New Thread About Exhaust Tone

[jakdad]

Most of it has to do with the type of exhaust system, not cubic inches! I remember 460 Lincolns and 500 cubic inch Cadys that were extremely quiet. I will concede that a Briggs & Stratton one lunger could make enough noise to drown out the Cady and Lincolns. My 5.4 Lightning didn't make any deeper tone than most Mustang GTs on the street. The Lightning did get much deeper when I strapped the Bassani system on. If you run open headers, they not only get deeper but louder, not to confuse the two. Your turn.

[BillyGman]

If you run open headers, they not only get deeper but louder, not to confuse the two. Your turn.LOL..... yeah, but try putting a Lightning w/open headers up against a Marauder w/open headers. Or for that matter, a Lightning w/a stock exhaust along side a Marauder w/a stock exhaust. They will both make the same level of noise as far as measured in decebels I'm sure. But aside from how loud or how quiet each one is, the exhaust note will have a deeper tone coming from the Lightning due to the increased displacement. There are bigger combustion events going on inside the engine that has more displacement due to the increased amount of air and fuel in the cylinders. Have you ever played around w/fireworks or used firearms? I have. An M-80 has a higher pitched explosive noise than the bigger M-100 does. the M-100 firework is not only louder, but also emits a lower tone thast has more bass to it, which is simply due to the increased amount of explosive flash powder contained therein. Just as a 44magnum handgun that's fires has a more bass (or "deeper") sound coming out of the barrel than a 357 magnum or a 9MM handgun does. there's more gun powder in the 44 mag round.

You're missing the point w/your examples. Especially the one concerning the 460 Lincolns and big block Caddy engines. yes, I had two caddy's myself w/472 engines. they're quiet because of the stock exhuast systems being restrictive, and very muffling. But had you put headers, and 18" magnaflow muffs on that Caddy or that 460 Lincoln like I and others have on our Marauders, I garantee you that the exhaust note would be much deeper coming from those cars than from my Marauder.

[Marauder386]

I had a '69 Coupe Deville and a '70 Sedan Deville < funeral home car> both with that big honkin 472... N E way... I had put Thrush Cherry Bombs on both of them after a refit in the exhaust and found they were LOUDER.....not deeper in sound than my buddies '70 Fastback SCCA car that ran with open headers...Just my input...
Wish I still had the Sedan Deville....usedto put a twin mattress in the back after taking out the seat bottom.... NM NM thats a WHOLE 'nother story....


M386

[BillyGman]

I had a '69 Coupe Deville and a '70 Sedan Deville < funeral home car> both with that big honkin 472... N E way... I had put Thrush Cherry Bombs on both of them after a refit in the exhaust and found they were LOUDER.....not deeper in sound than my buddies '70 Fastback SCCA car that ran with open headers...Just my input...
But you're overlooking the same thing........what about if you put headers on that 472 powered Caddy engine and ran it also w/open headers? You would've experienced a much deeper tone. We have to compare apples to apples here. And BTW, I'm not talking about just how exhaust notes sound at idle, but while you wind the engines up also.

[Joe Walsh]

Not to misdirect this 'exhaust tone' thread...but it brought back fond memories of driving a friend's 502 cid Cadillac...we called it the "ROLLING LIVING ROOM". It made my MM seem like a small car! Punch that thing from a stop and the quadrajet 4 barrel would BOG like a pig until @ 20mph then the "Rolling Living Room" would vaporize the rear tires up to 60mph!!! Best of all they weren't MY rear tires. AHHHH Cubic Inches.

[BillyGman]

Not to misdirect this 'exhaust tone' thread...but it brought back fond memories of driving a friend's 502 cid Cadillac... Punch that thing from a stop and the quadrajet 4 barrel would BOG like a pig until @ 20mph then the "Rolling Living Room" would vaporize the rear tires up to 60mph!!! AHHHH Cubic Inches.
Yep, I hear ya Joe. My 70 caddy had the 472 which was actually a more potent motor than the 500 was because it had a higher compression ratio (10.0:1). I usually had to retard the ignition timing a bit to prevent it from pinging on 93 octane gas though, but if I set the timing to 8 degrees BTDC, that thing would smoke those tires immediately from a dead punch. And it did that while stock, while it took a 3,000 RPM stall speed, aftermarket torque converter, and 4.56 gears for my Marauder to do that off the line. There's no replacement for displacement as they say. (unless ofcourse you're going to spend the money for a Supercharger;) ).........

