Jayhovah's fiberglass sub box build log

370Chicago

Looks great, can't wait to see the finished product. I might have missed this, but how do you plan to anchor it?

Jayhovah

BoneZ!!!!!!! The tip about the milkshake is going to be key. I installed the sub, sprayed soapy water all over the enclosure, pressed on the cone and BAM! Imperceptibly tiny pin holes like EVERYWHERE. Will definitely be picking up some extra body filler and resin tomorrow. Can't imagine how this might have affected previous enclosures... though previous enclosures included a lot more layers as they were much much larger.
I have no idea. I am going to wrap the sides with some foam and hope it fits in tightly enough to stay put.

If I anchor it to a panel I'll need to mod the trunk mats to ensure I can access the spare tire.

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2013 Gun Metallic Sport - Gamma V3 Twin Turbogized
DIY Gamma V3 TT Install * Jayhovah's Gamma V3 TT Install Pic'Z and Vid'Z * DIY: Washer Reservoir for the Boosted

BoneZ

Awesome. In my experience, I had to use less hardener than I expected. I used the liquid from the resin, not the paste from the Bondo. My first shake turned into a bowling ball before I could get it into the enclosure. Need to keep it flowing for a bit to soak into all the crannies.

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Jayhovah

Thanks! Did you mix 50/50? What consistency did you go for? Runny at all? Or just tilt the box and watch it slowly slide around?

I've also thinned body filler down with acetone in the past and it works GREAT. I could probably get it much thinner than I could with resin but I may go with the resin just for the added stiffness.

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2013 Gun Metallic Sport - Gamma V3 Twin Turbogized
DIY Gamma V3 TT Install * Jayhovah's Gamma V3 TT Install Pic'Z and Vid'Z * DIY: Washer Reservoir for the Boosted

BoneZ

I just added Bondo to the resin until it created a thick yet decent flowing consistency. Definitely thin enough to flow around the Box when tilted.

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redondoaveb

Question from the audio challenged. I know you're fabricating a sealed enclosure but is it critical to seal the pin holes?

Jayhovah

For sure!! I have seen cones tear from the resistance of having to push/pull air through the pin holes. Even if it isn't that catastrophic, it's going to distort the sound.

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2013 Gun Metallic Sport - Gamma V3 Twin Turbogized
DIY Gamma V3 TT Install * Jayhovah's Gamma V3 TT Install Pic'Z and Vid'Z * DIY: Washer Reservoir for the Boosted

RonRizz

Please anchor the subs in a solid fashion. A friend of mine had a box in his hatch mounted with Velcro. one night someone ran him off the road into a ditch. He would have came off with barely a scratch if it wasn't for the sub box getting him in the back of the head, which in turn put his face into the steering wheel. Split him open like a ripe watermelon, and pushed 4 teeth through his lower lip... Luckily, he wasn't killed by it.
even if its just a strap to hold it down, for gods sake, make it SOLID.

this is the end of our public service announcement.

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P99rs Head Unit--- Amps- 2 Pioneer Prs800d --- Zapco ST1000MX---Zapco ST-4XSQ---- SI BM mk5 Subs---SI TM65v2 Midbass--- SI M3 mids--- SI M25 xbl2 tweeters ----- 2016 MECA street class 3rd place at world finals

Jayhovah

Any ideas on how I might anchor this one?

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2013 Gun Metallic Sport - Gamma V3 Twin Turbogized
DIY Gamma V3 TT Install * Jayhovah's Gamma V3 TT Install Pic'Z and Vid'Z * DIY: Washer Reservoir for the Boosted