new filters all trigger it suggests something ain't right with it, not with ALL the new filters

 

[veiloctane]

I realise you didn't say anything about boost gauge flutter.
Was just thinking out loud so to speak. Thinking the filter minder is kind of a similar scenario, but vacuum instead of boost.
The shot of grease and smaller orifice at to dampen the signal, but you still get a faithful signal.
Was just pondering if a similar thing was happening with your filter minder.
To have several different new filters all trigger it suggests something ain't right with it, not with ALL the new filters

I don’t Know why but I could take a vacuume pump gauge and test this filter minder.

 

[BILT4ME]

Just makes sure that however you are testing things, it makes a difference what UNITS you are working with. I'm NOT talking about the difference between Freedom units, Refrigerators, Washing Machines, and Aussie units.

I'm referring to:
Inches of WC (water column)
Inches of Hg (mercury)
PSI (Pounds per square inch)

Or all the Metric equivalent of those.

The vacuum on an intake is measured in in Hg.
Filter dirtiness will be measured in inches of WC. (This is called DP (differential pressure)
Boost is measured in PSI.

Get it right for the sake of maths and clear communication.

1" Hg = 13.6" WC

A dirty air filter should be changed when you reach about 18" WC DP.