Blower Motor Upgrades?

[Bitsyncmaster]

I've thought about replacing the blower motor with a motor I have that may be more efficient and provide more air flow. The motor is used for radio controlled airplanes and has cobalt magnets. I will have to do some testing to see what current it uses at 12 volts loaded. Your looking for more current than the stock motor draws. If that current is to high, you would PWM the current lower.

I think the only thing you will gain is a quicker cabin cool down after your car has been parked in the hot sun.

[David T]

I've thought about replacing the blower motor with a motor I have that may be more efficient and provide more air flow. The motor is used for radio controlled airplanes and has cobalt magnets. I will have to do some testing to see what current it uses at 12 volts loaded. Your looking for more current than the stock motor draws. If that current is to high, you would PWM the current lower.

I think the only thing you will gain is a quicker cabin cool down after your car has been parked in the hot sun.

The very best thing you can do for that is to get a cover to put on the inside of the windscreen to reflect the sun out. It helps ALOT.

[Nicholas R]

The very best thing you can do for that is to get a cover to put on the inside of the windscreen to reflect the sun out. It helps ALOT.

How do you see where you're going?

[LordFly]

How do you see where you're going?

[MML]

I see the first post mentions a Siemens PM106 blower motor, I take it that's the exact same thing as this?

http://www.ebay.com/itm/HVAC-Blower-...bd171f&vxp=mtr

[Elvis]

I work for ebm-papst and we build fans.
I once thought about replacing the motor but what would I gain ?

A little more efficiency ? Maybe 10% more airflow ?

That's not worth the trouble for me.


Less noise of the motor and brushes would be great, but then I bought a
new siemens motor for $25 and that helped a lot.

One would also have to modify the switch, programm the fan speed curve and so on.

I'm sitting at the source to do it but I see no sense in doing it. Too much modification
for a classic car. And not enough gain to motivate me.

[bfloyd]

Was there ever a solution found to increasing the volume of moving air? I just replaced my blower motor this weekend with the PM106, and I can't tell any difference at all. I don't want to plug up the door vents, but I really wanted a fairly steady forceful stream of air hitting me in the face.

[Chris 16409]

I've been happy with my blower motor:

image.jpg

[Patrick C]

I’ve found the biggest improvement to my car was relocating the vents to the kneepads using Mitsubishi Eclipse vents. You get the full force of air being directed at the driver and passenger. It’s pretty remarkable how much airflow the stock fan can produce when you have adequate vents for the air to be directed from.

[papanoel]

I think my blower motor at autozone works just like the original one.
I find that my car actually stays colder if I reduce to fan speed 2 after a few minutes of full blast.