Coolant Fan CFM?

[tbryanh]

Does anybody know what the CFM af the stock coolant fan is?

 

[rhkcommander]

Does anybody know what the CFM af the stock coolant fan is?

Not sure, but it varies. Much more than any electric fan could do from what I've heard. You can get some power back by swapping to electric fans, a common method is two ?ford taurus/van 3.8l fans?... there are a couple write ups here somewhere

 

[OLDBULL8]

IT varies with engine speed, a locked fan 1800 RPM at 240* IIRC is 960 CFM.

 

[ocnorb]

960 seems low...

 

[chris142]

960 seems low...

Very low. More like 9900 cfm or more. I used to have a book that listed mechanical fan cfm's by aplication. I remember that your average mid 70's big block car was 8000-10000 cfm and our fans are much bigger than those.

 

[riotwarrior]

Ill bet there is an app for that....or some formula that computes # of blades, diameter of inner and outer blade area covered and angle of attack and RPM....