HELP! Stop the rattle.

E90SoFlo · 11-23-2011, 03:32 AM

I need suggestions. I have the trunk dyna-matted. but its still sounds like a honda.

Need suggestions for the trunk to get it to stop loosening up.

and for the damn gas cap. I have taken out the magnetic thing because it breaks within 5 minutes of putting a new one in, need a alternative. (already have it velcro'd and dyna-matted)

Bumping 2 12" L7's.

TMR · 11-23-2011, 04:15 AM

I have 2 15" subs in my M3 and it was also in my 335 and my car barely, and i mean barely rattles. Maybe because i have a VRS decklid?

E90SoFlo · 11-23-2011, 10:32 AM

Quote:

Originally Posted by TMR

I have 2 15" subs in my M3 and it was also in my 335 and my car barely, and i mean barely rattles. Maybe because i have a VRS decklid?

Really? I'm getting like major flex on the entire car, including the back window.

How did you keep the gas cap from breaking?

TMR · 11-23-2011, 05:14 PM

Quote:

Originally Posted by E90SoFlo

Quote:

Originally Posted by TMR

I have 2 15" subs in my M3 and it was also in my 335 and my car barely, and i mean barely rattles. Maybe because i have a VRS decklid?

Really? I'm getting like major flex on the entire car, including the back window.

How did you keep the gas cap from breaking?

My gas cap hasn't broke at all.

fdriller9 · 11-23-2011, 07:28 PM

It sounds like the OP likes loud boomy bass and TMR likes tight accurate bass. That's why he has no rattles.

I don't get much rattles either with my sub setup but I only have a single 12" type-r.

TMR · 11-24-2011, 03:03 AM

Quote:

Originally Posted by *********

It sounds like the OP likes loud boomy bass and TMR likes tight accurate bass. That's why he has no rattles.

I don't get much rattles either with my sub setup but I only have a single 12" type-r.

I think more because of how my setup is. I did an SPL on it the other day to see what it will do and it hit 145db so it definitely gets loud when needed.

Are you firing your subs into the trunk or towards the seat? Are you E90 or E92? How much power for your subs?

E90SoFlo · 11-24-2011, 09:54 AM

Quote:

Originally Posted by TMR

I think more because of how my setup is. I did an SPL on it the other day to see what it will do and it hit 145db so it definitely gets loud when needed.

Are you firing your subs into the trunk or towards the seat? Are you E90 or E92? How much power for your subs?

Im firing them away from the seats, and Im running the kicker zx 1500 amp.

And i figured you would guess I was a E90 from my name.. lol

E90SoFlo · 11-24-2011, 10:02 AM

Quote:

Originally Posted by TMR

My gas cap hasn't broke at all.

Not the gas cap, but the magnetic piece that "clicks" it open/close

kaigoss69 · 11-24-2011, 10:17 AM

Trunk rattle is a result of improper orientation AND placement of the woofer(s) inside the trunk. The more it rattles, the more energy is absorbed by the panels and the less sound is heard and felt inside the cabin. I have found that when using a standard subwoofer enclosure, there is practically no way of preventing the majority of the energy staying inside the trunk and being converted to annoying rattles.

The only solutions I am aware of are 1) corner-loading and b) free-air. Corner loading is what I am using now and I am kicking myself for having wasted thousands of dollars in the past for huge subwoofers, enclosures and amps, when you can have much better results for less money using a properly designed enclosure in the rear corner of the trunk, with a single driver and half of the power. Free air (or IB) I have no personal experience with, but I have read that it is very efficient and produces very little rattles, when PROPERLY installed. I believe TMR has a free-air set-up.

E90SoFlo · 11-24-2011, 07:39 PM

Kai, I see what your saying.

Im using a ported box which makes it even worst I'm sure, But I really am trying to use what I have.

11-23-2011, 03:32 AM	#1
E90SoFlo Banned 196 Rep 2,669 Posts Drives: E90 335i Join Date: Jun 2011 Location: Naples, FL iTrader: (9)	HELP! Stop the rattle. I need suggestions. I have the trunk dyna-matted. but its still sounds like a honda. Need suggestions for the trunk to get it to stop loosening up. and for the damn gas cap. I have taken out the magnetic thing because it breaks within 5 minutes of putting a new one in, need a alternative. (already have it velcro'd and dyna-matted) Bumping 2 12" L7's.
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11-23-2011, 04:15 AM	#2
TMR Brigadier General 394 Rep 3,161 Posts Drives: M3 Join Date: Jun 2008 Location: Torrance iTrader: (12)	I have 2 15" subs in my M3 and it was also in my 335 and my car barely, and i mean barely rattles. Maybe because i have a VRS decklid? __________________ 2015 M3 BPM Tuned, Eibach, Magnaflow and more www.tmrmzine.com/m3/f80 SOLD E92 Slēk Carbon Fiber Widebody M3 www.tmrmzine.com/m3/slek/ SOLD E92 335i Stage 3+ with all the toys www.tmrmzine.com/335/ SOLD E39 M5 Modded, What a great car! www.tmrmzine.com/m5/
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11-23-2011, 07:28 PM	#5
fdriller9 Banned 253 Rep 7,089 Posts Drives: '06 AW 330xi Join Date: Mar 2009 Location: North Jersey/Philly/NYC iTrader: (4) Garage List 2006 330xi [6.44]	It sounds like the OP likes loud boomy bass and TMR likes tight accurate bass. That's why he has no rattles. I don't get much rattles either with my sub setup but I only have a single 12" type-r.
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11-24-2011, 10:17 AM	#9
kaigoss69 Brigadier General 300 Rep 3,969 Posts Drives: '08 335i Join Date: Jul 2008 Location: JAX iTrader: (6)	Trunk rattle is a result of improper orientation AND placement of the woofer(s) inside the trunk. The more it rattles, the more energy is absorbed by the panels and the less sound is heard and felt inside the cabin. I have found that when using a standard subwoofer enclosure, there is practically no way of preventing the majority of the energy staying inside the trunk and being converted to annoying rattles. The only solutions I am aware of are 1) corner-loading and b) free-air. Corner loading is what I am using now and I am kicking myself for having wasted thousands of dollars in the past for huge subwoofers, enclosures and amps, when you can have much better results for less money using a properly designed enclosure in the rear corner of the trunk, with a single driver and half of the power. Free air (or IB) I have no personal experience with, but I have read that it is very efficient and produces very little rattles, when PROPERLY installed. I believe TMR has a free-air set-up. __________________ Mobridge DA2 > JBL MS-8 > ARC XDi 600/4 > JBL Gti 408 Mids & Vifa OT19 Tweeters; PG Ti2 1600.5 > Morel HCW-10 & IDMax 15
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11-24-2011, 07:39 PM	#10
E90SoFlo Banned 196 Rep 2,669 Posts Drives: E90 335i Join Date: Jun 2011 Location: Naples, FL iTrader: (9)	Kai, I see what your saying. Im using a ported box which makes it even worst I'm sure, But I really am trying to use what I have.
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