NASCAR Boom Tube Exhaust Types Explained: Different Setups = Different Sounds! (REAL Parts)

today we are going to overload your brain with information about boom tubes everybody's heard of boom tubes which is nascar exhaust stock car exhaust whatever you want you think of these big flat things that stick out the side of a car and they sound really cool we're going to tell you why they sound really cool we're going to show you the different applications for them the different types like you see there's different configurations back there and we're going to show you the differences on the insides what they do kind of explain to you what the air is doing why they create the sounds they do just a general overview of everything so whenever you're in the garage with your friends and they start talking about exhaust stuff you can just be like here's why this sounds like that and they'll think you're smart or less dumb depending on who you are we also have all of these numbered because we want your input after knowing what you know about you know theoretically what the air is going to do inside them and how they may sound i'm going to put in some clips of actual race cars and whatnot as we talk about these kind of give you a reference of the time periods in which they were used because some of these aren't legal anymore we're gonna test these on the monte carl see what the differences and sounds are for future videos and we want to know which ones you're most interested in so they're numbered so keep that in mind as we go through the rounds here this one is number one because this is the first one i ever had i bought this thing on ebay in 2014 for that car back when i had a big block and that's why it's got these these extra pipes on here because back before i knew how to work on cars um jeff let's actually put this boom tube on that car for me and it costs a lot of money a lot more than i was prepared for which kind of prompted me to learn how to work on cars myself but that's a whole different story maybe we'll tell that on the the extra channel the stapleton 42x for channel that we just started that's the place for stories like that it'll be pinned in the comments you need to check it out this thing sounded pretty good with the big block was a 502 it idled like a boat because it was boat engine and kind of the biggest point about these boom tube things or any of these configurations is just because you put one of these on your third gen camaro with a waller out 350 doesn't mean it's gonna sound like dale earnhardt's monte carlo when you turn it on it won't do that just the same way that freaking louis armstrong could play a trumpet and then hand it to me and it would sound like hammered dog you have to have a good engine going into one of these to get the right sounds out of them and that includes the headers and compression horsepower the amount of air that's going through them that all comes into play with how these things sound and they're all designed to do something different so you mean you can't put them on an accord and make it sound cool no you can't do that either like whenever this one was on the big block it sounded good sometimes yeah it did if you go back and like listen to video don't you have old videos with that in there yeah i'll show them in here there's one that's on a different account that has like a couple hundred thousand views you've probably seen it before it's that car before it looked the way it did [Music] and it has a date welding on here um 524.05 so they don't use these big fat long ones like the skinny ones anymore the current cup cars don't even have those i think they just have pipes that come right out of the headers and stick out the rockers because the next gen cars are you would have found these wide skinny ones from the early mid 90s probably mid 90s up until the end of the gen 4 cars which was 2007 when they brought in the car tomorrow but you can notice the difference between these two you can see the difference in the path the air is taking out of the engine so you have your each bank of your engines coming through here and they converge in the boom tube that's where the pulses meet each other but on this side they converge right here and they're kind of going through the boom tube already unified so to speak so my sound prediction between number one and two this will sound much better this will sound smoother that will sound more aggressive like a you know clumpy hot rod sound you get more i think you'll get more pops and bangs and bubbles out of these ones than those ones so when you're trying to imagine the sound path coming through these things think about it like cars merging onto a highway you got every cylinders firing and they're each producing a a pulse of you know the explosion from that individual cylinders going through the header and they're all meeting up and why you get that that signature v8 you know popping ripping noise the typical cross plane domestic v8 ripping sound whatever you want to call it it's like you know it cracks it's got it's not smooth that is because you have exhaust pulses banging into each other the whole way through the tailpipes and when they exit out of the atmosphere they are disorganized they're colliding they're bouncing off each other and it just makes a big old racket you know exactly what i'm talking about if you hear some freaking pickup truck that has what they call true dual exhaust and it just sounds real slappy and awful that's because there is no harmonic balance of pulse pressure between the cylinder banks and that's where this one number four comes into play yes you can see that it comes out both sides of the car where