Quote:
Originally posted by bigben2k
That's about right.
The area of inlet for a 1/4 nozzle is 31.67 mm^2. Take out the center fins (1.5 by 6.35 twice, minus 1.5^2)...31.67-16.8 is... about 15 mm^2 for inlet area (minus those tiny tips). That's about the equivalent area to a 3/16 nozzle, but it needs to be recalculated for its hydraulic equivalent: it's actually more restrictive than a round nozzle.
17/32 is another good nozzle size. Anything 3/8 or less would also work well, theoretically, but anything in between is a no-no:shrug: (I charted everything in 1/32 increments)
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3/16 is what i'v been working with and using in my current block im using now. It's restrictive but doesn't seem to hurt flow to badly. Temps are not bad. With out it my temps jump a bit by 2-3C. You have to find a size that overcomes the restriction of your fins. That seems to be the hard trial and error part for me.