[TripleTransAm]

Firing order has a great deal to do with exhaust note/volume as well. A local F-club member has a 1997 Ram Air Formula (350 cu.in. LT1) and stuck the SLP loudmouth system on it... insanely loud at idle. My 1998 LS1 (346 cu.in) with a straight pipe coming out the passenger's side of the rear (with factory muffler feeding the driver's side) is TOTALLY quiet at idle. Difference? (besides 4 measely cubic inches, and cavernous ports on my LS1):

Firing order.

Above 2000 RPM it's anybody's guess as to who's louder (my '98 or his '97 - I still think my LS1 sounds more Nascar-ish under load above 2000) but you'll be hard-pressed to hear my idle note when my engine's warm.

Side note: a lot of 1998 LS1 F-body owners were actually posting online asking if it was possible to change the LS1's firing order back to the classic Chevy small block firing order, in an attempt to get a better sound! :lol: (personally, my 1998-specific single-outlet WS6 muffler worked to my advantage, being able to add an unmuffled outlet at minimal cost)

[BillyGman]

AAAAAAHHHH that old Chevy firing order...1-8-4-3-6-5-7-2 ..that brings back memories.......(uhmm, okay, now I must really sound like a gearhead, uh?)


...anyway, back on topic.....there are three things in play here that we're talking about:

1. Noise level (quieter/louder)

2. differences in sound (the presence of the audibility of the exhaust pulses, and the raspiness, or growling noise so common to V8 engines)

3. The bass or "deepness" of the exhaust note(which was what I was talking about, and is mainly determined by the displacement of the engine in question. The more displacement, the more bass there will be to the exhaust note, especially when it's made to be loud by a low restrictive muffler.)

yes Steve, I agree that many things can change the characteristics of the exhaust note, such as firing order, the shape of the combustion chambers, how well the cylinder heads breath, types of exhaust, and even the exhaust lift and duration of the camshaft. But the actual bass, or "deepness" of the exhaust note will be effected more by cubic inches than by anything else.

You can get a Marauder's exhaust to sound a little bit more bass by installing a free flowing exhaust like many of us have, but you'll never get it to be as bass, or as "deep" sounding as a V8 engine with condsiderably more cubic inches will should that also has an exhaust that's just as free flowing as yours. That's why I say, put open headers on your Marauder, and open headers on your 5.7L Trans-Am, and when you wind up each engine to 3,000 RPM's, 4,000 RPM's, and 6,000 RPM's respectively, your Trans-Am will be just as loud, yes, but will also have a deeper tone, or one that has more bass to it. And that's a direct result of the extra displacement under the hood.

[jakdad]

AAAAAAHHHH that old Chevy firing order...1-8-4-3-6-5-7-2 ..that brings back memories.......(uhmm, okay, now I must really sound like a gearhead, uh?)


...anyway, back on topic.....there are three things in play here that we're talking about:

1. Noise level (quieter/louder)

2. differences in sound (the presence of the audibility of the exhaust pulses, and the raspiness, or growling noise so common to V8 engines)

3. The bass or "deepness" of the exhaust note(which was what I was talking about, and is mainly determined by the displacement of the engine in question. The more displacement, the more bass there will be to the exhaust note, especially when it's made to be loud by a low restrictive muffler.)

yes Steve, I agree that many things can change the characteristics of the exhaust note, such as firing order, the shape of the combustion chambers, how well the cylinder heads breath, types of exhaust, and even the exhaust lift and duration of the camshaft. But the actual bass, or "deepness" of the exhaust note will be effected more by cubic inches than by anything else.

