Fingers

In an attempt to have a tidy and uncluttered engine bay, would it be possible to use a pusher fan instead of a puller? I know it wouldnt be as efficient as a puller.

is this a bad idea?

bl|nk

I don't think a pusher can come close to getting enough air flow through the radiator... A puller isn't that big.. and it'll protect the fins of the radiator from damage in yoru uncluttered engine bay

Fingers

I think the protection of the fins is more important in the front where debris can fly up and hit the rad fan will chew it up LOL

Seriously though... you're telling me that the same fan, when positioned as a pusher instead of a puller will do an iadequate job of cooling???

bl|nk

same fan? how do you figure? the fan has to be able to reverse it's direction to be a pusher then a regular puller..

the front is pretty well protected it's not in the very front of the car

ponykiller

all you do is switch the polarity of the wires on the Efan to make it a push instead of pull...

Fingers

Bingo.

So my question remains. Same fan. Mounted on the other side of the rad. Polarity reversed. Same effect?

skyypilot

More than likely, I would have to say Yes...

Evil Aviator

A puller fan will yield a higher airflow rate through the radiator core than a pusher fan. Also, running a fan in reverse will sometimes reduce its efficiency, depending on the design. If you want a pusher fan, then you should use one designed as a pusher or as a universal pusher/puller. Also note that straight bladed fans are generally more efficient than curved blade fans, although the straight blade fans are louder.

Scott 89t2

pusher will work around 75-80% as good as the same fan pulling.

if you use it as a pusher. it won't be moving any air though the oil cooler either though.

Fingers

how would it be ANY different from a puller fan though? I don't get it. its the same exact thing. It mounts in the same damn spot, just on the other side.

Rob500

Try pushing on a string. Doesn't go very good. Pulling on the string works better. Air doesn't push as good as it pulls.

Rob

Center of The Universe

With a pusher, are you fighting the natural air flow passing throught the radiator? Kinna' makes sense on a radiator. I mean a radiator is like a big heat sink. You should have the heat pulled away. Right?

Trav

LOL, great illustration. Fluid dynamics baby -- air is a fluid just like water. Again, easier to pull water than to push it. Check out some websites on airflow, fluid dynamics, etc. I can't really explain it myself and there are people who make a living explaining it that would do a much better job.

Bottom line, it is more efficient to pull the air than to push. Most e-fans say so right in the in instructions.

Fingers

welp, i have been offered a fiero fan without the shroud for $25. I went to check it out. but decided not to buy it because without the shroud, it'd be difficult to mount since the mounting points are behind the fan. I'll just buy a good aftermarket fan Like the fingerchopper