The cure for drone-- 1/4 resonance pipes aka J-pipes aka Helmholtz tubes
08-27-2015, 05:54 AM
#41
On The Tree
Join Date: Jan 2012
Posts: 134
Likes: 0
Received 0 Likes
on
0 Posts
I have had corsa on trucks,cars u name it , never any drone at all.
Last edited by cammedv; 08-27-2015 at 06:00 AM.
08-27-2015, 07:14 PM
#44
Teching In
Join Date: Jul 2010
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
Well,.....here's a set that was installed on a CTS-V Coupe successfully.
A little work and all can be well (if that's what you want). Only one end of the chamber is open to the exhaust pipe.
Stock muffler for comparison. Which would you want under your ride?
A little work and all can be well (if that's what you want). Only one end of the chamber is open to the exhaust pipe.
Stock muffler for comparison. Which would you want under your ride?
08-30-2015, 10:41 PM
#46
The cure for drone-- 1/4 resonance pipes aka J-pipes aka Helmholtz tubes
Originally Posted by NIKDSC5
1st. world. problems. I look at drone like this, if you don't want it, do modify the car. But if you do modify the car, don't expect it not to drone.....ever heard the drone inside of a ferrari?
09-03-2015, 06:03 AM
#47
Looks like good work, OP. I can't help but look at that picture and think that AIR is flowing into that dead end though. The way the J Pipes come off that bend makes it an almost perfectly straight line for airflow to follow. I'm no aerodynamics doctor, but that's got to cause some sort of restriction. Turbulence, at least. I'm glad it solved your drone issues, but this might have been at the cost of performance, no?
Last edited by wes8398; 09-03-2015 at 06:08 AM.
10-03-2015, 07:03 PM
#48
Teching In
Join Date: Jul 2010
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
Once the closed-off tubes are filled with exhaust gas, they are essentially a pressurized chamber and do not flow back into the pipe. You are right, in a way, that the more efficient location for the j-pipe connection is on the backside, away from the exhaust flow (if you have room).
10-06-2015, 03:33 PM
#50
On The Tree
Join Date: Jan 2012
Posts: 134
Likes: 0
Received 0 Likes
on
0 Posts
10-06-2015, 04:30 PM
#51
Teching In
Join Date: Jul 2010
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
Ever seen a Corsa muffler split open? A lot of noise-cancelling magic going on in there, for sure.
https://www.google.com/search?q=cors...h=648&dpr=1.36
https://www.google.com/search?q=cors...h=648&dpr=1.36
06-23-2016, 09:52 AM
#53
Magnaflow Warranty and Drone Would adding a bullet muffler underneath the car help with the noise level and the drone? Is there even room on a magnaflow 15684 system?
PS: Magnaflow's "Lifetime Warranty" is complete crap. They make you take off and ship your entire system back to them for a warranty check. Also got the run around from the support. I cannot recommend Magnaflow to anyone. Beware!
PS: Magnaflow's "Lifetime Warranty" is complete crap. They make you take off and ship your entire system back to them for a warranty check. Also got the run around from the support. I cannot recommend Magnaflow to anyone. Beware!
06-23-2016, 10:22 AM
#54
Originally Posted by BigBlueLB756
Ever seen a Corsa muffler split open? A lot of noise-cancelling magic going on in there, for sure.
https://www.google.com/search?q=cors...h=648&dpr=1.36
https://www.google.com/search?q=cors...h=648&dpr=1.36
Originally Posted by BUKSING
I learnt through several systems they dont dont work, and turnin the radio up or opennin the window doesnt work.
06-23-2016, 11:18 AM
#55
On The Tree
). I have a Corsa Sport Cat-back (with the resonator) and have ran it with Stock manifolds/cats, stock manifolds/high-flow cats, and catless Pacesetter LT's and all have yielded zero drone. I'm actually amazed how loud it can get in the top end and not have drone....
06-24-2016, 08:43 AM
#59
Its not about winning or losing around here. Its about giving your opinions and letting everybody else figure it out.
If Voodoo says he's c6 system is perfect, I believe him. If you say yours sucked on all the vehicles you listed above, I believe that too. But nobody here is and exhaust system designer or sound engineer so its opinion at best.
It's not hard to believe that certain exhaust systems work better on some cars than on others. More reason for me to keep the stock setup.
If Voodoo says he's c6 system is perfect, I believe him. If you say yours sucked on all the vehicles you listed above, I believe that too. But nobody here is and exhaust system designer or sound engineer so its opinion at best.
It's not hard to believe that certain exhaust systems work better on some cars than on others. More reason for me to keep the stock setup.
06-24-2016, 10:42 AM
#60
Its a tolerance of volume.
Like cam choices i like a cam i can sit in traffic and not shake the soda out of my can.
Others like to see their boobies shake...
My new volume level is closed windows and music off. If i can have a conversation with the person next to me it passes. If i cant then its too loud.
Had my share of earth shakin exhausts where if the windows were closed my head was gonna pop from the sound pressures...
Like cam choices i like a cam i can sit in traffic and not shake the soda out of my can.
Others like to see their boobies shake...
My new volume level is closed windows and music off. If i can have a conversation with the person next to me it passes. If i cant then its too loud.
Had my share of earth shakin exhausts where if the windows were closed my head was gonna pop from the sound pressures...