You can get a Marauder's exhaust to sound a little bit more bass by installing a free flowing exhaust like many of us have, but you'll never get it to be as bass, or as "deep" sounding as a V8 engine with condsiderably more cubic inches will should that engine also have an exhaust that's just as free flowing as yours. that's why i say, but open headers on your marauder, and open headers on your 5.7L Trans-Am, and when you wond up each engine to 3,000 RPM's, 4,000 RPM's, and 6,000 RPM's respectively, your Trans-Am will be just as loud, yes, but will also have a deeper tone, or one that has more bass to it. And that's a direct result of the extra displacement under the hood. My point exactly. You refer to headers, mufflers etc. The exhaust system has more to do with the tone than cubes. If you stay with cast iron manifolds, heavy exhaust tubing, stock mufflers and cats, you don't have much tone or loudness. I didn't want to mention it this early in the thread but compression ratio has a lot to do with tone. O,boy, whole 'nother can of worms!
:rock: :rock: :rock:

[BillyGman]

most compression ratios on the street are all close to being the same these days because of pump gas. the only way you'll get an appreciable different sound is to take it up past 11.0:1 CR and now you're talking a track car. But in the way of street cars, my original point, and one that perhaps I still haven't made clear, is that you take the same or similar exhaust mods that you put into your Marauder, and put the same ones (such as headers, X-pipe, magnaflow muffs) on a 350 engine car,and that car will not be any louder, but it will simply have a deeper exhaust note at the same RPM. If you don't agree w/that, then I don't think you've payed much attention to the difference in the way cars sound. And in that case we will simply never agree on this.

[jakdad]

most compression ratios on the street are all close to being the same these days because of pump gas. the only way you'll get an appreciable different sound is to take it up past 11.0:1 CR and now you're talking a track car. But in the way of street cars, my original point, and one that perhaps I still haven't made clear, is that you take the same or similar exhaust mods that you put into your Marauder, and put the same ones (such as headers, X-pipe, magnaflow muffs) on a 350 engine car,and that car will not be any louder, but it will simply have a deeper exhaust note at the same RPM. If you don't agree w/that, then I don't think you've payed much attention to the difference in the way cars sound. And in that case we will simply never agree on this.
How true.......................... ..........
Bench racin' never gets the same winners................
Most of my experience was in circle track cars and street cars that we built from the ground up................
Paying attention.................Nah. ..................
Never be a sheep, lead or get the h*LL (h@L) out of the way...............
:lol: :lol: :lol:

[cyclone03]

Here comes the wrench....

Compression has a lot to do with engine sound too.

A supercharged car with the same exhaust as a normaly asperated car will be lowder under load.

[bryanknie]

My old 1952 Truck has the original 239 ci Flathead, dual carbs, cam, high compression heads and headers to open pipes out the the rear of the truck, you ought to hear this puppy growl, it sounds like a big block and sound wise puts the MM to shame.

Only 100hp stock, I dont know what it has now maybe 150.

[TripleTransAm]

Here comes the wrench....

Compression has a lot to do with engine sound too.


How VERY true, Cyclone03!! I recall a high school friend's 1975 Lemans with a blown-up 400 4Bbl that showed 0 compression on 4 out of the 8 cylinders, and it was pretty damned quiet.

:stooges:

[BillyGman]

Hmmm, I just think that when it comes to the actual compression ratio ( or in the case of Steve's example, LACK thereof) we're talking about extremes. I noticed a very slight difference in the way that my Vette exhaust note sounded when I took the compression ratio from 10.2:1 up to 11.0:1, yes, but it wasn't a big enough change for anyone to hear it from outside the car as I was passing by them, and the change in sound had to do w/the exhaust pulses, or the V8 growl being slightly more apparent (more of a growl, and less of a smooth sound). But it didn't give the exhaust note more bass, or cause it to be deeper in tone. Again, I'm not talking about the exhaust being louder, nor quieter, I'm talking about how low-pitched (bass) or how high-pitched it is regardless of how loud it is. And that low or high pitch is mostly determined by engine displacment, and the more free flowing the exhaust of a car is, the more apperent it's exhaust pitch is whether it be a higher or a lower pitch.


I think that if you you guys were to pay close attention to how low or high the pitch of the exhaust sound of a car is whenever you hear someone getting into the gas pedal, instead of merely how loud it is, and every time you do, you consider how many cubes are under the hood of the car in question(as long as it's known) then you would understand what I'm talking about. I'll take you back to one of the two examples that I gave in one of my previous posts. Fireworks. You know when you go to see your town light off a fireworks display, and especially durung the grand finale of the show, after the colors of each piece bloom up in the sky, you then hear a barrage of explosions? Well think of how different the sounds of the smaller explosions are from the that last big one let's loose. Sure that big one is louder, but in addition to being louder, it also has a different sound to it. It's a lower pitched sound than the smaller explosions were before it. It's deeper, and has more bass to it, while the other several smaller explosions just seconds before it were not only quieter, but had less bass to their sound. They were higher in pitch.