all these ones just stick out one side on here you have your pulses coming through and there's a little bit of an equalization of pressure between the two but not a ton over here in this section the x-pipe section they are being forced to bleed pressure off to each side these ones were used on super speedways mostly in the early in the 90s some people use them other places but they're pretty much for restricted plate usage um up again up until 2007. this one came from a morgan mcclure super speedway car from 2001 and two that's why we chose number four for it this is the real deal actually unrelated this is the same exact thing but brand new so you can see kind of what they look like before they're made but if you want to know how an x-pipe works there's a whole different video on the channel i'll link it right here that explains the x-pipe better if you think about cars merging on an on-ramp whenever two ramps come together and there's a lot of space between the cars and they just kind of flow together like a zipper that's kind of what the x-pipe is doing or trying to do with these exhaust pulses that's why those cars have that real high-pitched whale as opposed to cars with a single exit h-pipe style or even that one is just different we think those are so cool that we went and made a shirt just for them check it out who doesn't want to make cool noises we just want to make cool noises that was actually something that i think i said in the video we were making the exhaust is on there now and someone said that's a good quote to put on a shirt and i was like right so we did it and that's actually this exhaust is on this shirt the morgan mcclure exhaust yes i took a picture of it and sent it to the graphic design guy and he made it jacob did a good job yes he did now these ones are newer because they don't even use these the flat boom tube anymore to me the definition of boom tube would be these any of these with the wide flat exits but people still call these boom tubes and i don't really know most of these came from an auction i believe that one's probably from uh you know i'm not even sure i think this one's from a truck from the truck series because the the cylinder spacing is wider but they have x's integrated into them i really don't know what that would sound like i do know that those do not sound like that but they also don't sound like that not sure it looks cool though it almost looks more old school but they still have baths you can see this one just the whole way down there's baffles in there with this circles cut out to kind of smooth out the airflow some of them have baffles in them that are shaped like triangles like little nacka ducks almost i don't know what the difference in the airflow alteration is between the circles and the triangles but some of them don't even have any division in the walls at all these ones don't you can see in the unfinished one here those are completely solid there's no duct work in between those walls those are three chambers that are completely separated from each other these pieces in here they do have some little triangles in there so they have like you know it comes out of here it gets flattened out smoothed out whatever it is by this piece and then it's just standalone and it does make a difference what it is the pipe diameter the angle of the x all that changes the way the sound passes through the amount of material taken out to like the actual opening inside the tube changes how much pressure can bleed through from each side it's all a big science and there's a lot of places that a lot of r d to figure this out like this little one here this is three inch instead of three and a half like everything else don't really know why it just had this written on a three inch 60 degree which i would assume to be the angle because they probably tested you know 50 60 70 80 different pipe sizes dyno test everything because it's got these bands welded on there it's where you could clamp a bigger piece over it and run it but i don't know if this piece had ever been run i had ems 35 on it i thought huh maybe that means evernote motorsports so i asked gray what it was for and he said it was for gl uh ground clearance at super speedways just for restrictor plate engines and then i asked him if the three inch pipe made the same amount of power on a plate engine as the three and a half and he left me on red it's okay right you can keep your secrets these ones also are from ems don't know it says unit but the little piece leading into them does just like the floor one these ones are probably the most recent super speedway style exits you can see like on kevin harvick's car when he won the daytona 500 by like two inches against mark martin they had that weird angled front side on them almost like almost like they were making these more aerodynamic instead of having the flat rectangle they evolved into to this that's on the leading edge but there's not very much flat area out of here so i don't know which one you think would sound cooler i really don't know it kind of jumps all over the place there's no script for this it's all just impromptu whatever comes to mind we'll go through and show you in detail every single one of these by the number so you can write down what your favorites are what you want to test i think we'll make a poll on the community tab page of the channel with all the numbers that you can go vote on i think that's the best way to do that because if i just say comment what's your favorite is let's be honest we're not going to count them we'll just it'll just kind of be like well they'll never stop accumulating so yeah there's no point in that yeah so just for you