help!!!!bad drone sound with new duals
02-14-2006, 12:24 AM
#3
6th Gear Member
Join Date: Jul 2005
Posts: 5,172
RE: help!!!!bad drone sound with new duals
ORIGINAL: GOVOLS
Just had duals put on my v6 with flowmasters and h pipe bad drone sound at 1800-2200 rpm any fix for this? will this get better as the mufflers break in?
Just had duals put on my v6 with flowmasters and h pipe bad drone sound at 1800-2200 rpm any fix for this? will this get better as the mufflers break in?
02-14-2006, 12:45 AM
#4
2nd Gear Member
Join Date: Dec 2005
Location:
Posts: 247
RE: help!!!!bad drone sound with new duals
Originally posted by Dutch on 3.8Mustang.com
"Drone is created when you have two identical sound waves overlapping. It dramaticly increases the volume of the sound. You may have learned about it school if you took physics.
GT takeoffs don't drone, because Ford makes them slightly different left-to-right so that they don't make quite the same sound. With aftermarket mufflers, they're the same, and at certain engine speeds you'll get resonance in the exhaust that is really loud and annoying. It made the Flowmasters in my V6 Mustang unbearable. On my '64 Chrysler 300K with Flowmasters, the resonance was so bad at idle that if I had my wife with me, I had to have the windows open or the pressure would cause her ear pain.
Unless you're 17 years old and eager to be the loudest car for a 10-mile radius, skip Flowmasters."
"Drone is created when you have two identical sound waves overlapping. It dramaticly increases the volume of the sound. You may have learned about it school if you took physics.
GT takeoffs don't drone, because Ford makes them slightly different left-to-right so that they don't make quite the same sound. With aftermarket mufflers, they're the same, and at certain engine speeds you'll get resonance in the exhaust that is really loud and annoying. It made the Flowmasters in my V6 Mustang unbearable. On my '64 Chrysler 300K with Flowmasters, the resonance was so bad at idle that if I had my wife with me, I had to have the windows open or the pressure would cause her ear pain.
Unless you're 17 years old and eager to be the loudest car for a 10-mile radius, skip Flowmasters."
02-14-2006, 12:47 AM
#5
6th Gear Member
Join Date: Jul 2005
Posts: 5,172
RE: help!!!!bad drone sound with new duals
ORIGINAL: BlueStang6
Originally posted by Dutch on 3.8Mustang.com
"Drone is created when you have two identical sound waves overlapping. It dramaticly increases the volume of the sound. You may have learned about it school if you took physics.
GT takeoffs don't drone, because Ford makes them slightly different left-to-right so that they don't make quite the same sound. With aftermarket mufflers, they're the same, and at certain engine speeds you'll get resonance in the exhaust that is really loud and annoying. It made the Flowmasters in my V6 Mustang unbearable. On my '64 Chrysler 300K with Flowmasters, the resonance was so bad at idle that if I had my wife with me, I had to have the windows open or the pressure would cause her ear pain.
Unless you're 17 years old and eager to be the loudest car for a 10-mile radius, skip Flowmasters."
Originally posted by Dutch on 3.8Mustang.com
"Drone is created when you have two identical sound waves overlapping. It dramaticly increases the volume of the sound. You may have learned about it school if you took physics.
GT takeoffs don't drone, because Ford makes them slightly different left-to-right so that they don't make quite the same sound. With aftermarket mufflers, they're the same, and at certain engine speeds you'll get resonance in the exhaust that is really loud and annoying. It made the Flowmasters in my V6 Mustang unbearable. On my '64 Chrysler 300K with Flowmasters, the resonance was so bad at idle that if I had my wife with me, I had to have the windows open or the pressure would cause her ear pain.
Unless you're 17 years old and eager to be the loudest car for a 10-mile radius, skip Flowmasters."
I got my handy drill in the garage. LOL
02-14-2006, 02:04 AM
#6
2nd Gear Member
Join Date: May 2005
Location: Piscataway, NJ
Posts: 391
RE: help!!!!bad drone sound with new duals
interesting.. ive noticed i get a lot a lot alot more drone if i turn the O/D switch off... like around 30 - 40 miles WOW engine is loud as hell and the exhaust sounds different....
02-14-2006, 01:50 PM
#7
4th Gear Member
Join Date: Apr 2005
Location:
Posts: 1,716
RE: help!!!!bad drone sound with new duals
ORIGINAL: BlueStang6
GT takeoffs don't drone, because Ford makes them slightly different left-to-right so that they don't make quite the same sound. With aftermarket mufflers, they're the same, and at certain engine speeds you'll get resonance in the exhaust that is really loud and annoying.
GT takeoffs don't drone, because Ford makes them slightly different left-to-right so that they don't make quite the same sound. With aftermarket mufflers, they're the same, and at certain engine speeds you'll get resonance in the exhaust that is really loud and annoying.
02-14-2006, 04:26 PM
#8
2nd Gear Member
Join Date: Jul 2005
Location:
Posts: 310
RE: help!!!!bad drone sound with new duals
ORIGINAL: Tres Wright
Huh, that's interesting indeed. I have the GT take-offs and do not have a drone anywhere in the RPM range. I like them because they have a nice throaty rumble at idle and low speeds, then quiet down at higher speeds and can barely be heard on the highway. But step on it and it lets out a nice roar
ORIGINAL: BlueStang6
GT takeoffs don't drone, because Ford makes them slightly different left-to-right so that they don't make quite the same sound. With aftermarket mufflers, they're the same, and at certain engine speeds you'll get resonance in the exhaust that is really loud and annoying.
GT takeoffs don't drone, because Ford makes them slightly different left-to-right so that they don't make quite the same sound. With aftermarket mufflers, they're the same, and at certain engine speeds you'll get resonance in the exhaust that is really loud and annoying.
02-14-2006, 06:01 PM
#9
2nd Gear Member
Join Date: Jan 2006
Location:
Posts: 253
RE: help!!!!bad drone sound with new duals
what if you drilled a tiny hole in just one of the mufflers? I forgot exactly why people do that, but if you just did it in one would it fix the drone? Mine does it too at around 2k rpm, especially when the od is off.
