electric fan size and cfm

[tikitime]

what size of fan and cfm would I need for a 200, modified log head bigger valves headers 2 v conversion, headers etc 264/264 cam cr 9.5.1
like the idea of the electric fan been looking on ebay but lost on what to get theres so many not sure about cfm needed or phys size would be best

 

[powerband]

Are you looking to supplement or replace the WP driven mechanical fan?.

Supplementals are avilable small and thin, for replacement you will need fairly high CFM .

@ 3500 pusher for the SixT'Bolt 250:


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[tikitime]

looking for a replacement but the highest cfm I can find is 2100 not sure if thats enough

 

[Zorm]

I am going to do the Taurs or Contour electric fan mod. you can do a surch for that.

 

[powerband]

Most modern systems use two or more smaller fans to get the CFM up. Advantage with electric fan is it delivers same/max CFM regardless of engine speed - even at idle.