Air filter CFM needs

philofab

Active member
Joined
Sep 7, 2023
Messages
105
Location
Mohave Valley
So, I am putting a LQ4 in my Blazer with mild mods. Cam, TBSS intake, headers, ect.

I ordered two Donaldson air cleaners part # G082527.

These are the specs:

Rated Flow LR205 cfm (5.8 m³/min)
Rated Flow MR244 cfm (6.9 m³/min)
Rated Flow HR275 cfm (7.8 m³/min)
Restriction LR5.98 inch H2O (152 mm H2O)
Restriction MR7.99 inch H2O (203 mm H2O)
Restriction HR10.00 inch H2O (254 mm H2O)

So, judging by this I will have between 410cfm to 550cfm when they are clean. Seems low for a V8 but these have more surface area on the filters than most 6100 trucks? I couldn't find much info on this and was hoping to hear others experience.
 
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