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Post Info TOPIC: Suck or blow?


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Suck or blow?


Hope that got your attention wink

Having now got the rad back in, I'm in the process of selecting an electric fan. So, as per the question, suck or blow. I know the same fan can be used depending on polarity but for the purposes of mounting once and (hopefully) once only, front or back of rad? My own inclination would be to the rear of the rad as there won't be any  interference to the air flowing through it but I'd be interested in other opinions. 



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yea this one has always been a bone of contention in the snug. I get it that if they ain the front they are a resistance BUT surely if the air flow into the core of the rad is not hampered on the way in it will be on the out?

I've fitted two Austin montego fans (yep it was a long time ago) run through the band saw to reduce the overall width etc, super glued together and fixed to the inside of the GRP air intake (from open mouth to rad front face).

They are semi concealed in there and are safe enough for my fingers etc. 

I did buy a pair of new style swirly bladed fans a few years ago, went through all the palaver of fitting them to find they were very poor and went back to the Montego ones. when I switch these on in the workshop you can feel a real

breeze under the sills of the car. The outer circular frame of the fans has a thin line of neoprene stuck to it and this sites against the core of the rad to make a good seal. It is also my belief that you should run two fans as the rad is so Landscape in appearance 

putting on in the middle put a lot of stress on the outer edges.

MHO of course folks.....

 



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I'm looking at a 13" Revotec high power atm but you're quite right. The very landscape proportions of the rad would mean part of the fan unit would overlap the header and bottom.

You've got me thinking now. Would 2 smaller fans, side by side be more efficient? Might have a word with Revotec and seek their opinion.



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yea there's not much point going over the header/bottom tanks to try and gain width. I think Ken has two fans and can use one or two dependent on how hot its getting....I find I need all I can get asap!



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