I'm starting to build the new box for my G5s. It will be for a daily driver, but it will see competition time too. I got the design from a shop close to my parents house, the guy who did the design says he holds the record in meca street 5 at 160.9 and there is a special piece inside that should help with the airflow but its a secret. Here's my old box:
I have no clue how to use sketchup or any sort of cad program, so I do all my designing by hand. This is what the box will look like lol:
4cu/ft tuned around 31.5hz, with a 6inch pvc port that will be removeable and I will have 2 other port tunes to swap in as well.
Here is the wood laid out so far
Also this is my first build involving 45 pieces in the corners, wow they are a pita to cut, but not as hard as I thought.
An interesting note- according to winisd, my old box had a vent mach of .05 with 2 4inch ports (3.9@33hz) and the new box has a vent mach of .10 ([email protected]), the 6inch port even has slightly more surface area, whats up with that?