origionally posted by Shawndude:
#1 is the flow rate of just the AFM, with nothing else.
1) Stock AFM = 453 CFM.
2) Stock AFM + accordion pipe = 419 CFM.
3) AFM + stock (brand new) air filter + snorkel cover + accordion pipe = 384 CFM.
4) As above, tested with 6 month old dirty stock air cleaner (you could barely see light through it) = 376 CFM.
5) AFM + No air filter + snorkel cover + accordion pipe = 393 CFM.
6) AFM + stock (brand new) air filter + No snorkel cover + accordion pipe = 405 CFM.
Notes:
1) The numbers are accurate to each other, but may be off as a whole, when compared to a certified flow bench unit.
2) All measurments @28" H2O. (Remember at this flow we're loosing more than 1 PSI).
3) You cannot convert flow at different H20 readings using a formula for testing air filters. The formula doesn't work. K&N constantly uses this method to make other air filters appear to flow poorly in their advertisements. If an air filter isn't tested at 28" H20 the results are meaningless for comparison to one that is tested at 28" H2O, even if converted.
#1 is the flow rate of just the AFM, with nothing else.
1) Stock AFM = 453 CFM.
2) Stock AFM + accordion pipe = 419 CFM.
3) AFM + stock (brand new) air filter + snorkel cover + accordion pipe = 384 CFM.
4) As above, tested with 6 month old dirty stock air cleaner (you could barely see light through it) = 376 CFM.
5) AFM + No air filter + snorkel cover + accordion pipe = 393 CFM.
6) AFM + stock (brand new) air filter + No snorkel cover + accordion pipe = 405 CFM.
Notes:
1) The numbers are accurate to each other, but may be off as a whole, when compared to a certified flow bench unit.
2) All measurments @28" H2O. (Remember at this flow we're loosing more than 1 PSI).
3) You cannot convert flow at different H20 readings using a formula for testing air filters. The formula doesn't work. K&N constantly uses this method to make other air filters appear to flow poorly in their advertisements. If an air filter isn't tested at 28" H20 the results are meaningless for comparison to one that is tested at 28" H2O, even if converted.