ehall8702 Posted March 13, 2020 Report Share Posted March 13, 2020 I'd like to know how to calculate port area/length of a t shaped port and maybe dual slot ports in same net volume. For a t shaped port that is 3" wide would you put the "T" 3" from rear wall or drop to 1.5" from rear wall and divide top of t length by 2 to figure total port length? Any guidance would be awesome, links pics tutorials whatever. I'd like to be able to calculate and fabricate something like this should I need to and not question my numbers or guess at the tuning and output. Thanx in advance , I have alot to learn still but being a part of this site has upped my knowledge ALOT! 2009 Silverado 1500, 7.5" lift, 37x12.50r17s, Built Gen 4 5.3L ( 4.8l flat pistons, decked 243s, SS2 Cam, Pac 1218 springs, ported intake, 120mm TB, Long tubes, 3" duals HP tuner software tuned by me), 4l80e swapped and 4.56 gears. All done by me. stereo is Pioneer avh 600ex, all stinger rca, jp23 v1.5, skar rp150.4, and hertz hpd4. 2 SHCA 6.5 8ohm, 1 SHCA 3.5", and 1 DS18 tw120pro in each door. The 3.5 mid and 3.5" tweeters are powered by the skar rp150.4, the 6.5s are powered by the hertz bridged @4 ohms. Dual runs of 3/0 welding cable, 300a alternator, 2 Vmax AGMs up front. current sub is a AB XR 12 ( dual 2 ohm) with bottom spider cut out in 2.25 cubes at 32hz Link to comment Share on other sites More sharing options...
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