Originally Posted by jdmferio13
Also its subs up port to side.
okay that makes more sense. but none the less, they can still only be 18" long tops. which goes in as 17" on the calculators. 3 full length (18") 4" ports would yield 4.03 cubic feet net and a tuning of between 33-34. IMO adding one more aero for spl wont do TOO much unless you're car peaks in the 30's; unlikely. i say this because adding a 4th would only increase tuning to 39 hz or so. and typically, you'd burp a bit under tuning with an aero for increased port velocity, so you'd be burping at like 35hz. thats not benfical to me. i had a box VERY similar to what you're designing. it was 4cubes net. 3 4" aeros for daily, and 5 for comps. i liked having 5 also because i could plug one to have a tuning of around 40hz and play the popular demo songs very well. just a thought
4th 2012 Db Drag WF Street Stock 150.8db
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