Electric Fan...

Thinking of putting in an electric fan on my Zed... what are your thoughts? I heard this can free up some ponies, but I also heard that they have a low-life span? I also heard that the adjustable thermostat controlled fans can be a lil' dangerous? What would an ideal temp be set at?

Z32s come with clutch fans, too? Didn't know that. I'm going to put an e-fan on my car asap. I've never heard of anyone having any trouble with them and you do free up a good amount of power. You just have to make sure you get a good one that pulls enough air. Look for as close to 3000 cfm as you can get...if not more. That should be plenty flow. I don't know what size your car can handle.

ours is connected to the crankshaft pulley (don't know the technical name for it) so it is spinning all the time when the engine is on. i think that is how it works. what i want to do is put that little fan in front of the radiator on a switch because stock, it only turns on when it is really really hot, and i would like it on all the time to keep things cooler.

ours is connected to the crankshaft pulley (don't know the technical name for it) so it is spinning all the time when the engine is on. i think that is how it works. what i want to do is put that little fan in front of the radiator on a switch because stock, it only turns on when it is really really hot, and i would like it on all the time to keep things cooler.

Duhhhrrrrrrrrrr! LoL :screwy: That is exactly what I'm talking about freak! LoL :biggrin: You're funny! I was just mentioning the adjustable ones... buy they do have 'em for our Zeds (full-time electrical). I believe that the adjustable are more sought after, however. This has something to do with a longer lifespan... if it is on constanttly it will go out quicker.

and i would like it on all the time to keep things cooler.

I just assume that the Nissan engineers know alot more then I do and have it set to come on when appropriate.

Switching to electric fan or dual fans will free up a few ponies at the top end, not much else where. It really doesn't take that much to spin the little plastic fan on the front of a VG30.

Adjustable fans can be set to come on hotter or cooler, which adds additional parts to the mix and more places for something to go wrong. Not that thats likely but there you go. And if you do have a fan thats on all the time it will extend the warm up period of your engine from a cold start, something engines in general are not fond of.

I never really stared at a VG while its running but I can't really imagine that they wouldn't have a clutch fan. I know you can spin shaft free of the blades...whatever...

I know that on the Z32s, the fan is on the water pump pulley, and I'm pretty sure that like most fans I've seen, it uses a viscous coupling between the driving shaft and the fan itself. As the water pump heats up (due to the engine heating up), it heats up the viscous fluid inside the coupling, making it less viscous, which means less power transmitted to the fan itself. A cheap and easy way of regulating the engine temperature.

But yeah, electric fans rock. I've got 2. It also gets rid of some of my engine bay clutter too.

-Mike

-Mike

aren't they pretty expensive though it appeared that it would cost me upwards of $200 just to get one for my 91 chevy truck which is usually cheap to get parts for ie$300 lsd's

I found one for $120... Victoria British Catalog.

on the amz performance site they have some good looking fans. Also about that little fan in front that only comes on under REALLY hot situations, I want to redo that one too because i can't even spin it free hand and that makes me a little nervous. You can usually do that with any fan. oh well, we'll see

The little fan in front of you're radiator is actually the a/c fan, it has nothing to do with the engine cooling system. if you want to switch to an electric radiator fan, look for something in the area of 2,250+ cfpm. Flex-a-light, ect,ect,ect.

hmm could explain some reason why my AC stopped working, i thought it was the freon

the little fan is the accesory fan. it turns on when your engine is really hot. i have never ever heard it being your a/c fan. why would your a/c need a fan?

haha dammit, now im confused, I thought of it being for the engine not AC ...Thats what i was leaning more towards. I never heard of an A/C fan like that either

In the front of a z31, and i believe the z32 operates the same, their are what apears to be 2 radiators (3 if it has an oil or auto trans cooler,wich will be 1/4th the size if a radiator). The frontmost one is actually an a/c condensor. The little pusher fan in front of it is the a/c condensor fan, used to cool the a/c freon back into a colder liquid form.

Engine cooling fans are almost always puller fans, located after the radiator, and either belt driven clutch fans or shrouded elecric fans.

Ummm... yes... thanks for the insight (does he realize no-one has touched this thread since last month, guys?)...

it is for extra flippin cooling!!! my electric fan never has turned on until my my belt broke and my water pump wasn't pumping so my engine got really really hot and my electric fan turned on.

this thread is done. no more posts.