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Old Apr 15, 2006 | 02:06 PM
  #21  
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Originally Posted by 1bdasvt
shopdog,just wondering if you have an aftermarket exhaust!
No. I went through the loud muffler phase when I was a teenager, but I quickly decided I didn't need yet another reason for the cops to stop me. Then I studied gas dynamics in college and learned that loud mufflers don't necessarily equal more power either.

Turns out that flow and lots of noise are very often mutually contradictory objectives. In other words, well designed quiet mufflers often flow better than loud straight through mufflers because they remove the turbulence (noise) from the flow. Other factors equal, gas flow is maximized when turbulence (noise) is minimized.

Of course other factors aren't always equal. It is possible to make a quiet muffler with poor flow characteristics. Chevy didn't make that mistake with the C6, though. Tuned open pipes can also make use of the natural turbulence of the engine exhaust pulses to scavenge the gases. This is why headers work. But tuning past the exhaust collector has little effect on power in a street car, ie you can't run a tuned stinger on a street car without attracting the immediate attention of the cops.

On my hotrods, I used to run the biggest Caddy mufflers I could find. That made more power than running glasspacks or "turbo" mufflers, and attracted a lot less attention from the cops than straight pipes. I've always been more interested in actual "go fast" rather than the poser "sounds fast" anyway.
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Old Apr 15, 2006 | 02:44 PM
  #22  
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The 442 had Caddy mufflers
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Old Apr 15, 2006 | 05:18 PM
  #23  
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Originally Posted by jazzlove
seems restrictive...
seems? Thats why I went the B&Bs.
High performance car with high restriction exhaust? Its not the only thing I don't understand about the C6 build. All the 'wrongs' I can fix with a little bit of dough.
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Old Apr 15, 2006 | 07:05 PM
  #24  
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Originally Posted by MAJ Z06
Yes, please resize your pics!!!!!
Ahh..much better.
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Old Apr 15, 2006 | 07:09 PM
  #25  
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Did the same thing to the GHL install thread pictures too.
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Old Apr 26, 2006 | 12:55 AM
  #26  
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Originally Posted by clevitekid
If the GHL is patented then by Federal Law and the U.S. Constitution they MUST disclose the structure in the patent. If someone will post the patent number here, we can get if from the government and at least have drawings of what they have inside.
Mr Google is your friend:

http://patft1.uspto.gov/netacgi/nph-...&OS=ghl&RS=ghl
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Old Apr 26, 2006 | 01:00 AM
  #27  
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[QUOTE=xs650]Mr Google is your friend:

Very good ! I neeeded a good chuckle Now all we need is a Mr Google stuffed animal.
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Old Apr 26, 2006 | 01:02 AM
  #28  
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Reading the patent ................... or, "Why I never finished law school."
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Old Apr 26, 2006 | 06:56 AM
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Shopdog = best poster ever ALWAYS getting good scoop from him.. thanks
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Old Apr 26, 2006 | 07:15 AM
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Originally Posted by topcarbon
seems? Thats why I went the B&Bs.
High performance car with high restriction exhaust? Its not the only thing I don't understand about the C6 build. All the 'wrongs' I can fix with a little bit of dough.
You should be doing this You apparently didn't really read Shopdog's post on how restrictive it isn't.
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Old Apr 26, 2006 | 08:54 AM
  #31  
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Originally Posted by shopdog
No. I went through the loud muffler phase when I was a teenager, but I quickly decided I didn't need yet another reason for the cops to stop me. Then I studied gas dynamics in college and learned that loud mufflers don't necessarily equal more power either.

Turns out that flow and lots of noise are very often mutually contradictory objectives. In other words, well designed quiet mufflers often flow better than loud straight through mufflers because they remove the turbulence (noise) from the flow. Other factors equal, gas flow is maximized when turbulence (noise) is minimized.

Of course other factors aren't always equal. It is possible to make a quiet muffler with poor flow characteristics. Chevy didn't make that mistake with the C6, though. Tuned open pipes can also make use of the natural turbulence of the engine exhaust pulses to scavenge the gases. This is why headers work. But tuning past the exhaust collector has little effect on power in a street car, ie you can't run a tuned stinger on a street car without attracting the immediate attention of the cops.

On my hotrods, I used to run the biggest Caddy mufflers I could find. That made more power than running glasspacks or "turbo" mufflers, and attracted a lot less attention from the cops than straight pipes. I've always been more interested in actual "go fast" rather than the poser "sounds fast" anyway.

So stock exhaust with headers would be the least restrictive in your opinion?...
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Old Apr 26, 2006 | 09:34 AM
  #32  
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[QUOTE=corvette pilot]easiest way is to get the microsoft power toy 'image resizer' It will allow you to right click on any picture to resize.[/QUOTE

Inside of mufflers are just fascinating, but thanks for the tip. Just dowloaded the "image resizer".
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Old Apr 26, 2006 | 10:45 AM
  #33  
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another subject for the C6 parts folder!! Got to save these pics!!

BC
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Old Apr 26, 2006 | 12:40 PM
  #34  
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Originally Posted by shopdog
On my hotrods, I used to run the biggest Caddy mufflers I could find. That made more power than running glasspacks or "turbo" mufflers, and attracted a lot less attention from the cops than straight pipes. I've always been more interested in actual "go fast" rather than the poser "sounds fast" anyway.
My solution was a Chrysler Imperial muffler. Hot Rod Mag ran a good article on mufflers with backpressure numbers and dyno reults back in the olden daze. The big Chrysler muffler beat all the go-fast aftermarket mufflers for power. I don't remember if the also tested the Cad muffler but would expect similar results for similar reasons.

Last edited by xs650; Apr 26, 2006 at 01:01 PM.
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Old Apr 26, 2006 | 11:16 PM
  #35  
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Default How hard would it be ?

xs650, that's what we ought to do. Weld a Chrysler Imperial muffler to each side of the Vette.
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Old Apr 26, 2006 | 11:19 PM
  #36  
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Originally Posted by 4 MY EGO
xs650, that's what we ought to do. Weld a Chrysler Imperial muffler to each side of the Vette.
Another use for JB Weld
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Old Apr 26, 2006 | 11:35 PM
  #37  
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Originally Posted by shopdog
.......Best flow is achieved when the gas flows undisturbed, smoothly, quietly. .......
So you were the one who farted on the elevator. Listen to him grasshopper, for the man seems to know of what he speaks.

Originally Posted by shopdog
I studied gas dynamics in college.
We lit farts in my frat too.

Originally Posted by shopdog
Turns out that flow and lots of noise are very often mutually contradictory objectives.. Other factors equal, gas flow is maximized when turbulence (noise) is minimized.
I hear ya. ...........or do I?

Last edited by '06 Quicksilver Z06; Apr 26, 2006 at 11:53 PM.
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Old Apr 26, 2006 | 11:42 PM
  #38  
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Originally Posted by DSOM Z51
I knew it. That was you who farted on that elevator the other day.
Well I'll be Beans ? And here we all thought shopdog was a meat and potatos kind of guy.
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Old Apr 26, 2006 | 11:45 PM
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DSOM Z51, I think you really lit the fuse ................. Speaking of which, there was a guy in our house that did just that. He set more than his fart on fire.
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Old Apr 26, 2006 | 11:55 PM
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Originally Posted by 4 MY EGO
DSOM Z51, I think you really lit the fuse ................. Speaking of which, there was a guy in our house that did just that. He set more than his fart on fire.
Thanks. Been a little too straight laced around here lately. Someone needed to break the ice..........or is that cut the cheese.
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