vacuum on filter?

[kawi600]

Ive got a AFE pro-guard filter on my truck that feeds a small 62/12 turbo. Truck dynos around 400hp. I thought these filters were good for more flow? My OEM dodge vacuum guage widget says Im almost at 25" vacuum, max.
That sound right? Its cleaned and oiled. Has a clean outerwears pre-filter on it.
Im putting the industrial tow twins on it in a couple weeks.. maybe time for a better filter, or cook up some plumbing for a dual filter? I have a spare blue AFE on the shelf here, why not.

 

[Chevycummins]

Get the oiless filter as the turbo will just suck that one dry. I have not measured that personally so I am not sure how much ingm is to much. As long as your not collapsing the filter I would say your fine.

 

[Wozxxx86]

ive got the aem brute force on my stock turbo, after i put sticks in and put 2 clicks on the gov springs i can suck the vac gauge half way down. which kinda scares me when i think of getting twins or sumthing that really pulls some air

 

[kawi600]

yeah I was lookin around AFE's site and you can get some custom filters.
Hard to get flow specs for these things, its frustrating.

 

[mathews8pt]

I have a AEM brute force and it would suck the meter down all the way. At the track i pulled the filter off and reset the gauge to give it as much air as possible. It would still suck the gauge most of the way down with NO filter on it!