positive pressure Too much positive pressure?

[Pcexbird]

So I have 3x140mm Noctua ippc 2000 RPM fans rated at around 107cfm each on front intake,

3x Bora lite 120mm fans in top exhaust position rated at 54 CFM each.

1x 140mm rear exhaust fan rated at 82 CFM. 

 

I'm wondering with all this intake pressure (avg 275 CFM) from high end fans, should I swap in my two 140mm fans with higher CFM in top exhaust position? And uninstall the 120s? I was aiming for equalish pressure and even with aggressive fan profiles on the exhaust fans I'm not even within 100 CFM of my intake pressure. Seems rather unbalanced IMO.

 

Additional Technical Data:

 

Static pressure of above mentioned fans are:

 

4,00 each for the 140mm front intakes x 3

 

Around 1,06 each on the 120s x 3

 

And 1,86 on the rear exhaust fan. 1x

 

Case is Phantek Evolv X

 

I could alternatively swap in two higher CFM 140s in top position or crank up my 3 120s, or just replace my exhaust fans with all higher CFM variants.

 

I like to keep my intake fans up pretty high for static pressure case restrictive reasons, that's why I'm concerned with having too much positive pressure in this scenario. 

 

Suggestions are appreciated

 

Thanks as always

 

 

 

 

[vong]

1 hour ago, Pcexbird said:

 

Changing the top exhaust fans ain't gonna do much since that case's top is so restrictive. Why are you so concerned about their max CFM? Are you running them all at 100% during gaming or something?

[Pcexbird]

I'm actually tempted to build in my node 804 again just was worried about temps. I guess if I fit the fans I was gonna put in the Evolv I could save a couple hundred bucks

[LogicalDrm]

5 hours ago, Pcexbird said:

I'm actually tempted to build in my node 804 again just was worried about temps. I guess if I fit the fans I was gonna put in the Evolv I could save a couple hundred bucks

Then what are the temps and why you are worried? Pressure inside the case doesn't have much to do with temps. Constant airflow towards parts that need cooling is much more relevant. Pressure is more about how dust accumulates and where.