QUOTE(pristine @ Jul 30 2014, 06:34 PM)
I think with both rads pushing air out of the case, the rads might not get sufficient cooling. You kinda starve the fans from air.

Pushing air into your case from both sides will give your rads enough cool air. Your issue will be with dust.
One rad pushing in and the other pushing out will have one rad with reduced efficiency coz it'll be using exhaust air from the other rad. But if you use the 280 side to draw air in and push it towards your 560, that would be fine.
I doubt the RPM of your fans matter.
i considered that.
tested bro rig with single gtx560. thats a lot of heat from similar setup.
it will make the 280 mute.
looks like gonna do both air push in. demciflex filter on the 560 and use a few silverstone 140 filters on the 280.
like u said overtime.. its impossible to clean inside radiators without removing the whole psu.
looks like this is the con for this case.
think got enough info. did the measurements, drawings, calculation etc.. hopefully it will pan out. now just waiting for ezzy to get back to work to cod with me the ek blocks etc. lol. i actually took off till end of the weekend thinking he will be in, so could have completed the build by sunday.
also will do the whole test on soft tubing first and see how everything works out and only go to hard tubing after its running perfect.