ExhaustPost your questions and suggestions about stock or aftermarket exhaust setups. Third Gen exhaust sound files and videos!
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im going to be putting a dual exhaust on my 82 camaro with a 350(long tubes with glass packs and dump off somewhere before the rear axle). i was planning on just putting hedman glass packs on it. my question is what do you think about glass packs, is my car going to be ridiculously loud, is it going to have a deep sounding idle? ive never herd glass packs on a v8 only on the rice burners lol so i dont know what to expect
thanks,
john
glass packs dont even flow that well compared to todays muffler its old technology its gonna sound like an old pickup, and yes its gonna be ****in loud if ur runnin long tubes and dumpin before the axel. yo look into "power sticks" theyre straight thru chambered mufflers and they sound great
I think glasspacks are one of those sounds that, well a V8 with dual glasspacks is like one of the defining sounds of our automotive heratige.
Unfortunately, many others believe that they are one of those things that should have been left in the 70's and 80's along with denim coats, mul-let haircuts, and billy beer.
__________________ -Adam
1990 Firebird Formula
Bone Stock 305TBI, T5 tranny, 62k Origional
UMI subframe Connectors
Personally glass packs sound decent on an old farm truck but I can't stand loud exhaust that pops. The best sounding exhaust in my opinion is a dual exhaust setup with X pipe and flowmasters or spintech.
well my exhaust is loud but it dont pop unless i make it. And it sounds pretty good but im not done yet still gotta run a pipe out the side, its just a temp fix till i either get one made or buy a whole system
i'd say go for it but get Thrush glasspacks- i have one on my car and it sounds great. Thrush glasspacks have smooth openings on the inside casing as opposed to other brands which have little notches sticking up to "catch" the exhaust causing turbulence and a not-so-good sound. my car has a glasspack and i have an LG4 and it def. does NOT sound like a truck or some red neck POS.
LG4 305ci 4bbl motor, 2.5" Cherry Bomb Extreme muffler- side exit exhaust, Cragar 15x7 Black D Window wheels (4" backspacing), Cooper Cobra Radial GT tires (P235/60R15), 36mm hollow front sway bar with wonder bar, 24mm rear sway bar, Energy Suspension endlinks and Guldstrand bushings, Edelbrock Elite 4222 air cleaner with K&N filter, FF Dynamics 16" Cyclone electric fan, Flex-a-lite Variable Speed Fan Controller, custom fixed headlight conversion with 5000K HIDs and Silverstar Ultra H7 bulbs, Pilot PL-362W driving lights with Hella 100W H3 bulbs, Deka Intimidator 9A78DT AGM battery
ok guys thanks for all the info youve gave me some different options well when i finally figure out what im gonna do ill let you all know how it turned out...and punkdude if i do decide to throw some glasspacks on it id hope that it would sound your car it sounds pretty good man
thanks,
john
glass packs dont even flow that well compared to todays muffler its old technology its gonna sound like an old pickup, and yes its gonna be ****in loud if ur runnin long tubes and dumpin before the axel. yo look into "power sticks" theyre straight thru chambered mufflers and they sound great
I disagree with this statement. If you look at most forms of motorsports that require mufflers, from Drag Racing to Motocross to road racing, all of them use some form of fiber packing around a perforated core. The "Power sticks' are just glass packs without the fiber packing, and used closed chambers outside the core to reflect the sound waves, and were originally availabe on Camaros in the '60's, so they are anything but "new technology". The problem with any "chambered" muffler is that they will only muffle well at a particular wave frequency, so they are quiet at some RPMs and very loud at others, and most I have seen on the dyno did not produce good power, just noise.
The biggest issue with "glass packs" as sold by a neighborhood muffler shop is that they use low quality packing that burns out, and not much of it. You'll find that a longer glass pack actually sounds good (somewhere around 18-20 inches long) and flows well until the glass burns out, then it just becomes a turbulence factory. They are also often limited by the internal diameter. Look up DynoMax Race Bullet # 24219, 3 inches straight through, 18 inches long. They're about 50 bucks from Summit, and gave us the best results on the dyno and at the strip. Not too bad at idle and low speed, and sounds like a NASCAR stocker at full honk.
liteumup387 bro check it out i have basicly your setup except i have flowtechs headers and short glasspacs sounds pretty damn good two me better than the 18" i like it cause it sounds alot like the old camars and birds of the 60s 70s and goes swell with my crager ss,S, i have duels down mine and short glasspacs have great ground clearance also if your going true duels. i have seen glasspacs come straight off your headers and that sh*t is really loud, however i dont think it would work on our thirdgens.