That's what I'm talking about in the way of exhausts as to how they relate to engine displacement, and it's the same as when (and IF) you've lit an M-80 firecacker, and then grabbed an M-100 and lit that off. It's not just louder than the M-80 was, but it has a deeper, or a lower pitch to the sound that it emmits. That's just like the Dodge Magnum R/T truck that's owned by this guy that works where I do. The exhaust sound on my Marauder is now just as loud as the one of his truck since I have headers, and the rest of the goodies on the exhaust. But it emits a higher pitched sound than that guy's truck does simply because he has a 360 cube engine under his hood while there's a 281 cube engine under the Marauder hood. My car makes just as much noise when I wind up the engine as his truck does, but his truck's exhaust simply has a lower pitched sound to it.

I suggest you pay attention to Impala SS cars, Camaro SS, Dodge R/T trucks when they hit the gas as they're going by you, especially if they have free flowing exhausts. Because they all have 350 and 360 engines, you'll hear exactly what I'm talking about. Even the Ford 5.4 engine has a deeper tone to it that can be noticed when there's a free flowing exhaust attached to it. Although it's a little less bass, or not quite as deep toned as the 350 and 360 engines of Dodge, Chevy, and Pontiac. And if we ever see any Dodge Magnums with headers and free flowing mufflers on them (which I kinda doubt will happen, but that's another subject) then you'll notice that those engines will have a lower pitched sound to them too, simply because of the 70 addition cubic inches of displacent that they have over and above ours engines.


As far as the comment about a S/Cer changing the exhaust note, that might be if you're pushing 15 or 20 PSI of boost or more, but as much as I thought that my car would get louder when I S/Ced it or sound different, the fact is that it doesn't. So that's the story with 9.5 PSI of boost(which is what I'm running). But again, what I'm talking about concerning exhaust note and displacement, is NOT neccessarily how loud the exhaust is ,(and that's what some people are getting hung-up about here) but the pitch of the tone being higher or lower. It's simply lower w/the bigger engines, and the louder you make the exhausts on those engines, the more apparent that is. Just as the louder that you make the exhaust on smaller engines, the more apparent it is that their exhaust note has a higher pitch to it.

[Fourth Horseman]

Don't have a clue about any of the technical details you all are mentioning, but my exhaust sounds deeper since I went with the resonator-delete tips. People that hear my car regularly have mentioned it to me as well. I know plenty of others here have gone this route long before I did. I'm curious if they noticed the same deeper sounding exhaust tone as well and what mufflers they're running.

[BillyGman]

But just ride alongside of a car w/a 350 or 360 cube engine (5.7L, or 5.9L) that obviously also has an exhaust atleast as loud as your does, and listen to his vehicle if he winds it up. And you'll see that his exhaust has a lower pitched sound to it.

[SergntMac]

Don't have a clue about any of the technical details you all are mentioning, but my exhaust sounds deeper since I went with the resonator-delete tips. People that hear my car regularly have mentioned it to me as well. I know plenty of others here have gone this route long before I did. I'm curious if they noticed the same deeper sounding exhaust tone as well and what mufflers they're running.
And they should. I know you know this FH, but someone will ask...

The difference is in the tip, I mean what's inside the tip. The OEM tips are "resonated" by an 18" extension of the 2.25 OD tailpipe into the tip. This resonates the by decreasing the megaphone effect of the tip. Results = quieter exhaust. The aftermarket "delete" tips do not extend into the tip, but convert the 2.25" OD tailpipe to 3" OD for the full length of the tip. Larger megaphone = more megaphone effect...Louder, yes?

