Blasphmey? A quiet muffler?

already been mentioned, but the Hemi mufflers are great and what used to be the serious stuff was a pair of Corvair Turbo mufflers....both choices offer a subtle hint of what's going on under the hood, but still allow you to either carry on a conversation with another occupant or to hear your favorite be-bops on the sound system of your choice.

I have a set of Corvair Turbo ovals on my 27 lowboy/289sbf and it's just swell

dj

 

I've got a 74' XJ12C, FI Jag coupe upon which I'm replacing the catastrophic converters with a pair of electric cutouts on as we speak. It's a cool road machine but @ 11 mpg (premium only) I sometimes want want to hear what I'm paying for......all 12 cylinders!

 

I vote for Smithy's with dumps !
You get that nice mellow tone but when you need some more , just open the dumps ! That is the set up I am going t be putting on my 55 Ford !
That way it keeps all parties happy !

 

Anybody run four mufflers on a early falcon or comet with a spirited SBF under the hood?

 

I am not sure if you can still find them but we used to use Cadillac reverse flow mufflers. They had a lot rumble and low restriction. Perfect to keep the excessive noise tickets down to a minimum.

I am not sure what can be purchased today. A small turbo muffler will give you a little sound without being too obnoxious.

 

Went through this muff thing for a year, wanted decent quiet, just cruise & hear the stereo. On a stock 307 elco, i went with 2" walker quiet flow-no stainless, budget friendly. Tailpipes all the way out back with muff in front of axle. Has little rumble at idle & real low speed, almost dead quiet around 40-50 and up.
On my 55 chev. w/ 350, mild cam, went with walker sound fx-again no stainless. 2.5" pipe w/ muff ahead of axle and out the rear like the elco. This thing is dead quiet, but has a neat sound at idle. Both are not performance muffs, but i haven't noticed any difference in either.
BTW-had 31" glass packs on the 55 and meco turbo's on the elco. Damm glad they're both gone.
Good luck.

 

On the SBF in my '55 F100; when I got it it had two common 2 1/2" turbo mufflers and resonated in the cab big time so I added two more that I had laying around and turned the pipes down at the rear axle. Sounded good outside and no more cab rumble.
Lately I've been using the SoundFx mufflers. They come in several configurations, sound good and are inexpensive. Not sure how well they flow. Both of my cars have 2 1/2" in and 2 1/4" out systems with the mufflers as far back as I could get them. I also like the Hooker Aero-chamber mufflers, they cost more but flow well and sound good.

 

In the early 80's I had a 72 MKIV with the lowered-compression 460, dead stock. Went into my buddy's muffler shop and told him I wanted to try the Street Hemi mufflers, so we looked them up and ordered a set of correct ones- probably Walker but IDK. They were far from quiet but not obnoxious, and really sounded good. Been through a lot of tractor mufflers, gramps owned an International dealership, and I always have a few antique tractors sitting around. The mufflers at Tractor Supply are Stanley brand, decent quality for the price. They usually stock the ones for the larger old Farmalls like the M series that are 2-1/2" with a long 6" can, a little smaller for the H etc, and of course the little 8N Fords and Deeres. Some have a straight-thru perforated core, and some have a central baffle to force the exhaust thru the core. There are some without the baffle for the Ford 600/800 series that are about 20" long with a pipe size about 2" and a 4" can that will bark a little but not too bad. Easy to look thru and see if they have the baffles, and decide which way you want to go. I put an unbaffled Ford 800 muffler on a Deere 430W "Johnny Popper" instead of the Deere-spec that had a baffle, as "Poppers" should pop lol

 

Please save the open exhaust for the track, if it's even allowed.

 

I have the Hemi turbos on my '48 Chevy with a stock 305, not completely quiet but not noisy either. I have the same mufflers with a Magnaflow Tru-X on my '53 F100 with a mild 350 and it sounds completely different.

 

<< Been operating a Custom muffler shop since 1982

 

Lol....if anyone else were to chime in with their experiences...it would be good to know if you're using turn downs before the axle, or full tail pipes. Ive found it hard for any muffler combo with turn downs to not drone or rumble at certain rpm speeds..

 

An old question but a good option still would be a pair of the Walker Quiet Flow 21856. Oval body, 2.5" inlet and outlet, and 19" body at 23" overall. Offset inlet-center outlet. Will be quiet and will last and should sound fine on most setups. I think they retail round $65 each and have a lifetime warranty (I think).
Tom

 

I believe a few are holding on. The noise police have not arrived at my haunts. Where are you from Nepal?

 

As stated out the back will help a lot. Without a giant cam and 11-1 compression I would look to what will fit. Any 50's 3 tunnel would be as quiet the stock passenger car your engine was originally installed. I've heard enough "sound alike" 3" exhaust big block Chevelles, Novas, and Camaro's that I know what I don't like (and don't turn and look when one cruises by). Stock 3 tunnels for me...

