Tuarus Electric Fan Setup, HEELLLLP !

[Maniak]

It doesn't put out the same ammount of wattage at a given RPM. It is capable of putting out a specific amout of wattage at that rpm, but unless something is drawing the power it isn't being used.

As I understand it, its up to regulator to control the voltage by manipulating the field and if you try to pull too many amps from the alternator you will just run out of available amps and you will be running the altnerator at 100% field strength which is hard on it.

I know I'm not explaining it well enough.. hopefully someone else can explain it.

~Mark

 

[Rofocowboy84]

It doesn't put out the same ammount of wattage at a given RPM. It is capable of putting out a specific amout of wattage at that rpm, but unless something is drawing the power it isn't being used.

As I understand it, its up to regulator to control the voltage by manipulating the field and if you try to pull too many amps from the alternator you will just run out of available amps and you will be running the altnerator at 100% field strength which is hard on it.

I know I'm not explaining it well enough.. hopefully someone else can explain it.

~Mark

Okay, but no matter what the wheel that the belt spins offers the same resistance, correct?

 

[Maniak]

As I understand it, the difference in field voltage determines the load the alternator puts on the motor which is controlled by the regulator.

edit: btw.. I think the piece of info we are missing is that an alternator has electromagnets. Unless there is current going through them (hence the exciter), they aren't actually a magnet and the change in current through the electromagnet changes the strength of the magnet which in turns puts more load on it. If an alternator had permanent magnets then it would put the load on it all the time.


~Mark

 

[mountaineer02]

As I understand it, the difference in field voltage determines the load the alternator puts on the motor which is controlled by the regulator.

edit: btw.. I think the piece of info we are missing is that an alternator has electromagnets. Unless there is current going through them (hence the exciter), they aren't actually a magnet and the change in current through the electromagnet changes the strength of the magnet which in turns puts more load on it. If an alternator had permanent magnets then it would put the load on it all the time.


~Mark

I think thats pretty reasonable, makes sence. So is it worth putting a e-fan on only of your going to run u/d pulleys/

 

[ExPlOrErImPoRtS]

Dc bad service

NO going back to dc :roll: service D- returning mail F fast service & shipping:roll::roll::roll: :thumbdwn:

:exp:

 

[stockcarracer]

Slap me if I'm wrong, but doesn't the alternator always put out the same energy per RPM no matter what? The belt is controlled by the crankshaft, which is controlled by engine speed, not performance needs of the alternator, correct? Therefore, it would seem to me that no matter how many power hungry things you have running, it won't affect the parasitic drain of the alternator, because that is a constant. So, if you're pulling more juice than the alternator can produce, the MPGs will stay the same, but you'll just drain your battery.

Have you ever hooked up jumper cables while the engine was running? Most of the time the running engine will lug down a tad. The current draw to the dead battery takes more h.p. and rpm's to charge

 

[Hitchhikingmike]

Good thread. I'm going to be adding an efan to my 3rd gen as soon as finals weeks ends. I'm putting on about 11-12k miles a semester so I'm trying to improve fuel economy! I'm looking for a Taurus fan to keep this on a budget as well.

 

[04urban]

I use a Tuarus fan like this in my 71 Nova. Just so you know. These fans, on the high speed draw around 95 amps for a second or two when it kicks on.
Make sure you use the right fuse,relay,wire and an Altenator with at least 140 amps output.
But they do work great, keeps my small block 350 around 170 o in traffic, very rare do I need high.....

Eric...............