Thanx for the info Cathar,
I remember reading the thread where you replaced your WC-
Box fans, with the "Big Mofo Dual Blower" very impressive!
I'll try the 7V wire combo trick...... methinks.....
What I'm wondering is.... If I connect the appropriate wires to
the motor, without resistors or sumsuch between the PS + motor.
Will she go? Is there a chance I'll pop my PS?
(vague recall of caution if motor draws too many amps?)
I'm sorry I don't have much technical knowledge. I just love to
Tinker, massage and OC like crazy!
Currently my dual low-speed 120mm fans work great, esp. with
moderate ambient temps.
When ambient is high... like 30c+ I believe a blower would
perform quite nicely.
I'm quite poor right now, thus the interest in an inexpensive
HP solution.
Thanx again for the info!
Quote:
Originally posted by Cathar
When I picked up mine, I just took it to a local radiator repair workshop and asked them to tell me about it. They all have catalogs of these blowers, as this is necessary fo repairs, and they'll be able to tell you what wires do what.
Yes, you will be able to run it off your PSU, but my guess is that it might be FAR less noisy to run it at 5V, than at 12V.
Car blowers are typically rated for around 400-1000 CFM when run at 12V at full speed, and they will draw tremendous amount of power (>200W) when doing so. In order to use them you must find a way to either drive them at their lower speed as well as drive them at a lower voltage. My blower at 12V on its lowest setting is still quite noisy (quieter than an 80mm delta though by a long shot). I need to run it at 7V and at its lowest (of 3) settings, and then it really comes into its own, pushing about as much air through the heater-cores as 2 high-speed 12cm fans would do, all for about the same level of noise as a medium speed 80mm case fan (~30dBA at a guess).
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