Yea lol when im wot and let off it pops and cracks like crazy but i love that about it. i guess i can see where it get old two some people that drive there third gens everyday but i olny drive my Bad Bit*h on the weekends
Glass packs are loud, but not good loud. They will make a V8 sound like a combination between a gang of harleys, and a construction dump truck. I have run them on several V8 dual exhaust setups and a few single exhaust V6 stuff so I am well versed.
TA you are not alone. I am 24 and I have had my share of open header $500 POS cars that went slow and made a ton of noise doing it. I am over that phase and now seek to make maximum HP with minimal noise. Most of the loud cars on the street are really slow lame-o V8s (and 4 bangers for that matter) that some kid just wants to make a racket with anyway.
If you want to hear glass pack sound clips, here is my brother's 66 Dart, which was a 318 w/ Magnum heads (1.96/1.6 valves), 0.470" gross lift cam, stock manifolds, and dual 24" long case cherry bomb brand glass packs
There are two video clips so you can hear it. It doesn't sound "that" bad but it is extremely flappy. Going down the street it would go blapblapblapblap, more like a motorcycle gang than a high performance car.
lol bro i see where ya comin from ....but my Camaro with a 305 and flowtech headers with 2 12 inch stainless steel glasspacks sound 3 times better than that. Tell your Brother he should of went with a chevy
Those are very long glass packs, but what diameter core are they? Are they true duals? Does it have an X-pipe? Inquiring minds want to know, so they can AVOID making anything sound like that.
Sorry, but Cherry Bombs are just a marketing name somebody slapped onto garden variety glass packs about 40 years ago to make 'em "cool".
Travis, you say yours are stainless, who makes them? How long are they? Any chance of a sound clip? C'mon, you "young bucks" are all computer savvy, right??? If my nephew can download music onto my cell phone, you can certainly download a sound clip fer yer buddies on this board!
mine are 12 inches long i have an H pipe, However i am not satisfied until i get the catback with some hookers 2055 i have been longing for. and no i have no sound clips sorry man just take my word for it.
Those are very long glass packs, but what diameter core are they? Are they true duals? Does it have an X-pipe? Inquiring minds want to know, so they can AVOID making anything sound like that.
Dual 2.25, 2.25" core, no cross over. Most glass packs are going to sound like this no matter what. With a small case (compared to an oval muffler) and packing, it's going to flap.
That 318 would have destroyed most 305 cars. That car weighed about 3,000 lbs. I have built more than just chevy stuff and it ran very hard. We don't have the car anymore. It was a total rust bucket. I have run glass packs on a Pontiac 400 w/ headers and it sounded even worse than that Dart did in the vids. Flapalapalapalapa.
all in all boys its what you like, it doesnt matter what some rich Fu*k on here thinks.. its what you like its what you think/believe your camaro should sound like.if glasspacks are the deal then let um Flapalapalapalapa as long as you like it....and hell this is off the subject but.. to the ladies, i aways tell them i have like a 454 bigblock over 500 hp and everytime they believe me! and think my duel glasspacks sound amazing so i would much rather impress the ladies than any man on here, i mean come on lol
Yes, sound is subjective to a certain extent, but most of us agree that the lowrider flappa flappa is not high performance sounding at all. When it comes to impressing the ladies, most of them cannot tell a Camaro from a Mustang from an dump truck, they just act impressed because they think it's important to you. All they care is if it runs well, looks decent, and doesn't stink.
