Glasspack
 

So im taking some autobody/ welding classes now and have decided to take on a new project. I want to take a swing at a center exit exhaust.
I came across glasspacks and was pretty interested, what do you guys think?


http://www.ebay.com/itm/Dynomax-2421...hUotMF&vxp=mtr

They are cheap and and will degrade rather quick, then at that point it will just be loud and create drone. these are also not a substitute for a muffler

I second that and personally hate glasspacks as they do not sound good at all

Congrats on learning to weld! It's a great skill to have.

Buy something that is meant for our cars. My .02$ glass packs are for lowriders. I had em on my 1980 buick regal. It was primer grey. Lol

True, after doing more read watch I am now leaning away from the glass pack. Still aiming for a center exit exhaust haha

Well, ort895, they worked back in the 50s, but I don't know about todays cars .......... :D


humfrz

I think they sound glorious on a 1960-70 big block

It doesn't matter who makes it, Cherry bomb, Dynomax, Magnaflow, the glass packs are designed to burn out (see their marketing for break-in) over time and will get really loud. They were designed in the 50's for guys who wanted to run straight pipes when laws that required the use of a muffler were coming into effect. This was well before decibel laws.
If you want a decent bullet style resonator to use as a muffler, you'll end up spending just as much as if you bought a cheap Vibrant, Magnaflow, or Dynomax muffler.
I have used the Dynomax bullet presilencer on multiple rotary track applications, but I recommend paying up and getting a round Magnaflow if you want to use a round muffler.
These are the closest to a glass pack, but hte glass shouldn't blowout in most applications: http://www.dynomax.com/sounds-of-dyn...bullet-muffler
You're better off buying one of these: https://www.magnaflow.com/automotive...race-mufflers/
Look through the plethora of exhaust threads on this forum. These cars run very aggressive cam and ignition timing and have 12.5:1 compression, all of which create a very LOUD exhaust. A lot of people on this forum spend tons of money on exhausts, just to start a for trade thread a month after their neighbors call the police on them every morning.

I remember having a twin glasspack setup on my carb'd 81' 280ZX. Spoiler alert: It was loud.

Actually the higher quality glass-packs -like the Thrush piece- function great when used as a resonator. Used one of them on a custom system that was built for my old 323GTX when the resonator that was in the Greddy front pipe rotted out. Improved the sound, too.

You know - I may actually have spares of both the resonator and muffler from that setup. Think I may try and build the same exhaust for the FRS-turbo and see how it sounds!

There's not a ton of space (lengthwise) between the diff and bumper, I don't think you'd fit any sort of glasspack/resonator lengthwise in there. You'll need a muffler that sits sideways behind the diff or a piece of straight pipe.

Glasspack...(fade into high school flash back)

If you are just looking for a center exit exhaust.....http://www.ft86speedfactory.com/ft-8...l#.Wxo6lNVKjbg

Yep, fill them up with kerosene, burn em out to settle/melt the fiberglass, install them backwards …….. :w00t:

Yes, Officer …… my car has mufflers …….. see …….. :D


humfrz