NOOOOOICE:D:lol2::arms::thumbsup::clap2::woot:
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NOOOOOICE:D:lol2::arms::thumbsup::clap2::woot:
If you can get the power usage figures for one then you can prove it without wasting your money - by doing a few back of the envelope calcs.Quote:
Originally Posted by long stroke
As someone mentioned, there are power losses driving the alternator, and converting kinetic energy into electrical energy. Let's forget that for a moment, and say that the device sucks 50A of juice @ 13.5V when running (doubt it would be anywhere near that high).
50A @ 13.5V = 810W = 0.81kW. However, when sizing fans of that type, you assume only 60% efficiency, so the actual usable energy the fan could give would be about 0.5kW tops. Now assuming about 10% losses (pressure drop), you would be lucky to get 0.4kW of usable energy.
And that is a BEST case scenario...
So....................
Should I buy one ?
;) :D
Quote:
Originally Posted by HangOver
Go for it I say, get the one thats run off a USB adapter and ulitise it as the male equivalent of a Venus chair.
IT might make a noticable difference to something like a 2.25 NA petrol and maybe the diesel but if youve got a turbo or anything bigger than say 3 l it aint gunna do squat.
ITs a squirel cage fan. how much air do you get out of your dash and how much pressure do you think it can deliver?
to work out if it would give you any boost just stick an anemometer( wind speed measuring device) in the middle of your air inlet tract (make sure its in a part thats the same size as the outlet of the fan booster) then give it some full noise action.
do the same for the fan.
if the fan cant shift more air with no restriction on it than the engine can pull through it aint gunna do diddly.
Dont buy one if you dont have an old low compression low power low capacity engine (say a series IIa petrol)