Glasspacks sound best on a smaller displacement high compression carb'd V8...basically, if you have a ford 289 or a chevy 327 with a four barrel, then glasspacks are good, on more modern fuel injected engines (especially with the long induction tubes on TPI cars) then you're better off going with a chambered design.
naw i cant really agree with that....i think flowmaster is the better way out for any setup, however when you cant afford flowmaster spintech or w/e glass packs can hit the G spot, for now anyway
thanks for all the info guys... after looking under my car again i realized i better get the front coil springs in because its sagging pretty bad so im gonna do that then order the exhaust parts when i do it ill put up a new post and let you all know what i did how it turnd out
thanks again,
john
Glass packs with dumps under the car are a nitemare. The interior turns into a vibration chamber. You need pipes that go out the back. They help the car sound so much better. Don't believe me? Disconnect the exhaust at the back of the cat and go for a ride. The glass packs came out in the late 60s when everybody wanted their car to sound like a musclecar. But with a low compression V8 and mild cam they just sounded like you had a blown muffler.
Ain't nuthin' like a high compression, big cam, carbed V8!
i've got a set of hooker shorty's along with their y pipe. i was thinking of sticking a single super 40 or something similar under the passebger seat and dumping soon there after, is that going to sound signifigantly different than the 80 series crossflow muffler i've got in the stock location?
You're also going to wind up with carbon monoxide in the passenger's compartment because the weather seals are never perfect, and you will be putting exhaust right under the pass compartment. I've dumped under the car once before. Never again.
You're also going to wind up with carbon monoxide in the passenger's compartment because the weather seals are never perfect, and you will be putting exhaust right under the pass compartment. I've dumped under the car once before. Never again.
i was thinking of running a short pipe and pointing it sideways in front of the weel under the rocker panel.
That is really what it boils down to. A 305 carb/tpi/tbi with a stock 0.350" roller cam is going to sound like a dump truck no matter what muffler you put on it. The cam is barely opening the valves, so that's the sound you get. I have a 3" exhaust and a Hooker aero chamber on a 305 TPI long block and it sounds like an oldsmobile with a stock exhaust. I have a roller cammed 327 w/ aftermarket heads and headers, and it sounds wild no matter what mufflers are on it.
That is really what it boils down to. A 305 carb/tpi/tbi with a stock 0.350" roller cam is going to sound like a dump truck no matter what muffler you put on it. The cam is barely opening the valves, so that's the sound you get. I have a 3" exhaust and a Hooker aero chamber on a 305 TPI long block and it sounds like an oldsmobile with a stock exhaust. I have a roller cammed 327 w/ aftermarket heads and headers, and it sounds wild no matter what mufflers are on it.
The more I think about it, the more I agree with 327_TPI_77_Maro's statement. Mufflers are not magic, they only 'shape" the sound that the engine puts out.
yea i have two agree with most.. i just got my hookers 2055s and im in love, i dont think i will be putting the cheep glass packs back on my car hell if it was up two me i would run open headers.... but its not... i taken my side pipes off and i realized our cars look better with the exhaust run out the back not out the fu(king sides! im getting a catback asap and never will i niG*er rigg up some crap again, but ya know you guys are saying glasspacks sounds like a dump truck? i wouldnt go that far with nonsence.
ive got dual glasspacks on my 3/4 ton silverado with a 350. they sounded ok until the glass burnt out now it sounds like a bag of popcorn in a microwave. it still sounds good at idle and normal (speed limit) driving, but when i get it to WOT it screams on acceleration and it pops on deceleration. IMO just put some thrush welded chamber mufflers on it. i have them on my camaro and they soud good no matte rwhat im doin. there just flowmaster knock-offs.
ack in December, I replaced the original exhaust on my boss's 89 TBI 305 Formula.
I installed the Walker Dynomax Super-Turbo Cat Back. The system went on in 10 minutes and the car sounds great. Sorta deep sounding at idle and it will talk to you but it is not cop-baiting loud.
I got it from Summit Racing- Check it out : WLK-17493
Thrush Magnum mufflers are made by Dynomax, very cheap, flow well, and have a deep but mellow sound.
Only one tiny warning, the 2 1/4 inlet/outlet version (stock exhaust piping on most of our cars) has an inner tube of 2 inches, while all other Thrush Magnum mufflers have inner tube of same size as inlet/outlet.
