Hey guys, Ive got a '71 dodge demon and it has a 225 slant six in it but it sounds like a pussy car. What would I need to do to get it to sound more like a muscle car? This is my first car project and I need all the help I can get. Thanks guys!
Need Advice on Exhaust
- Thread starter woody_3
- Start date
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67Dart273
Well-Known Member
Pull the slant and install a 340?
Need more info. What do you WANT?
You can dump a hell of a lot of money into a slant for some return, and you may or may not be happy in the end. Some would be, but I like V8s
Need more info. What do you WANT?
You can dump a hell of a lot of money into a slant for some return, and you may or may not be happy in the end. Some would be, but I like V8s
65Val
Average Length Member
I have to agree w/ 67Dart273...if you want the "V8 Sound", you'll have to install a V8!...preferrably with a good dual exhaust system.
1968FormulaS340
Well-Known Member
2 1/4" exhaust with a Carolina Blue Boy.
(Now, being from Oregon, I don't even know what a Carolina Blue Boy is. My wife, on the other hand, is from the south. She refers to them all the time. One of the first things she put on her new Chevy truck, back in the day.)
(Now, being from Oregon, I don't even know what a Carolina Blue Boy is. My wife, on the other hand, is from the south. She refers to them all the time. One of the first things she put on her new Chevy truck, back in the day.)
65Val
Average Length Member
Well, I googled it, and still don't know WTH it is. Care to elaborate?
1968FormulaS340
Well-Known Member
From what I can tell, it's some special mystery muffler often ran in the great American south.
That's about all I know. She won't tell me more.
67Dart273
Well-Known Member
LOL. Only thing I found was "Blue Boy Muffler ..........on the Island of Guam!!!!
They drag race on Guam???
http://www.dragguam.com/dragboard/showthread.php?t=27182
They drag race on Guam???
http://www.dragguam.com/dragboard/showthread.php?t=27182
65Val
Average Length Member
Flog her with a wet noodle!!!....WE MUST KNOW!!! :blob::blob::blob:
Use a 2 1/4 pipe and either a straight through muffler or a Turbo muffler. I believe the Dart Lights and Feather Dusters used this size. If using a straight through muffler it may take 2, the second near the end like a resonator, to keep it quiet enough on the highway. You may be suprised if you adjust the valves.
My guess as to a "Blue Boy Muffler" would be a cheap straight through glass pack bullet style muffler.
grimreaper
Cross Member
Just prior to my days of hot rodding people would put on "Smitty"s. A straight through steel pack muffler. By the time I was actually working on cars the standard for exhaust volume became the "Thrush" and then the "Cherry Bomb" glass pack. We had an oil boom in the area and the folks coming up from the south used "Blue Boys" instead of "Thrush" or "Cherry Bomb". I found out they were a generic blue glasspack. I got some back in the day from Warshawski & Co. (later J.C. Whitney).
IMO, if you really want it to sound like something other than a /6, you'll need to install a dual exhaust. A set of headers would be needed to accomplish that, then just run it like a "normal" dual system with a set of turbo's or the like, just a little smaller diameter. That will cost a decent chunk of change though.
The other way to liven it up a bit would be to follow the above suggestions of a 2 1/4" pipe with a straight through muffler. That would be a lot easier to do on the cheap, and although it wouldn't sound quite as good as a dual system it would still sound better than stock.
The other way to liven it up a bit would be to follow the above suggestions of a 2 1/4" pipe with a straight through muffler. That would be a lot easier to do on the cheap, and although it wouldn't sound quite as good as a dual system it would still sound better than stock.
Nope. I've got Dutra Duals with 2" pipes and no crossover all the way to the rear bumper, and once it's above idle, it still sounds like an inline six. A sound I happen to love, BTW.
The only way to make a /6 sound like a V8 is to replace it with a V8, as the first comment suggested. FYI, you also can't make a 4-banger sound like a V8, nor can you make a V12 sound like a V8. But you don't hear about Viper guys wanting their cars to sound like V8's, do ya?
Revel in the fact that you have something different, or swap engines.
68383GTS
Well-Known Member
Yep drop in a V8.I know what you mean I have a 198 in my Duster.....
