Intercooler fan yes or no ?

[threedogs]

In theory a fan should help at all speeds if set up properly as standard set up does allow air to flow through all the intercooler as can be seen from attached photo of mine. Back half is dirty from air and dust hitting top of intercooler but front half is as clean as a whistle. Standard scoop & intercooler.

If I saw your IC I would think only half is being used, be it the dirty side only saying that because with the ARE scoop
there are vanes underneath to direct a pecentage of the air to the front of the IC. With the OE scoop air is forced
only to the rear. Saying that I believe only the Dirty part of your IC is being used, so not very efficient it could be better
The ARE web site shows how efficient your IC can get,, what with a tigged IC to fitting an ARE scoop to even fitting a fan