Vehicle & Technical > Defender
COOLING ADVICE ON A V8 PLEASE.
Range Rover Blues:
--- Quote from: V8MoneyPit on June 21, 2009, 14:30:08 ---
--- Quote from: Range Rover Blues on June 20, 2009, 22:38:37 ---Kenlow fans will shift slightly more than HALF the air that a good viscous fan will move. I was advised by a Kenlowe engineer NOT to fit their electric fans to my LSE but to replace the viscous fan, a new hub costs £50 compared to over £100 for Kenlowes.
A vicosu fan when locked up consumes between 3 and 5 Hp, that's 185 amps. How many fans draw this much current? so haw many fans can have a comparable output?
--- End quote ---
Fair comment, but why do most modern cars use electric fans? I'm guessing the viscous fan is still consuming power even when 'unlocked' and the saving of fuel when using electric fans outweighs this. My electric fans never came on in normal road driving except after several minutes sat in traffic. And then they would cut out again after a minute or so. I found them amazingly efficient.
--- End quote ---
Most modern cars are designed to have an electrci fan in the system, so the size of the rad is bigger even for an engine much smaller than the Rover V8. Plus of course many modern cars have their water pumps and drive belts facing the inner wing not the radiator grille, so a viscous fan would not be poissible.
As for the economy, well I've put a big electric on the TDi and I'm yet to be convinced it's made the slightest difference to the MPG :-k
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