[jakdad]

Hmmm, I just think that when it comes to the actual compression ratio ( or in the case of Steve's example, LACK thereof) we're talking about extremes. I noticed a very slight difference in the way that my Vette exhaust note sounded when I took the compression ratio from 10.2:1 up to 11.0:1, yes, but it wasn't a big enough change for anyone to hear it from outside the car as I was passing by them, and the change in sound had to do w/the exhaust pulses, or the V8 growl being slightly more apparent (more of a growl, and less of a smooth sound). But it didn't give the exhaust note more bass, or cause it to be deeper in tone. Again, I'm not talking about the exhaust being louder, nor quieter, I'm talking about how low-pitched (bass) or how high-pitched it is regardless of how loud it is. And that low or high pitch is mostly determined by engine displacment, and the more free flowing the exhaust of a car is, the more apperent it's exhaust pitch is whether it be a higher or a lower pitch.


I think that if you you guys were to pay close attention to how low or high the pitch of the exhaust sound of a car is whenever you hear someone getting into the gas pedal, instead of merely how loud it is, and every time you do, you consider how many cubes are under the hood of the car in question(as long as it's known) then you would understand what I'm talking about. I'll take you back to one of the two examples that I gave in one of my previous posts. Fireworks. You know when you go to see your town light off a fireworks display, and especially durung the grand finale of the show, after the colors of each piece bloom up in the sky, you then hear a barrage of explosions? Well think of how different the sounds of the smaller explosions are from the that last big one let's loose. Sure that big one is louder, but in addition to being louder, it also has a different sound to it. It's a lower pitched sound than the smaller explosions were before it. It's deeper, and has more bass to it, while the other several smaller explosions just seconds before it were not only quieter, but had less bass to their sound. They were higher in pitch.

That's what I'm talking about in the way of exhausts as to how they relate to engine displacement, and it's the same as when (and IF) you've lit an M-80 firecacker, and then grabbed an M-100 and lit that off. It's not just louder than the M-80 was, but it has a deeper, or a lower pitch to the sound that it emmits. That's just like the Dodge Magnum R/T truck that's owned by this guy that works where I do. The exhaust sound on my Marauder is now just as loud as the one of his truck since I have headers, and the rest of the goodies on the exhaust. But it emits a higher pitched sound than that guy's truck does simply because he has a 360 cube engine under his hood while there's a 281 cube engine under the Marauder hood. My car makes just as much noise when I wind up the engine as his truck does, but his truck's exhaust simply has a lower pitched sound to it.

I suggest you pay attention to Impala SS cars, Camaro SS, Dodge R/T trucks when they hit the gas as they're going by you, especially if they have free flowing exhausts. Because they all have 350 and 360 engines, you'll hear exactly what I'm talking about. Even the Ford 5.4 engine has a deeper tone to it that can be noticed when there's a free flowing exhaust attached to it. Although it's a little less bass, or not quite as deep toned as the 350 and 360 engines of Dodge, Chevy, and Pontiac. And if we ever see any Dodge Magnums with headers and free flowing mufflers on them (which I kinda doubt will happen, but that's another subject) then you'll notice that those engines will have a lower pitched sound to them too, simply because of the 70 addition cubic inches of displacent that they have over and above ours engines.


As far as the comment about a S/Cer changing the exhaust note, that might be if you're pushing 15 or 20 PSI of boost or more, but as much as I thought that my car would get louder when I S/Ced it or sound different, the fact is that it doesn't. So that's the story with 9.5 PSI of boost(which is what I'm running). But again, what I'm talking about concerning exhaust note and displacement, is NOT neccessarily how loud the exhaust is ,(and that's what some people are getting hung-up about here) but the pitch of the tone being higher or lower. It's simply lower w/the bigger engines, and the louder you make the exhausts on those engines, the more apparent that is. Just as the louder that you make the exhaust on smaller engines, the more apparent it is that their exhaust note has a higher pitch to it.
And the Ford campaign back in 1965 designated the 289 Hi-Po as "The Little 'Ol Whine Maker"!! And they did scream.

[BillyGman]

And the Ford campaign back in 1965 designated the 289 Hi-Po as "The Little 'Ol Whine Maker"!! And they did scream.
AAhh yes, I think you know what I'm talking about now. Hey, don't look now, but I think we might actually be agreeing!!!! ;)

[Fourth Horseman]

But just ride alongside of a car w/a 350 or 360 cube engine (5.7L, or 5.9L) that obviously also has an exhaust atleast as loud as your does, and listen to his vehicle if he winds it up. And you'll see that his exhaust has a lower pitched sound to it.

