how to install heimholtz chamber or cutouts?

aresh · 07-30-2012, 02:32 AM

Watsup guys, i currently have a full cat-less exhaust and while it sounds amazing it has a bit of drone. How do i go about telling my exhaust guys how to install a heimholtz chamber or even some cutouts? Is there any guide or something i can show them about the length needed or where to place them? Any help is much appreciated.

aus · 07-30-2012, 10:23 AM

Your exhaust shop will have to figure it out. They'll have to see if there's enough space to weld in a couple chamber like on the AA exhaust.

aresh · 07-30-2012, 11:35 AM

Yea I know that but what are the components in a heimholtz chamber and how long is it suppose to be. I wish I had exact specs for the AA, so I could mimic it.

aus · 07-30-2012, 02:31 PM

They're no secret. Any good shop should know about them.

.

aresh · 07-30-2012, 03:35 PM

I called the muffler shops and only one knew what I was talking about but I have to suppy the parts. So which resonator do I buy? And how long should the tubing extend to?

m3an · 07-30-2012, 04:49 PM

do a google search. There's plenty of info, specifically on pontiac g8 forums.

You don't need a resonator, you need a straight section of pipe and a cap to weld one side closed.

aresh · 08-04-2012, 02:16 PM

Thanks but what about specifics for your exhaust systems? Like how long should the pipe extend on the e92?

m3an · 08-04-2012, 05:27 PM

Quote:

Originally Posted by aresh

Thanks but what about specifics for your exhaust systems? Like how long should the pipe extend on the e92?

Theres actually a formula to figure out the length of pipe needed but I have no idea what it is. You can also weld an open ended pipe on and then slip a bigger one over it to play with the length to find out what's best. Then just weld it there.

As said before do a search specifically on the g8 boards as alot of guys have made heimholtz pipes wit great results eliminating drone. The formula for the correct length is also on that forum and I'm sure a goggle search will give you what you need

M3PO · 08-06-2012, 01:12 PM

Heimholtz chambers need to be tuned. It's not a simple matter. From my knowledge of pressure and flows (I'm a mech. eng.), you could actually make it worse if you do it wrong.

aresh · 08-06-2012, 05:46 PM

Quote:

Originally Posted by M3PO

Heimholtz chambers need to be tuned. It's not a simple matter. From my knowledge of pressure and flows (I'm a mech. eng.), you could actually make it worse if you do it wrong.

Exactly thats why I'm ask long for specifics on how to do this for our cars.

m3an · 08-06-2012, 06:35 PM

Google it; it's been days and you're not gonna get the answer you're looking for one here. There's tons of info from the G8 boards from guys who do this when they run muffler deletes. Although said before, it is very unlikely you're gonna make it worse from trial and error. If you don't feel comfortable experimenting, find the formula and calculate the length of pipe needed.

07-30-2012, 02:32 AM	#1
aresh First Lieutenant 31 Rep 369 Posts Drives: 2006 550i Join Date: May 2009 Location: NY iTrader: (1)	how to install heimholtz chamber or cutouts? Watsup guys, i currently have a full cat-less exhaust and while it sounds amazing it has a bit of drone. How do i go about telling my exhaust guys how to install a heimholtz chamber or even some cutouts? Is there any guide or something i can show them about the length needed or where to place them? Any help is much appreciated.
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07-30-2012, 10:23 AM	#2
aus Major General 892 Rep 9,032 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	Your exhaust shop will have to figure it out. They'll have to see if there's enough space to weld in a couple chamber like on the AA exhaust. __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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07-30-2012, 11:35 AM	#3
aresh First Lieutenant 31 Rep 369 Posts Drives: 2006 550i Join Date: May 2009 Location: NY iTrader: (1)	Yea I know that but what are the components in a heimholtz chamber and how long is it suppose to be. I wish I had exact specs for the AA, so I could mimic it.
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07-30-2012, 02:31 PM	#4
aus Major General 892 Rep 9,032 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	They're no secret. Any good shop should know about them. . __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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07-30-2012, 03:35 PM	#5
aresh First Lieutenant 31 Rep 369 Posts Drives: 2006 550i Join Date: May 2009 Location: NY iTrader: (1)	I called the muffler shops and only one knew what I was talking about but I have to suppy the parts. So which resonator do I buy? And how long should the tubing extend to?
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07-30-2012, 04:49 PM	#6
m3an Banned 39 Rep 1,590 Posts Drives: M3 Join Date: Oct 2010 Location: South Florida iTrader: (2)	do a google search. There's plenty of info, specifically on pontiac g8 forums. You don't need a resonator, you need a straight section of pipe and a cap to weld one side closed.
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08-04-2012, 02:16 PM	#7
aresh First Lieutenant 31 Rep 369 Posts Drives: 2006 550i Join Date: May 2009 Location: NY iTrader: (1)	Thanks but what about specifics for your exhaust systems? Like how long should the pipe extend on the e92?
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08-06-2012, 01:12 PM	#9
M3PO Colonel 84 Rep 2,792 Posts Drives: '08 IB E92 Join Date: Sep 2011 Location: OC iTrader: (7)	Heimholtz chambers need to be tuned. It's not a simple matter. From my knowledge of pressure and flows (I'm a mech. eng.), you could actually make it worse if you do it wrong. __________________ 2008 IB E92 M3\| BBS \| KW \| Arkym \| Platte Forme A.G. \| Active Autowerke \| K&N \| Fabspeed \| Dinan \| Evolve-R
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08-06-2012, 06:35 PM	#11
m3an Banned 39 Rep 1,590 Posts Drives: M3 Join Date: Oct 2010 Location: South Florida iTrader: (2)	Google it; it's been days and you're not gonna get the answer you're looking for one here. There's tons of info from the G8 boards from guys who do this when they run muffler deletes. Although said before, it is very unlikely you're gonna make it worse from trial and error. If you don't feel comfortable experimenting, find the formula and calculate the length of pipe needed.
	Appreciate 0 Quote