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When choosing a fan should I choose a fan the same size as the viscous fan or a bigger 1 than standard.I'm going to be using my car for track days etc.i was looking at 1s the same size as the standard 1 as fans aren't really needed when cars are moving obviously
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shin2chin
Part of things
Making curse word cars slightly better
Posts: 820 
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Personally I'd go for the biggest you can fit in.
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1977 PORSCHE 2.0na 924
1974 VW Beetle 1600
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^^^ what he said the more cooling area it has to work on the better, i'm assuming its under some sort of control so its not like you've got to worry about over cooling it.
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Copey
Posted a lot
Posts: 2,845
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agreed, biggest fan you can physically fit in there and on some sort of stat control, depending on car you may already have one in the rad? if not then there are various top hose ones available  |
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Last Edit: May 5, 2014 21:57:53 GMT by Copey
1990 Ford Sierra Sapphire GLSi with 2.0 Zetec
1985 Ford Capri 3.0 (was a 2.0 Laser originally)
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,161
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I found a smaller one that fitted tightly against the rad worked best, compared to a big one a not so close. Less air spilled out in the gap between rad and fan.
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Yeah as large as you can fit against the radiator is the way to go. Just make sure its mounted the right side as there are blow and suck elec fans out there.
Also if you put a sensor in a water pipe to switch the fan it should be in the return pipe to the engine, which is normally the bottom pipe.
No point switching the fan on when hot water comes into the radiator
You only need the fan when the water coming back from the rad is still hot as the rad hasn't been able to cool it (normally as you are stationary)
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ChasR
RR Helper
motivation
Posts: 10,194
Club RR Member Number: 170
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Choosing an electric fanChasR
@chasr
Club Retro Rides Member 170
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I do agree with fitting in the biggest fan you can find, in addition to it basically hugging the radiator, hence reducing air leaks.
However, there is another school of thought which says that putting in the largest fan in front of your radiator will reduce the surface area of which the air can pass the radiator on the move.
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It's not just the size....
I ended up buying a pacet pro fan over a kenlowe for example as per equivalent, the pacet can move a lot more air. Just check the manufacturer specs once you know the size you can fit.
Also, don't forget that you are sure to be able to improve the amount of air going through the rad and not being lost around it, by simple diy sealing of gaps around the rad....
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Have a look at www.Revotec.comThey do high quality fans and thermal control units and are cheaper than Kenlowe and have higher air flow rates |
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Last Edit: May 8, 2014 19:21:47 GMT by Vintage75
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