I'm not so sure at low RPM, but at higher RPM certainly. The 4.6 starts sounding its size when I spool it up above 3000 RPM or so.

[BillyGman]

I'm not so sure at low RPM, but at higher RPM certainly. The 4.6 starts sounding its size when I spool it up above 3000 RPM or so.
Yep, that's what I'm talking about, and it's definately determined by engine displacement.

[Joe Walsh]

Using an X pipe will definitely change the pitch of the exhaust regardless of C.I.D. When I put on my Kook's with 2.5" exhaust and X pipe the exhaust got louder AND the pitch got higher. When you wind it up it sounds more like a Ferrari...different than what I expected, but I really like it!

[FiveO]

After I put my Kooks system in I was a bit disappointed with the sound.


After a couple weeks with it....I wouldn't have it any other way.... I love it! Its really grown on me quickly. I love the growl....

My father even said "You can hear that thing a mile away!".....

I said......"cool" .... :cool4:

:D

[HwyCruiser]

Using an X pipe will definitely change the pitch of the exhaust regardless of C.I.D. When I put on my Kook's with 2.5" exhaust and X pipe the exhaust got louder AND the pitch got higher. When you wind it up it sounds more like a Ferrari...different than what I expected, but I really like it!

Same here with the Cobra Exhaust w/ Magnaflows. I wasn't expecting a sceamer. It sounds like a banshee at full throttle under a bridge - I love it! Scares the keck out of the kids too! :whistle:

- JD

[jakdad]

You guys are still talking about modified exhaust systems changing exhaust tone, not cubic inches! Example: Small tube headers have a higher tone than large tube headers. Same with the rest of the exhaust system. Change mufflers, change tone. Lightnings have a deeper tone than other Ford gas engines or Chevy for that matter. Reason? Exhaust dumps out the side (shorter system) plus performance mufflers from the factory. The same set up with full length tail pipes exiting at the rear bumper would not have as deep a tone. Another example. Take a 270 Offy engine like they ran in the Indy Roadsters. I have never heard a deeper more mellow tone on any other engine at any rpm. 270 cubic inches out of four cylinders. These were not push rod engines. Later the 270s started finding their way into a few street rods. Change cams, intake systems and exhaust system for street use. Much more sedate but still rattled the windows in the houses when it drove down the street. Still had that unmistakable Offenhauser sound from 270 cubic inches. The 110 Offys that ran in the midgets had the same deep tone but were not as loud as the 270s.


:party: :party:

[Captain Steve]

I think you guys aren't argueing about the same things. Here's my take on this thread.


The larger displacement engines will have a deeper sound.

Modifying the exhaust system can change the exhaust note, making it deeper.


I think everyone's in agreement here.

I think the point that Billy was making is that, mod the exhaust all you like, the bigger engines with the same exhaust mods will have a deeper note.

Using Billy's firecracker analogy.. if you set off a m-80 in a coffee can, it won't be as deep of a note as if you set off a m-100 in a BIGGER coffee can.

The exhaust argument would be.. if you set off an M-80 in a coffee can, it won't be as deep of a note as if you set it off inside a coffee-can sized bell. The bell resonates differently than the cofee can.

Edit: Also, make sure you're clear when you mean tone(frequency) or volume(loudness). A quiet, deep sound (think of a tuba playing in the distance)... is different from a loud, high-pitched sound (think air-horn right behind you).

[jakdad]

I think you guys aren't argueing about the same things. Here's my take on this thread.


The larger displacement engines will have a deeper sound.

Modifying the exhaust system can change the exhaust note, making it deeper.


I think everyone's in agreement here.

I think the point that Billy was making is that, mod the exhaust all you like, the bigger engines with the same exhaust mods will have a deeper note.

Using Billy's firecracker analogy.. if you set off a m-80 in a coffee can, it won't be as deep of a note as if you set off a m-100 in a BIGGER coffee can.

The exhaust argument would be.. if you set off an M-80 in a coffee can, it won't be as deep of a note as if you set it off inside a coffee-can sized bell. The bell resonates differently than the cofee can.

Edit: Also, make sure you're clear when you mean tone(frequency) or volume(loudness). A quiet, deep sound (think of a tuba playing in the distance)... is different from a loud, high-pitched sound (think air-horn right behind you).
Or, if I set off an artillery simulator, which is smaller than a M- 100, the simulator will have a deeper note than the larger M-100. Go figure.

