Why doesn't the C6 sound like a Mustang.
11-08-2011, 10:46 PM
#81
Pro
11-08-2011, 11:18 PM
#82
Instructor
The other day a Mustang pulled up next to me and I was audibly enthralled with its exhaust. It wasn't the volume. but rather a richness in it's sound that exuded power. The thought came to me, that here I was sitting in a Vette with more HP than the car next to me, yet one couldn't tell that from the sound of the C6's exhaust. Mind you I have the Z06 exhaust with the bi-mode open most of the time. And yes I know the NPP is a little louder, but that reinforces my point which is it is not the level of sound volume, but rather the deeper rumble of the Stang which gives a more guttural resonance. This strikes the ears as being the biggest, most powerful engine. Perhaps you could explain it to me. Why can't the Vette sound as powerful as the Mustang? Is it due to our more restrictive cats? 
11-08-2011, 11:19 PM
#83
Again .. It all has to do with the firing order ... and the LSx don't have the same firing order that the Mustang or previous small and big block Chevys have.
So ... you can't fix it, and the LSx Corvette will never sound like that Mustang, no matter what pipes you put on it.
As they say ... that's just the way it is
So ... you can't fix it, and the LSx Corvette will never sound like that Mustang, no matter what pipes you put on it.
As they say ... that's just the way it is
I didn't read the entire thread so please forgive if someone already posted this:
In ADDITION to the firing order...I read that it is the length of the exhaust port. The distance from the exhaust valve to the end of the head is MOST of what makes that signature Mustang sound.
While I'm certainly no Mustang fan, I can agree that the Engineers at Ford got the sound right on the Mustang, and most honest people here will admit it too.
In ADDITION to the firing order...I read that it is the length of the exhaust port. The distance from the exhaust valve to the end of the head is MOST of what makes that signature Mustang sound.
While I'm certainly no Mustang fan, I can agree that the Engineers at Ford got the sound right on the Mustang, and most honest people here will admit it too.
It's the firing order. The choice of firing order causes the propagating sound waves of one cylinder to be partially nullified by the reflected sound waves of another cylinder. The firing order, I believe, was changed for the LS-1, but it could have been an earlier engine. I don't recall, but it's documented and can be Googled. The older 350's and 327's from the late 60's and 70's have the same firing order as the current Mustangs, I believe.
Why did the General change the firing order? I can only guess and it probably has to do with an increase in performance, even if only incremental. A little here, a little there, and you end up with some notable horsepower
Cheers!
Why did the General change the firing order? I can only guess and it probably has to do with an increase in performance, even if only incremental. A little here, a little there, and you end up with some notable horsepower
Cheers!
GM cylinder numbering and firing order
1-8-7-2-6-5-4-3
Ford cylinder numbering and firing order (starting cylinder 5, which is GM's 1)
5-4-8-1-3-7-2-6
(1-3-7-2-6-5-4-8)
LSxs and Ford Modular V8s fire in the exact same pattern.
Last edited by 4GS7; 11-08-2011 at 11:22 PM.
11-09-2011, 12:03 AM
#84
Pro
Member Since: Sep 2006
Location: Anaheim California
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Like the above poster pointed out it has nothing to do with the firing order. It does have to do with the location of the mufflers proximity to the heads, as well as the size and shape of the pipes. The farther away the mufflers are from the head, the worse (less throaty) sound is produced. The layout of the Vette gives the car superior handling and weight distibution. It also leaves nowhere to put the mufflers except the very end of the car. Although I agree, the Mustang sounds better because the layout of the car allows for that. But it doesn't allow for good traction or weight distribution either. Given the two choices, the Vette is a better performer. The Mustang just sounds better. If you want a loud Vette, just install dump outs. Then you'll rattle all the teeth out of your mouth.
11-09-2011, 07:55 AM
#88
The Mustang has a great exhaust note...period. And the vast majority of us wish our vettes sounded that good. Most of us change the exhaust because we don't like the way our stock vettes sound. Just look at CORSA. They offer three different sounds for a reason and none of it has to do with performance. I had a 1981 Z28 and it had an awesome low tone rumble to it. The Mustang has the best stock exhaust out there. But I love my vette.
11-09-2011, 07:56 AM
#89
11-09-2011, 07:57 AM
#90
Like the above poster pointed out it has nothing to do with the firing order. It does have to do with the location of the mufflers proximity to the heads, as well as the size and shape of the pipes. The farther away the mufflers are from the head, the worse (less throaty) sound is produced. The layout of the Vette gives the car superior handling and weight distibution. It also leaves nowhere to put the mufflers except the very end of the car. Although I agree, the Mustang sounds better because the layout of the car allows for that. But it doesn't allow for good traction or weight distribution either. Given the two choices, the Vette is a better performer. The Mustang just sounds better. If you want a loud Vette, just install dump outs. Then you'll rattle all the teeth out of your mouth.
11-09-2011, 08:08 AM
#91
[QUOTE=pinballfanatic;1579163325]07 vert manual here with B&B bullets...... Don't understand what you are talking about!!
[/QUOT
you mean you can't HEAR what hes saying LOL had those on a o8 and had to take them off
[/QUOTyou mean you can't HEAR what hes saying LOL had those on a o8 and had to take them off
11-09-2011, 08:09 AM
#92
11-09-2011, 08:27 AM
#93
Racer
Like the above poster pointed out it has nothing to do with the firing order. It does have to do with the location of the mufflers proximity to the heads, as well as the size and shape of the pipes. The farther away the mufflers are from the head, the worse (less throaty) sound is produced. The layout of the Vette gives the car superior handling and weight distibution. It also leaves nowhere to put the mufflers except the very end of the car. Although I agree, the Mustang sounds better because the layout of the car allows for that. But it doesn't allow for good traction or weight distribution either. Given the two choices, the Vette is a better performer. The Mustang just sounds better. If you want a loud Vette, just install dump outs. Then you'll rattle all the teeth out of your mouth.
11-09-2011, 08:33 AM
#94
Team Owner
The bottom line here is if the CORVETTE sounded right nobody would be spending stupid money on overpriced exhaust systems to make the car sound better!NPP isn't even close to what this car should sound like but GM charges 1200 for the same exhaust as base with a couple of baffles,a wire and a fuse and people eat t up.It does indeed sound like a bad truck muffler.
11-09-2011, 10:15 AM
#96
Melting Slicks
And, believe it or not, it's possible to have both great performance & a great sounding exhaust at the same time.
Many of us want both, not just one or the other.
11-09-2011, 12:43 PM
#99
Safety Car
The point exactly. I have all the performance I want in my Vette, I just want it to sound like I have it. Loud isn't the same an aggressive low growl.Wow, very prophetic. That must be the answer to many of your Vette's shortcomings because as good as they are, they do have some.
Last edited by j_digi454; 11-09-2011 at 12:45 PM.
11-09-2011, 12:55 PM
#100
Go Canes!
The Mustang has a great exhaust note...period. And the vast majority of us wish our vettes sounded that good. Most of us change the exhaust because we don't like the way our stock vettes sound. Just look at CORSA. They offer three different sounds for a reason and none of it has to do with performance. I had a 1981 Z28 and it had an awesome low tone rumble to it. The Mustang has the best stock exhaust out there. But I love my vette.