Deadening to SPL Gains in my Jeep

[sundownz Pro Seller]

You ever tried aeros vs ur slot ports?

I have not.

This is actually only the second box I've made specifically for the Jeep - the other was the previous dual sub box.

My brother and I built the single sub box over 2 years ago for a different vehicle and originally for two DD 9510s //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif I modified it for one 15" to go in the Jeep.

 

[roarzorz 10+ year member]

You ever tried aeros vs ur slot ports?

I'm working on talking him into a new box with three 6" aeros. I think the only way he's gonna do it is if I come over there and build it for him though.

 

[JEXTEL 10+ year member]

I'm working on talking him into a new box with three 6" aeros. I think the only way he's gonna do it is if I come over there and build it for him though.

make sure you make one that has internal and external ports...

 

[2003F150 10+ year member]

So you gonna do the floor soon???

 

[sundownz Pro Seller]

Interesting results with doing the second door and putting the door panels back on:

155.0 dB -- Base-Line Score this morning

154.9 dB -- Base-Line with driver door panel and vapor guard off

155.3 dB -- 1st Layer on Driver Door

155.2 dB -- Put 5.25 speaker back in (not hooked up)

154.8 dB -- Removed Passenger door panel and vapor guard

155.1 dB -- 1st Layer on Passenger Door (with speaker installed and not hooked up)

155.3 dB -- Put passenger door panel back on

155.1 dB -- Put drivers door panel back on

So... weird stuff is going on.

Frequency may have changed with both of the door panels on.

It had not changed with both door panels still off + both doors dampened but I have not went back through the frequency range since putting the panels back on.

 

[sundownz Pro Seller]

So you gonna do the floor soon???

Not sure when I will do the front floor - that would mean taking my amp rack and batteries back out again. But I did do the back floor.

 

[snb778 5,000+ posts]

so far, with the cost of deadening, it doesnt sound like its worth it if that's all you're tryin to gain with it is more db

 

[sundownz Pro Seller]

so far, with the cost of deadening, it doesnt sound like its worth it if that's all you're tryin to gain with it is more db

I think that the ~1 dB gain with doing my roof is worth as much as I paid for all of the deadener used so far in the whole project!

The doors may have gained as well - I have to go through and test various frequencies again tomorrow.

I was also not able to quantify the gains from my rear floor... as I changed alot of other things at the same time. There are going to be some gains I've missed in adding up along the way due to the fact that I still have to use this vehicle for competition almost every week so not all variables are changed one at a time.

 

[JEXTEL 10+ year member]

are you allow to fiberglass your door panels in your class?

 

[roarzorz 10+ year member]

so far, with the cost of deadening, it doesnt sound like its worth it if that's all you're tryin to gain with it is more db

He saw an immediate 1db gain with only $75 worth of deadening. That's an insanely good value in spl. Especially considering you don't have the change/upgrade/modify any other parts of the setup for it to work properly. Since then the results haven't been so great but it's all test & tune for us spl guys. Sometimes it works sometimes it don't.

I did my doors and back half of my roof & only gained 0.4db with about $140 in deadening. That's still great IMO. I'm limited equipment wise in local competitions so getting louder without more power or subs is a huge plus.

 

[sundownz Pro Seller]

There may be a bit of delay for more testing - I was working on getting air shocks installed on the rear tonight and the old bolts broke off in the frame. SO I'll have to get that all fixed up first //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[sundownz Pro Seller]

Got it //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif We torched the bolts out and got some weld-in pieces with threads from a local specialty fastener store that worked great. All new Grade-8 and/or Stainless steel fasteners used as well.

Air shocks are ON - and the Jeep is actually riding at normal height for the first time since I got it.

 

[JL Audio 5,000+ posts]

Got it //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif We torched the bolts out and got some weld-in pieces with threads from a local specialty fastener store that worked great. All new Grade-8 and/or Stainless steel fasteners used as well.
Air shocks are ON - and the Jeep is actually riding at normal height for the first time since I got it.

lol i'd say it's pretty happy then. ride with style now //content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif

 

[audioarsonal 10+ year member]

Pics.? These are the ones you just air up with an air hose correct,no onboard compressor?

 

[sundownz Pro Seller]

Pics.? These are the ones you just air up with an air hose correct,no onboard compressor?

Correct.

* Normal ride height restored!

* New threaded pieces welded in with shock bolted to them.

* Bottom of air shock

* Another view

* Valve on rear bumper.