people you real g's that are here early off the bat you go vote in the poll after the fact you might as well comment in any way because you never know hopefully people will be watching this video for years um lead comments and people are like oh i'm late but this video is really interesting even the video is like three months old and you're just thinking man you're not late these videos are meant to be watched forever so go back and watch the old stuff if you haven't already on the racing history nerd zone playlist that's probably going to be your thing if you're watching this video but you probably like the other stuff too you should check it out let's get better angle one two three four zx pipe five and six i think these are gonna be interesting because they're like not a solid pipe yeah two separate things so it's like it's not max pipe but it's also two separate pipes it does have baffles yeah so the the banks the only the only inner merging that the cylinder banks can do is in the integrated x because once they come back out then they're separated again whereas in these all the everything can converge and shift and do what it needs to do in the big flat boom tube so you're right that would be interesting so here's number one the og it's got a really big h-pipe oh you know yes please up it's got triangle ducts inside here's number two also has triangle ducts on the inside but it looks a little skinnier i don't know for sure but i've been told that the thinner it is the more higher pitch the sound is that'll be something that we can test also the pipe in between is also thinner it's like skinnier yeah so it would allow less air to bleed through i'm interested to hear what this one sounds like because i don't know [Music] okay we can save it for that also got triangles in here it's thin number four this is my favorite this is this is the coolest one this is like the holy grail right here because if you don't know that sterling marlin and the morgan mcclure number four kodak car were the first people to ever use an x-pipe like this and that's kind of like you know what it's known for so it's really awesome to not only have one of these things but have one that was from morgan mcclure in the prime time of that sound because that is that like like this is an artifact this is this is a legitimate artifact this exhaust won the talladega arca race and it was a cup car before that so this has cup history we don't know what it did though i have a theory we'll save that for later later in the video oh and it is worth noting that these pipes in here are passed through i don't know why i talked to the guy that worked for morgan mcclure who built this and he said it was just a brace and they stopped doing it because these wells are cracking okay there's no way that it was just abrasive air is coming through there yeah if it's just a brace then why are these drilled out in here so air can go through i would theorize that this is almost like an h-pipe for the x-pipe so it bleeds off or equalizes a little bit of pressure on both sides of the x to let the x do its job more efficiently i don't know i'm not a physicist i'm just somebody who thinks about air going through a pipe and what we're going to do because that one is so sacred is we're going to recreate it everything about it spot for spot thanks to voice industries slash aed i didn't know that's okay i don't know if you can actually buy these i think they found them buried in the warehouse because i gave them the part number that was on there so those are like legitimate real deal new old stock this is what they would have looked like whenever you know whoever morgan mcclure rcr dei if they bought these and built them they come like this and then make them like that they did come like that then morgan mcclure did not use the supplied um transition piece they made their own all these oval bends you can get from boyce 2. they got part numbers stamped right on them the same part numbers actually that are stamped on the pieces from 2001 are still active and being produced today so all this stuff you can still get so if you find anything find a boom tube or you just want to make the whatever you want out of ovals boyce has you covered oh if you're wondering what this big block is for it is for that suburban we're gonna do a sound experiment with this thing and that 632 it's a 10.35 liter big block conventional firing order same as a you know the small block cop cars would have been in the 90s we're going to make as close to equal length primary headers for it as possible and we got profab to make some try uh collectors and it's going to have the x pipe and the side x's and stuff see if we can get a big block like this to howl like the restricted play cards did back then maybe you know it's not going to sound just like that because it's a much bigger engine but um it won't sound like papi's bracket car and number five probably this truck series exhaust i'm really not impressed with the way that the truck series trucks sound these days with the crate ls engines they just sound like i don't know my car and it doesn't sound like a race car oh i really don't know theoretically if we put this on that car it would probably sound just like a current truck series truck it's the same engine but i think this one's neat just because it kind of has that old-school look i don't really know i don't really know what the sound difference would be between this one and that one because the the pipe wall thickness and everything's and i have different resonant frequencies i i don't know which one is your favorite i think the first one we're going to try testing this x on that car because the