did yr's ago made like glass pack's
making mufflers...
Thread Starter
Race Director
Joined: Jul 2004
Posts: 19,793
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From: Belgium/Germany Hot, freewheeling honeybee
Got Hooker 4" side pipes, ceramic coating. The first ones were made of several stainless steel pipes welded together, in the shape of an O filled with o 's. (if that description helps)
Thinking of making a perforated cone...
How long have the 'glasspacks' lasted?
Thinking of making a perforated cone...
How long have the 'glasspacks' lasted?
Last edited by '77BABE; Dec 4, 2004 at 12:40 PM.
Melting Slicks
Joined: Dec 2000
Posts: 2,041
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From: Wichita, KS
Have you looked at these?
I am using one of these in each side with the center hole open. It is too loud for real street driving. Two in each side with the center hole blocked may be a better choice.
I am using one of these in each side with the center hole open. It is too loud for real street driving. Two in each side with the center hole blocked may be a better choice.
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Thread Starter
Race Director
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From: Belgium/Germany Hot, freewheeling honeybee
Originally Posted by BB wowbagger
I made these for my pipes and they work out really well. They deliver a nice rumble at idle and makes a really nice sound at wot 
Thread Starter
Race Director
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From: Belgium/Germany Hot, freewheeling honeybee
Originally Posted by RedBad1979
Summit offers stainless mufflers in 3.5" outer diameter (24" or 30" long) - these could be welded in a 4" sidepipe ...
Page 75 in their catalog, item # sum-630630
Page 75 in their catalog, item # sum-630630
Melting Slicks
Joined: Feb 2002
Posts: 2,298
Likes: 1
From: Sodertalje/Sweden
They are made of 3" perforated tubing and the rods are welded in position. The absorbing material is steelwool.
To hold them in place i drilled a hole in the pipes and welded a nut on to the muffler. Then just bolt it down.
To hold them in place i drilled a hole in the pipes and welded a nut on to the muffler. Then just bolt it down.
Le Mans Master
Joined: Jun 2002
Posts: 8,339
Likes: 24
From: I can walk to MA
How much do you want to spend ... $330 gets you a nice set of spiral turbos :
You can certainly fab something up much cheaper, but I have
heard nothing but great things about these baffles.
You can certainly fab something up much cheaper, but I have
heard nothing but great things about these baffles.
Le Mans Master
Joined: Apr 2000
Posts: 5,202
Likes: 10
From: cincinnati ohio
St. Jude Donor '09
I still like my $20.00 Dynomax Magnum glasspacks...IMO best sounding sidepipe muffler out there....and I've tried a few.(including the exalted spiral baffled) 
Last edited by yellow 72; Dec 5, 2004 at 04:49 PM.
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Originally Posted by NHvette
How much do you want to spend ... $330 gets you a nice set of spiral turbos :
You can certainly fab something up much cheaper, but I have
heard nothing but great things about these baffles.
You can certainly fab something up much cheaper, but I have
heard nothing but great things about these baffles.
Le Mans Master
Joined: Mar 2001
Posts: 6,240
Likes: 1,013
From: Watkinsville, GA and Glen Cove, NY
Comp, I was probably one of the first to dyno test the JCL baffles on my 69 with a 502. The gist of it was that I only lost 6 horsepower from open sidetubes on a 350 rwhp motor. This was with the caps still on the baffles. The amazing thing was I lost 92 horsepower with the Hooker mufflers. I absolutely love the sound of them as well. Now my motor is making over 600 horsepower and I am running the baffles uncapped and cut some. In this configuration on an engine dyno I only lost 12 horsepower. Pretty impressive in my book. They are expensive but I wanted to run sidepipes and make horsepower and I think these are the best way outside of running open sidetubes. Period.
Melting Slicks
Joined: May 2004
Posts: 2,738
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From: Gulf of America
2023 C7 of the Year Finalist - Unmodified
2018 C3 of Year Finalist
After seeing how pathetic the Hooker mufflers were, I fabbed up a set of my own. I used some 2 1/2" Purple Hornie glasspacks, welded them up so they would locate inside the sidepipes correctly. They made great power but were way too loud. I went with the JCL spiral baffles and have been very happy with them.
Drifting
Joined: May 2003
Posts: 1,414
Likes: 2
From: Barrie
I made these prototype mufflers to see if I could make an adjustable side pipe muffler. End result: uncapped they were as loud as open headers, with the baffle on it wasn’t much better. It’s hard to see in the picture but there was a gap around the outside edge of the removable baffle and the 4” side pipe.
Le Mans Master
Joined: Jul 2001
Posts: 9,622
Likes: 16
From: absecon nj
http://www.speedwaymotors.com/xq/asp...qx/product.htm
i made my own set with these,welded 3 sets together.
i made my own set with these,welded 3 sets together.
