which is better... push or pull?

[.:Burn:.]

i have a mcr320 and 220 and was just curious. is it better to have fans pushing air through the radiators or pulling? or does it matter at all?

 

[E.E.L. Ambiense]

Whatever's more convenient for the setup.

Everyone who's been around a while in w/c is going to chime in with their thoughts, but I prefer pull myself.

Could split the difference and use both though, assuming you have the room.

 

[Fafeifa]

Push for fast fans of over +1800rpm, -1300rpm pull works better and doesn't matter if it lies in between.

 

[.:Burn:.]

ive been wanting to do push/pull on my mcr320, just need to get some 45* fitting and some more fans

 

[TehQuick]

push is a little better

 

[.:Burn:.]

ok. thanks for that link

 

[punkrockpolak]

push is a little better

Like Fafeifa said, push is only better at higher rpm. Pull is better at lower rpm. It even shows that in your linked review

 

[TehQuick]

Like Fafeifa said, push is only better at higher rpm. Pull is better at lower rpm. It even shows that in your linked review

That's why I linked it

 

[.:Burn:.]

why is it that adding shrouds increase performance?

 

[Main]

why is it that adding shrouds increase performance?

To decrease the deadspot that the fan's motor represents - theoretical stuff mostly - I do not see any difference

A pity that they stopped producing them fans that had the motor in the outer ring, I heard that it was a marine thruster producer that bought the patent. Those fans were hypereffective (speed vs. output) since the impeller was a full face with no motor in the middle. I had one... maybe I still have it somewhere in my "messy" computerworkshop

 

[bmaverick]

Push if you have a 1 or 2 inch shroud between the fan and rad. Pull if you need to fit in a tight space.

Push needs the shroud gap to overcome the resistance pressure build up of the fan air flow.

 

[Fafeifa]

with the cost of the shroud and the space utilized you are better off using another set for push/pull.

 

[rjolin01]

when oyu guys ssay push/pull are you saying have one fan blowing on one side and one pulling on the otherside in the same spot, which would be 4 fans for a 2x120 rad? Or just 2 fans total, on pushing on one spot and the other pulling on the other spot? Sorry if I am just missing the obvious here its early.

 

[Delemon]

Push/pull on an MCR220 would have two fans pushing and two fans pulling. 3 and 3 for an MCR320.

 

[DiMeLo]

I always wondered myself which one was better. Thanks for the info.