powerstrokin03

i just bought an afe pg7 intake system for my 600 and after one day of driving the filter minder was pulled half way down. what is wrong?

Cummins600

Strange, I have about 7,000 on my AFE pg7, drop-in and it hasn't moved a bit.

Dodgezilla

Maybe it was over-oiled....

doug60

Do a search, lots of info on this. Bottom line from what I got out of it, your flowing more air. Gauge reading not accurate.

doug

the new in-tube location on the AFE intake system means that even if the filter minder was accurate and consistent from truck to truck, it would read higher in restriction when installed in the AFE because of the high velocity of the air in the tube that creates a low pressure behavior similar to the low pressure created on the top of an airplane wing due to the higher velocity of air caused by the airfoil.

the higher velocity of air in the tube is caused by:

1. the fact that it is restricted to a 4" tube instead of the large square area of the factory air box

2. slightly more airflow due to the lower restriction of the AFE filter when compared to the factory panel filter.

The AFE factory oiling process is highly repeatable and consistent. I would be far more suspicous of a repeatability/consistency issue with the filter minder than with AFE. of course, it is possible to over-oil the AFE, which in fact would create higher restriction consistent with the observed behavior. the way to check for this is to look inside the intake tube. over-oiled filters produce a visibly obvious presence of oil in the intake tube. correctly oiled filters produce wither no evidence of oil in the tube, or perhaps a very light breath or wisp of an oily appearance in there.

in short, the filter minder is practially meaningless in the first place, and utterly so when installed on the AFE. think of the AFE as just a storage location for it. Its just not good for any useful purpose and provides zero information for what you think would for the AFE anyway (an indicator of when to service the filter)