Glasspacks???
Race Director
Joined: Mar 2001
Posts: 19,965
Likes: 6,770
From: Bonneville Salt Flats
Re: Glasspacks??? (Ellinaras)
Rediculous? No way! My favorite sounding car of all time was one I owned with a pair of glasspacks, each about 40" long (no H or X-pipe), running a Paxton supercharger and fairly mild cam. I've never been able to duplicate it since.
It was not state of the art nor the best for performance (like it needed more), but did it ever "purrrrrrrr" unlike anything I've ever experienced... I can still hear it... Drat, ya got me started thinking about 'er all over...
If I weren't so fond of the ti's on the C-5 I might have experimented with multi-glasspacks of some sort.
All the best.
It was not state of the art nor the best for performance (like it needed more), but did it ever "purrrrrrrr" unlike anything I've ever experienced... I can still hear it... Drat, ya got me started thinking about 'er all over...
If I weren't so fond of the ti's on the C-5 I might have experimented with multi-glasspacks of some sort.
All the best.
Thread Starter
Intermediate
Joined: Dec 2003
Posts: 30
Likes: 0
From: Corpus Christi Texas
Re: Glasspacks??? (CPT Z06)
Completely open pipes is not a bad idea, (I already have cutouts anyway), but in my older cars I had tried all kinds of expensive mufflers but the glasspacks always sounded special...
It should be interesting to know if anybody out there has already tried them :chevy
It should be interesting to know if anybody out there has already tried them :chevy
CF Senior Moments Member
Joined: Jan 2004
Posts: 1,329
Likes: 1
From: Oklahoma City Oklahoma
Re: Glasspacks??? (Ellinaras)
I have galsspacks on my Valkyrie motorcycle - and I love the sound of them.
Never thought about putting them on the vert. :lurk:
It might indeed provide an awsome sound! :iagree:
Never thought about putting them on the vert. :lurk:
It might indeed provide an awsome sound! :iagree:
Burning Brakes
Joined: Aug 2001
Posts: 820
Likes: 0
From: Newport News VA
Re: Glasspacks??? (Dr. Dirt)
How are you going to loose performance??? A glasspack is just a straight-through exaust pipe wrapped in fiberglass. Lower restriction will cost you a little bit of low end torque, but you'll pick up more HP up top.
I have a setup I made with two Dynomax 14" "race only" glasspacks welded side by side and fit in the exaust tunnel right after the cats. I welded the old flanges to them and finished it off with a SLP Loudmouth system.
It was loud as hell obviously, but it smoothed the sound out and got rid of that "motorboat" sound if you've ever heard the LM system before. I would have kept them but I replaced the setup with the SLP Xpipe/resonator because I thought it was rattleing but it turns out it was something else. The sound was much louder than the SLP Xpipe/LM combo and I might put them back on one day :)
I have a setup I made with two Dynomax 14" "race only" glasspacks welded side by side and fit in the exaust tunnel right after the cats. I welded the old flanges to them and finished it off with a SLP Loudmouth system.
It was loud as hell obviously, but it smoothed the sound out and got rid of that "motorboat" sound if you've ever heard the LM system before. I would have kept them but I replaced the setup with the SLP Xpipe/resonator because I thought it was rattleing but it turns out it was something else. The sound was much louder than the SLP Xpipe/LM combo and I might put them back on one day :)
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Safety Car
Joined: Oct 2001
Posts: 3,504
Likes: 25
From: Insert Wittty Comment here
Re: Glasspacks??? (Fast one)
Most glasspacks (or Smittys if you are from the old school) actually create some turbulence, and flow less than some of the more modern mufflers. If you want a semi-glass pack muffler you can get a Walker Stainless Steel ultraflow. We use them on Grand Nationals they are similar to a glasspack in design, but they use Stainless Steel instead of fiberglass. The problem would be finding a way to route them. Most glass packs are too long to fit within the confines of a C5. If you want loud, go B&B. Basically an open pipe with a small resonator sitting off to one side.
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Re: Glasspacks??? (J-Rod)
Most glasspacks (or Smittys if you are from the old school) actually create some turbulence, and flow less than some of the more modern mufflers. If you want a semi-glass pack muffler you can get a Walker Stainless Steel ultraflow. We use them on Grand Nationals they are similar to a glasspack in design, but they use Stainless Steel instead of fiberglass. The problem would be finding a way to route them. Most glass packs are too long to fit within the confines of a C5. If you want loud, go B&B. Basically an open pipe with a small resonator sitting off to one side.
Ed
Drifting
Joined: Feb 1999
Posts: 1,926
Likes: 0
From: I hate you and I dont even know you
Re: Glasspacks??? (Ellinaras)
Glasspacks were on my '75 when I bought it. Sounded good so I never bothered replacing them. :D
If you're looking for a cheap, free flowing exhaust, get some straight pipes made at a local shop.
If you're looking for a cheap, free flowing exhaust, get some straight pipes made at a local shop.
Supporting Vendor
Joined: Mar 2002
Posts: 2,073
Likes: 0
From: Loveland CO
Re: Glasspacks??? (Avanti)
The exhaust that is currently on my car is basically glasspacks. I run straight exhaust on the car until the tips. The tips are glasspacks. I think the car sounds awesome with those tips and my cam. Kaley
Advanced
Joined: Mar 2001
Posts: 98
Likes: 0
From: Findlay Ohio
Re: Glasspacks??? (Ellinaras)
I have glasspacks on my 99 FRC
Strait pipe is way to loud the glasspacks mello out the tone and remove the gurgling. I used little Dynomax 6" glasspacks from Jegs. I cut off my mufflers and had the packs welded on with tips cut and turned angled with the side of the car. not out the back. cant see anything unless you look under the car. My friend has a 1997 Viper GTS and he says he wishes his car sounded as good as mine it sounds like a real Chevy now.. But as always unless you hear it for yourself you wont be happy. I went to lots of Vette shows and no after market sounds as good as Glasspacks on mine. Remember though they will rust if you dont keep a good coat of high temp paint on them. Good luck!
Strait pipe is way to loud the glasspacks mello out the tone and remove the gurgling. I used little Dynomax 6" glasspacks from Jegs. I cut off my mufflers and had the packs welded on with tips cut and turned angled with the side of the car. not out the back. cant see anything unless you look under the car. My friend has a 1997 Viper GTS and he says he wishes his car sounded as good as mine it sounds like a real Chevy now.. But as always unless you hear it for yourself you wont be happy. I went to lots of Vette shows and no after market sounds as good as Glasspacks on mine. Remember though they will rust if you dont keep a good coat of high temp paint on them. Good luck!
Tech Contributor
Joined: Oct 1999
Posts: 41,058
Likes: 9,820
From: Charlotte, NC (formerly Endicott, NY)
Re: Glasspacks??? (Ellinaras)
I ran Supertrapps on my 97. They have an inner core surrounded by glass packing. You adjust the sound by changing the number of discs at the end. On the street I ran with 12 discs and on the track I pulled them all off. Even with the discs in I had a tremendous drone from 1600 rpm to 2000 rpm that would kill your hearing after a while. The whole interior would vibrate from the sound.
Bill
Bill
Instructor
Joined: Jun 2003
Posts: 168
Likes: 0
From: Parker Co
Re: Glasspacks??? (SR71)
I have owned several sportbikes in the past and have put aftermarket exhaust on them. Every exhaust i bought was the race version and was identical to a glasspack internally. I have contemplated the idea of adding them to my car since the slp lm is so damn loud! :cuss
