Whilst trying to overcome a bout or boredness this afternoon I began reading an old book I have on Mini tuning (the cars in the original Italian Job) when I came across a chapter on intake tuning and the effect of different radii on the bellmouths of carbs. So I was thinking if an aeroport is regarded as better than a length of pvc pipe because of those nice flaired ends, and all the aeroports that I have seen seem to have the same radius on the ends what would happen if some more extreme flares and radii were used? Could this be something worth exploring?
yeah I know what you meant with flared ports. that's to reduce or prevent port-whistle, which is a very annoying high-pitched whistling sound you'll get at medium to high volume in vented boxes. never hurts to use them if ya can. also be sure you use large enough ports. minimum 3"ID for 10" and smaller, 4"ID for 12" subs, and 6"ID for 15" and larger. that helps tremendously in reducing whistle as well.