Ok Hambers. Getting ready to put dual exhaust on my 46. Engine and exhaust are too damn quiet. Can't hear it run. Want to run it all the way back. Would like a quiet idle, but a bit of noise from the loud pedal. Any ideas ladies and gentlemen ? The engine is running two passenger side cast iron manifolds.
I have 14" glass packs with 1 3/4" pipe in my stake truck. Here's when I dropped the 283 in it for a little while. Sorry if I smoke ya out, but that and the hemorrhaging rear main seal is why it came out.
x2 - glass packs are Cool but, they get louder to very loud as the "glass" packing deteriorates - had a ride nick named "LaBomba" because of glass packs ending up just being hollow tubes
I've had good luck with duel spintechs. Have them on my Falcon, and they give great sounds and quiet it down quite a bit Sent from my SM-G950U using The H.A.M.B. mobile app
Another vote for turbo's. 2 1/2" pipes from the manifolds to the mufflers, and 2 1/2 over the rear axle if you have room, if not 2 1/4 will be fine. If possible take the exhaust all the way out to the rear bumper. That is a guaranteed good sounding exhaust, not too loud, quiet at idle, but a nicely audible warm tone when you push down on the throttle pedal.
What ever you do don't use an X pipe, to me, they make a V-8 sound like a V-6.. Blues4U has the right idea. Use the stock exhaust manifolds, 2-1/2" out into two Turbo Mufflers Dynomax 17749, then out to full tail pipes to the bumper or behind the rear wheels.. I like turn down tips, have the right side at 5:00 and the left side at 7:00. That gives it a nice look... I remember seeing that for the first time on a brand new 64 Grand Prix.. The tail pipes add to the sound big time! They take those blatty drone sounds away and help the car to sound real nice... After a few thousand miles those turbo mufflers will start to sound real mellow, like a Chris Craft speed boat.
The nice thing about Turbos is they sound better as they get older.. The pair of Dynomax 17749s I have behind my 454 in my el Camino sound so nice..... Another nice feature is they flow better then most of the mufflers on the market today..
X4 or whatever that some of the generic turbo mufflers are a good choice. Several mfrs, they are all going to give nice deeper sound, but not too quiet. Mufflers located back right before the rearend is better sound than if they are up front nearer to the engine. Turndowns at the rearend will be louder than full tailpipes, all the turns in the tailipipes also help cause turbulence and quieting down some.
What about Patriot side pipes that come with mufflers, hangers, etc..here they are on my '46 Chevy...
Here is a copy of the earlier post on mufflers. If you want loud, make short exit pipes. With the standard exit pipes going out of the back under the bumper, they are super quiet. No noise tickets for 6 years of daily/weekly driving and long road trips. We all know the difference a straight through muffler pipe has over a muffler that has offset pipes going every which way inside of the casing. For us, it improved performance and a mellow, quiet sound. In 1959-60 they were called “Corvette Off Road” tube mufflers. 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
Porters or Smithy's (smittys) are steel packs they would give a true '50s early '60s sound. On a stock or mild 283 I would run a 2" pipe. I am more of a glass pack type. I run Cherry Bombs in the early '70s because they were hyped, I tried Purple Hornies once but didn't care for the sound. I used to run Thrush Mufflers too, but they had a tendency to be a little harsh. if you go with a generic glass pack which is what I usually use any more I like an 18" minimum muffler and have run the long ones. Look for the ones that are directional (the louvers on the inside are facing in a distinct direction) and run them in the right direction for sound control. The glass will stay in them longer that way. They need to be broken in properly run them at a fast idle and get them hot, let them cool and do it again once or twice, do not immediately throw the meat to them or they will dump the packing right out on the driveway. Have fun that is what you are paying for is fun right?
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