You are browsing camaro5 
 |
|
08-11-2018, 11:37 PM
|
#1 |
 Drives: 2010 camaro LT1 RS Join Date: Oct 2017
Location: massachusettss
Posts: 36
|
How to fix drone
Hey guys I just got the flowmaster 10 series mufflers put on my 2010 v6. And in lower gears its so boomy and has drone. I have a resonated x pipe installed as well. Is there anything that will make it quieter but keep the same kind of sound
|
|
|
|
08-12-2018, 12:10 AM
|
#2 | |
|
Boosted Moderator
Drives: Bone Stock LS3 Join Date: Sep 2009
Location: Marion Tx
Posts: 15,473
  |
Quote:
Essentially and in a nut shell, you will need to find a muffler shop or fab shop willing to build you a pair of Helmholtz chambers and install them. A reputable shop will be able to tell you the length they need to be based on the RPM’s at which the drone is the loudest. You will need to perform some testing to determine the worst RPM range. So, what are these chambers. They are tubes of pipe (exhaust tubing) in most any shape installed onto your existing exhaust system pretty much anywhere past the x pipe and before the mufflers. I’m not positive about before the mufflers only, my memory isn’t what it used to be... Sound waves traveling down the exhaust pipes will partially split off and travel to the end of the Helmholtz chambers of specific length, and bounce back. These bouncing sound waves will meet the new waves and they effectively cancel each other out. I’ve attached a chart with the required lengths for a given model of 5th Gen Camaro. Here Are some threads on it previously posted. https://www.camaro5.com/forums/showt...ight=Helmholtz https://www.camaro5.com/forums/showt...ight=Helmholtz
__________________
If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
|
|
|
|
|
08-12-2018, 09:08 AM
|
#3 |
|
Started#gottalovethatblue
|
__________________
|
|
|
|
|
08-12-2018, 11:06 AM
|
#4 |
 
Drives: 2011 Camaro SS Join Date: Sep 2017
Location: Peoria
Posts: 254
|
You could also have J pipes welded in.
|
|
|
|
|
08-12-2018, 12:46 PM
|
#5 |
|
Boosted Moderator
Drives: Bone Stock LS3 Join Date: Sep 2009
Location: Marion Tx
Posts: 15,473
|
J-pipes are Helmholtz chambers. The pipes are capped on the ends. Some folks just call them helmholtz chambers and some call then J-pipes. Some of them are even a bit adjustable, though if the testing is done to determine where the drone is the loudest, then no adjustability is needed. I've seethe ads for things like this and it's sales hype to get you to buy a specific brand. A little time, 30 minutes to an hour, and use the graph to determine the length, then have the shop fab and install them and drone worries are gone.
__________________
If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
|
|
|
|
08-12-2018, 08:10 PM
|
#6 | |
 
Drives: 2015 2SS/RS Join Date: Feb 2018
Location: Poughkeepsie
Posts: 109
|
Quote:
__________________
 |
|
|
|
|
|
08-13-2018, 08:31 AM
|
#7 | |
|
Drives: 2010 camaro LT1 RS Join Date: Oct 2017
Location: massachusettss
Posts: 36
|
Quote:
|
|
|
|
|
|
08-13-2018, 04:36 PM
|
#8 | |
|
Drives: 2015 2SS/RS Join Date: Feb 2018
Location: Poughkeepsie
Posts: 109
|
Quote:
__________________
|
|
|
|
|
|
08-17-2018, 06:10 AM
|
#9 |
 
|
Sound deadener in the trunk and hip area of the car... This thing is all sheet metal. I dropped 3db by using the cheap amazon noico in the spare tire wheel well alone. Go ahead and raise that carpet up and look at all the bare sheet metal, right above your muffler.
If you take out the back seat you will see you can reach in and deaden the rear quarter panel hip area, big difference in drone and road noise. My wife drivers hers with NPP open. CAM, LSA conversion, No cats... 3db is a halving of sound (power)
__________________
2014 L99 2SS. 595HP/571ft-lbs
Mods: LSA Conversion 2.5" Upper Pulley, 65# injectors, GPI SS1 Cam, SP Long Tubes, ADM Race Scoop & CAI, NPP exhaust (DIY control), BMR 1" lowering springs, ZL1 Rear Differential / Axles, CF Side Strip / Hood Spear, Tint - Windows / Tails / Sidemarkers, Splash Guards, ADM Boost Gauge, ABL Dashkit, '68 Script Badges, ACS T4 Splitter, ZL1 Rockers from Gary's, Z28 Spoiler, Carbon Fiber Hood Vent, Summer - MRR FS01 Satin Black (10" Front 11" Rear) Winter, pictured-Drag DR 64's Satin Black (9" Front-10" Rear.)  |
|
|
|
|
08-17-2018, 04:41 PM
|
#10 | |
|
Drives: 2010 camaro LT1 RS Join Date: Oct 2017
Location: massachusettss
Posts: 36
|
Quote:
|
|
|
|
|
|
|
|
|
 |
| Thread Tools | |
|
|