[jakdad]

And I can't believe this stupid thread has gone another two pages. I'll try to think up another one!!!

;) ;) ;)
:cool4: :cool4: :cool4:

[rumble]

And I can't believe this stupid thread has gone another two pages. I'll try to think up another one!!!

;) ;) ;)
:cool4: :cool4: :cool4:


Yeah, and we never even got to why a Harley has such a deep tone
without 350 CI.

[SergntMac]

Two more posts, and jakdad gets a toaster...

[BillyGman]

Yeah, and we never even got to why a Harley has such a deep tone
without 350 CI.A very interesting point. I believe it's because of the size of the cylinders. A Harley Sportster engine is 1,000 cc's of displacement. But the 1,000 cc Japanese bikes have a much higher pitched sound to the exhaust. reason? because even though they have the same displacement as the Harley Sportser does, their cylinder are much smaller since there are four of them instead of two like the Harley has.

So perhaps it's actully the bigger volume of each cylinder of the bigger V8 engines that causes the deeper sound, rather than the actual total volume of displacement of the entire engine.

[cyclone03]

Yeah, and we never even got to why a Harley has such a deep tone
without 350 CI.

Thats easy,A Big Twin Hardley is 1/4 of a small block Chevy.
3.5 X4.0 with very simular cam and valve specs.

[BillyGman]

[QUOTE=Captain Steve].


I think the point that Billy was making is that, mod the exhaust all you like, the bigger engines with the same exhaust mods will have a deeper note.


THANKYOU!!! ("deeper" meaning having more bass, or lower in pitch).

[BillyGman]

Thats easy,A Big Twin Hardley is 1/4 of a small block Chevy.
3.5 X4.0 with very simular cam and valve specs.
:rolleyes: :rolleyes: :rolleyes: :shake:

.....forget it.....okay MAC, give em the toaster. I give up......

[Joe Walsh]

OK, here is another post for jakdad's record...errr...toaster. One of the deepest, "that's got to be a big cube motor" exhaust sounds I've ever heard was a '65 Shelby GT350 with a 'little 289' and side dump exhausts. That thing absolutely rumbled!!! (DEEP rumble)
What kind of toaster do you get?? :D

[jakdad]

OK, here is another post for jakdad's record...errr...toaster. One of the deepest, "that's got to be a big cube motor" exhaust sounds I've ever heard was a '65 Shelby GT350 with a 'little 289' and side dump exhausts. That thing absolutely rumbled!!! (DEEP rumble)
What kind of toaster do you get?? :D
Joe gets to use the toaster first!!!!

:rock: :rock: :rock:

[jakdad]

Two more posts, and jakdad gets a toaster...
There's a toaster?????

:party: :party: :party: :party:

[cyclone03]

There's a toaster?????

:party: :party: :party: :party:

Lets just toast BillyGman. :duel:

Just kidding Billy.

[rumble]

A very interesting point. I believe it's because of the size of the cylinders. A Harley Sportster engine is 1,000 cc's of displacement. But the 1,000 cc Japanese bikes have a much higher pitched sound to the exhaust. reason? because even though they have the same displacement as the Harley Sportser does, their cylinder are much smaller since there are four of them instead of two like the Harley has.

So perhaps it's actully the bigger volume of each cylinder of the bigger V8 engines that causes the deeper sound, rather than the actual total volume of displacement of the entire engine.

Bingo! You have hit the nail on the head. Case in point, ever hear a V12
Ferrari at WOT? It's like 3 Hondas sitting side by side having a "sonic" drag.
Lots and lots of angry weed eater buzz but no thunder.

[jakdad]

Lets just toast BillyGman. :duel:

Just kidding Billy.
OK, I'm in!!!

[BillyGman]

Lets just toast BillyGman. :duel:



UH HO!!!!

hey, if you guys keep that up, we're gonna have to call this the "Mr. Bill" show........

(Mr. Hand)-- "Here Mr. Bill, why don't your just relax in this nice toaster while I plug it in"

(Mr. Bill)-- Hey wait a minute, it's getting awful hot in here, and here comes Sluggo" Oh NOOOOOOOOOOOO!!!!!! :eek: