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View Full Version : Calculating CFM using only amp information


Precog
Oct 25, 2007, 06:54 AM
I am trying to calculate the airflow through a fan, but the only information I have available now is the amps coming off the fan. What other info do I need to do this? Any help would be great!

dj_acidstorm
Aug 8, 2008, 05:30 PM
12v 4.5 amp 250cfm
12v 7 amp 300cfm +

FROM DAYTONA ! FLORIDA !

12 VDC race car brake cooling blower



Item is brand new from Detmar Company

Size is 4 inch inlet / output O.D.

( we also offer a 3 inch model on eBay )

4.5 amp rated, CFM 250 / DetMar

12VDC

total size is 4 inch dia x 5 3/4 inch length

mounting bracket built in

strong electrical motor

Weatherized marine envoirment rated !

We have been supplying these to Euro race cars for over 7 years ! Across Europe

other customers include land speed record cars !

stock cars / test cars / drag cars

In-Line Bilge air blower. This blower produces 300+ CFM and is rated for 7-Amps, 12 volts.