FPI v Fan speeds needed

Soldato
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in the course of my ongoing research in preparation for my first adventure in to watercooling I have been reading about FPI and fans.

Would the following statement be correct (assuming here that the higher RPM fans have higher pressure / shift more air)

low FPI = can use lower fan speeds
high FPI = faster fans speeds

if this is in general correct, is there a table or document somewhere that details approx recomended RPM v FPI.

Example I am looking at a rad with 20FPI and another one with 30FPI but I have no idea what sort of RPM i would need for that. I initially though I;d just go for some of those mad 5400rpm scythe fans, but after listening to a vid of how loud they are even when under volted I am not sure I could tolerate the ear bleeding.

For a 9 FPI rad I would think something like gentle typhoon at 1400 or a bitfenix spectre would fit the bill ?
 
From reading the figures on my new fans, the higher the rpm, the lower the static pressure, it seems the highest static pressure reading is almost when the fan is at its lowest rpm?
 
From reading the figures on my new fans, the higher the rpm, the lower the static pressure, it seems the highest static pressure reading is almost when the fan is at its lowest rpm?

Im sure the fan blade has more to do with static pressure. What fans are you using, because they sound like they make quite an interesting read. lol

I suggest going for 1850 GT's like suggested or corsairs SP120 HP WITH something to control the fan speed. The SP's offer crazy cooling but are louder than the GT's. To be honest though, if the GT's aren't enough, the sp120's wont be.
 
I agree the blade makes a difference, all I meant was that as a principle of any fan, the rated static pressure is higher when the rpm is lower and drops of when the fan throws all the air it can :)

Just an observation really as I'd never seen it mentioned before :)
 
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