Mazda 3 Trunk Build 153.9 dB 2 DC XL15's

[BassHead810]

Amazing wood working man and great work all together. Your set up is sick!

Thanks alot man I appreciate all the comments

Last time I saw your car it had the octagon port in Pottsville. What do you want to accomplish over thanksgiving break?

I can't wait to hear the circular port!

Haha I'm not sure I think we could get your car louder. As for me I have a few things I wanna try sometime. I think I can get louder at 17.

Yeah you gotta hear it

NICE EFFING BUILD! I love the port! Sick as hell man!

Thanks! Wait till you see the new port! Pics coming soon

[scooter99]

Well in that case....................

[the_garynator]

Beautiful box man...Mad skills!

[BassHead810]

So now that the show was over I had some time to do some testing over the next few days.

I shortened the port a bit to increase the tuning.

New score

Movin on up

Did some more tests the next evening. Fully charged battery, colder, and I routered back of port.

Getting very close to that 150 sealed on the dash!!

Went to the regional dB drag 3x event in Mansfield Ohio and took 1st.

Two weeks left until dB Drag World Finals in Indy. Still need to get louder. I wanted to try my other idea for a port.

I work in a paper converting plant and we have lots of machines that make notebooks etc. The printer sleeves that put the lines on a notebook gets shipped in a 10" cardboard tube. I saw it and asked if I could have the tube. This tube still had a purpose as far as I was concerned.

Here it is in my car on the way home (no I couldn't bass that day )

With a little resin and some woodworking I figured I could make an attempt at a 10" aeroport.

First I coated the inside and outside with resin. I added 2 layers of cloth to the outside to give it more strength.

Then I cut it off to the appropriate length and made a 3/4" ring to go around the outside. Apply more resin

This will be the rear flare. Since the port is so big the flare will have to be against the edge of the box, hence the reason I cut it with a flat spot.

Here I'm checking the size and fit of the pieces I will use for the rear flare.

I also attached the front of the port to a new removable plate the same size as the old port front plate.

Looks good, time for some glue.

We didn't have time to sit around waiting for glue to dry. It was the last few days before world finals and we still had alot of work to do so here's what we came up with lol

Bass Cake Recipe

1) Set oven to warm

2) Insert port flare

3) Set timer for 60 minutes

4) Check every 10-15 minutes and remove flare when glue becomes a golden brown.

5) Remove and enjoy your Loud Bass

Routing the rear flare. We also shortened it for a better tuning.

The rear flare is just a friction fit for now. Last step will be to resin it all together.

Now its looking like a port!

Time for a test run

OHHHH SHITTTT look at that!!!

[cjvue]

My god!

[BassHead810]

I'm so pumped at this point! I never imagined I could do that with "SQ" subs. But I think there is still more to be gained.

I need to resin this port and give it a finished look. I think I will eventually paint the tube but I wont have time before world finals.

Getting ready to resin. Note the size comparison with a roll of Gorilla Zoe tape.

I also wanted to be able to play 17hz if anybody wanted to hear it at finals. So I made yet another removable port plate, this one with 2 4" aeroports with a homemade coupler and front flare all in one. I got a 4" port plug from Grainger - thanks Alero King for giving me a heads up on those things. I'll show the configuration for that on down.

Putting a final coat of resin on all the ports. Mmm glazed donuts...

The ports after they're sanded smooth and polished. I Love it!

Put the all-thread in for bracing.

Got the port back in

Even got the panels in

Here's the other setup. I can plug the bottom port and put an extension in the top to play 17hz at 146dB.

OR I could add a few inches of length and tune a little lower by inserting a flare from the aeroports

Here's the setup for playing 17hz

Back to the 10" port.. we gotta test it now that everything is all finished up and tidy.

Note: The last time we tested and did 150.16 the volume wasn't even at full tilt. There's still at least a few hundred watts left to go.

Here's the best number we saw before leaving for Indy

This was with me sitting on the back window and Jarred sitting on the windshield.

Sealed on the dash of course. Clamped at 1800 watts! 44hz

[Jordan Guess]

there she blows!

[BassHead810]

Here's what I did at dB Drag finals in Indy with this setup.

Street Stock Class - 150.9 at 45hz

Good enough for 2nd place! Only car louder was a CRX, although 2nd through 4th were all within a few tenths. I guess all that testing was worth it

I'm not 100% sure but I think its the loudest trunk in the world using JL Audio subs/amps. If someone knows of a louder score and proof please let me know.

Barely fits in my car!

Build log is now up to date. I hope to make some vids soon

[taylorpro]

awesome job again jordan. look forward to talking with you and jarred at some local shows in the summer

[BassHead810]

Beautiful box man...Mad skills!

Thanks alot, it took ALOT of time you have no idea haha but it paid off.

My god!

That's what I said! lol but it was more like.. "OHHH MYYY GAWW"!!!

awesome job again jordan. look forward to talking with you and jarred at some local shows in the summer

Thanks again Taylor and yeah we'll def have to get together at some shows. How far are you from Carlisle PA? Its a pretty cool 3x show