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Originally Posted by Marci
Yup - hence we use 3/8" on ThermoChill rads...
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Indeed (and my PA.160 is excellent by the way
). Considering that they have the room, I've no idea why on earth they've gone to 1/4" when 3/8" gives them a heck of a lot more flexibility in terms of barb choice without the pressure drop penalty of a smaller aperture.
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Originally Posted by Cathar
The alternative would've been to just use 7/16" ID tubing on the hi-flow barbs.
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I did think about that, but I didn't realise how bad the hi-flow barbs were for sealing (particularly when the tube is coming in at an angle, as for graphics cards) until rather too late. Besides, ignoring any effort involved in retapping the holes the trade-off to be made is between weight/volume and performance. As weight is a non-issue (the case also has a hell of a lot of sound damping material in it) and the case (Silverstone TJ-06) isn't volume limited, 1/2" ID gives me a bit of extra performance without a "cost" that bothers me. As in my case I'm exchanging performance for dBA, moving to 1/2" is close to getting something for nothing.
For most people it makes sense, but when you're going to the trouble of running AC into your case just for the fans it isn't worth it...