 

Having tried and endured all manner of exhaust abuse over the decades, I've concluded that quieter is better... now....back then , not so much. An old guy who operated a repair shop in our town, upon watching my brother and I installing purple hornies on a recently swapped out V8 into a project car, shook his head, unleased a torrent of profanities concerning us and the ongoing effort, and then proceded to explain how it was the biggest clusterfuck mistake anybody could make. " Makes ya inta' nuthin' but cop bait....yer a couple a morons...Everybody knows a couple a caddy mufflers do the same godamn thing". I guess maybe it does pay to listen to your elders....when they're also the town justice of the peace.....life is a long learning process.

 

My need for attention does not exceed my desire to respect my neighbors.

 

In 1959-60 they were called “Corvette Off Road” tube mufflers.


Hello,

It is or will be obvious that the full length exhaust pipe that exits under the rear bumper is the best for all around looks and being quiet. we have tried all sorts of exhaust tips and lengths. each has a drawback, noise or fumes... But, the full length exhaust pipe is the best all around. If your motor is powerful, the full length pipe will still make some noise, but for daily driving in stop and go or long distance driving trips, it is music to our/your ears.

Jnaki

For comfort for your passenger and for your own sanity, pick a muffler that is quiet and does not pop when letting off of the gas at any point in the movement. There is nothing irritating or embarrassing to the driver if your exhaust noise draws unwanted attention as being "an idiot with a Mustang."


previous post:

Hello,

When we had our 1958 Chevy 348 Impala, we needed some straight through mufflers to give us less restriction, but still be street legal. Since it was a Chevy dealer catalog parts number, it was legal for stock car class racing at the dragstrip. The mufflers by themselves and no tail pipes made a very noticeable sound. Normal driving was a little on the loud side since the end of the mufflers were near the middle of the Impala. When we had our friend the neighborhood muffler shop owner measure everything, he just installed the tube mufflers first and we had to come back a week later.

With the tube mufflers, the 348 sounded perfect, but loud. Acceleration down any street was tremendous and thrilling. After the muffler guy had all of the exact pipes ready, he welded and installed piping out to the rear. Now, the sound was very quiet and those that rode in the Impala were impressed with the slightly “toned” idle. The times at the drag strip did not change very much. But it was slightly better. Tube versus off set stock mufflers were definitely better.


Jnaki

As far as the length of the tube corvette “off road” mufflers were, I have no idea. But they fit nicely where the stock mufflers used to be underneath and tucked in nicely. They are still around from different sources. Obviously, they are re-manufactured versions. The added long tail pipes definitely made a quieter sound, so talking inside with the windows rolled down on a hot summer night was easily done, without shouting.

As nice as Magnaflow systems are, the one version of tube mufflers from Magnaflow offers, makes a popping sound on some of the high performance cars in these modern days. That is not worth the cost or effort. It makes the modern car sound like a backfiring, mistuned car. Not too nice for those people walking around. There is this young guy in the neighborhood that thinks his fastback sedan is the cat’s meow with the popping sounds when he lets off of the gas. It just sounds awful and does nothing for performance. YRMV

https://www.jalopyjournal.com/forum...r-hot-street-car.1130653/page-2#post-12879733

 

After 11 years there's a good chance they've been replaced by now.

Locally, PIR has noise restrictions to run on Wednesdays (1/8th mile brackets). Too many neighborhoods popping up (mostly in tents) so it's either keep the noise down or cancel the fun. I vote to abate the noise and race away.

 

Given the circumstances I think we would all vote the same way. Unfortunately the problem here seems to be lack of support not noise that is closing the tracks. A few have had to move the starting time a few hours to keep the peace but the sparsely populated bleachers has had more of an impact than complaining neighbors.
I have been to a few events that had noise restrictions and it just ain’t the same. To me that’s part of the experience. To feel it in your chest when an open header car goes by. Even with ear plugs the noise shook your soul. Going to a quiet drag race is kind of like going to an air show that featured nothing but gliders.
Edit: It’s probably a moot point anyway, they will all be electric soon.

 

May it never be!

 

Then why can’t you respect someone else’s view. I get along great with my neighbors and I respect them. I even respect your narrow view.

 

This is what I had on a 67 SS 396. Had 2 that were supposed to go on a 500 cid Caddy sedan and I was running a built 327 (~420 or so hp). Really good for street events (we don't use the R-word anymore). The car sounded like it had at most a low hp 283, so it flew under the radar, at least until side stepping the clutch at 6k rpm. And yes you can break a Muncie M22 transmission...

 

Yep...I broke two