I guess I should have been a little more specific. The dual exhaust sound is different for a /6 vs. a V8 obviously, putting a dual exhaust on a /6 won't make it sound like a V8. But it will make it sound different than a stock /6 does through a single pipe. Putting a dual exhaust on a /6 still improves the way it sounds over a single pipe, just like putting a dual exhaust on a V8 improves the way it sounds vs. a single pipe.
But that's just my opinion, I like dual exhausts.
67Dart273
Well-Known Member
Sorry, disagree. I've heard plenty of inline six's with either split manifolds (homemade or commercial) and with headers, and this makes a distinct sound quite different from single exhaust
You can't make a V12 sound like an 8, but you can make it sound like a SIX, just like you can make a V8 sound a lot different. Google up Ferrari, flat crank, 180 degree crank.
Last, Vipers are not V12s!!!!
THIS does not sound like a V8!!!
[ame="http://www.youtube.com/watch?v=tbEUwiprYC0"]Lingenfelter Flat Plane Crank LSx Dyno - YouTube[/ame]
[ame="http://www.youtube.com/watch?v=PEcnq3Is0Q4"]Lingenfelter Flat Plane LSx race car runs a 9.13 - YouTube[/ame]
Agreed on all counts. The OP said he wants his car to "sound like a musclecar", but to me, a musclecar sounds like a V8. Period.
Depends on his definition of musclecar, I guess. Some folks equate "old car" with "musclecar". To me they're two different things.
Im looking for loud. I don't have the money to drop a v8 in it yet. Im only 17 and I barely scraped up the money for the car. A v8 is not an option yet. Eventually in the future i will put a v8 in it.
...and sometimes a V-8 doesn't have the typical V-8 "musclecar" sound! Back in the late 60s/early 70s there was a big-block Mopar that ran at OCIR with 180-degree headers and sounded more like an angry sports car than a big-block drag race engine.
Have you ever heard a set of open 180-degree headers on a V-8? Do any of you remember what the "bundle-of-snakes" headers on the first Ford V-8s run at Indy back in the 60s or the Ford GT40s that ran at LeMans? Definitely not a V-8 sound.
Here's a link to some info on 180-degree V-8 headers if you've never heard of them: http://www.burnsstainless.com/bundleofsnakes-2.aspx
Have you ever heard a set of open 180-degree headers on a V-8? Do any of you remember what the "bundle-of-snakes" headers on the first Ford V-8s run at Indy back in the 60s or the Ford GT40s that ran at LeMans? Definitely not a V-8 sound.
Here's a link to some info on 180-degree V-8 headers if you've never heard of them: http://www.burnsstainless.com/bundleofsnakes-2.aspx
74Dusted
Stock Piler of 340's
Run duals with 2 different mufflers.
Honestly I'm not sure what to suggest. As a teen I had a 4-banger that sounded like a pissed off V8.
It was a 2.6L in a D50 pickup, with a Milled Aftermarket Non-Jet Valve Head and Forged Pistons (a real 10.5:1 compression), Custom ground cam, Dual Weber 2BBL Carbs, Header, 2.5" Single Exhaust with a Glasspack. It sounded like a V8 and revved like a 340. unless you were in front of the truck above 2k rpms, with the solid (mechanical) fan, above 2k it sounded like a jet engine going down a runway, the fan sucked that much air through the radiator.
Could never get that thing to keep traction in 2WD, especially if it was raining
Honestly I'm not sure what to suggest. As a teen I had a 4-banger that sounded like a pissed off V8.
It was a 2.6L in a D50 pickup, with a Milled Aftermarket Non-Jet Valve Head and Forged Pistons (a real 10.5:1 compression), Custom ground cam, Dual Weber 2BBL Carbs, Header, 2.5" Single Exhaust with a Glasspack. It sounded like a V8 and revved like a 340. unless you were in front of the truck above 2k rpms, with the solid (mechanical) fan, above 2k it sounded like a jet engine going down a runway, the fan sucked that much air through the radiator.
Could never get that thing to keep traction in 2WD, especially if it was raining
TomMoparMan has a /6 Dart that has a sound like a V8. I will text him and let him know you have a question. tmm
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