stuff that's on it now doesn't sound right it's whatever the like the uh kit dr gas boom tube is available for retail it doesn't sound like the super speedway car stuff so we're gonna mess with it see if we can iron that out they look cool if you can't find them anywhere else you can get them when they look like that they're not really constructed the same way they're painted up too yeah you paint them like or matte black barbecue grill paint maybe we'll test some of these out too these are like the raw pieces of what one of those have been made out of with the circles in them it's the bear sticks and this one's got triangles and it's thicker and it's not finished welded so you have to weld all those little holes to get this baffle to be completely secure this is really so much time and energy and effort goes into all these things this is crazy to think about how many like to sit there and tig well all of this would take a very long time it is possible that this came that this came from robbie gordon's car in the 2001 daytona 500. you know the one that uh tony stewart flipped and landed on his roof [Music] because i know what car what arca car this came off of i have pictures of it and this the stampings in the a-pillar look exactly the same on that car as they do in the pictures of robbie's car in that race but they do not match his 21 25 car or the um the buzz shootout car one of the other ones use a different car for that whole aren't the same size don't have any chassis number information but the time periods match up they didn't have that many chassis from the guys that i talked through there if they wrecked one they would fix it and this particular car had a different i had a laughlin front clip when the rest of the chassis was uh gary d hart tkp so i thought hmm that might be it let's look at the forensic evidence on this thing and see that this was the bottom okay so this was the driver's side of the exhaust it's got scrapes on it pretty bad so bad that they had to weld it and patch it and it's got a scrape over here too real bad [Applause] but it also has a little scrape right here on the top oh my theory is that in the cup race this exhaust was damaged so they welded it back together flipped it over sent the car back out for arc of duty just to get further mileage out of their equipment so oh it's also you can see it was cracked right here so this is the front of the car that's your driver's side tony stewart lands on the roof probably bottoms the car out i don't know about you but uh i could definitely do that it's very possible that's what that came from we won't ever know because morgan mcclure destroyed their records either way it's a piece from the era it's really cool to me definitely not a brace so that's coming that's full force air coming right out of the header going around the x through that tube that's like a wastegate in a turbo car you know what wastegates do bleed pressure and you know what also happens if you dump a wastegate back into your downpipe it helps pull it out so maybe what they were doing with this is what is that like burgooli's principle or something where you have like intersecting paths and it helps you know create some vacuum somewhere i don't know i was thinking of the time that i learned what a wastegate did and i was like mad that we were using it like why would you want a wastegate so you'd make less boost with one of those that's crap get that thing out of there do you think i should show them what the tri-y headers are they're back there yeah those ones oh i'll go get them okay you're wondering what this contraption is this is a try y header collector that pretty much i'd say almost every cup car used back in the day i don't know what they do now they most of them still are where your typical you know hot rod header this has all four tubes they clam into a cone and then they're just all they just all jumble together that's it but what these ones do is they group the cylinders together by their opposing cylinder in the firing order so that if this one's got a pulse coming through and it's down here this one's got a pulse coming through and it's up here so when they meet they fall in line you see that wow they fall in line and then the other side [Music] these two cylinders are doing the same thing and then these are the most two opposed cylinders collected here so that they fall in line there oh it comes out smoother helps uh reduce the back pressure these steps are there to i don't know they reduce reversion or something i don't know there's a whole lot of math and theory and physics and all kinds of stuff i don't quite understand so i just use the whole on-ramp way of thinking about it and maybe that's why our x-pipe on the money girl it doesn't sound right because it has conventional header collectors on it or the primaries are two unequal lengths so the sound waves are already colliding with each other too much before they get to the x-pipe so the x cannot untangle all of that if you have everything well organized and as well put into line as you can before the x the x can be do that much better and the sound that comes out almost sounds like it's got 180 degree headers because with a flat crank a flat plane engine your firing order is much more linear like that it's smoother that's why the pitch is higher or you hear like a gt40 in the hole in moody video we did which you should go watch it sounds a lot higher pitched than a regular slide oiler 427 does because those headers are placing the pulses in the appropriate line at which they happen in the firing sequence of the engine is that too much to handle i don't well know doesn't like work the same for like everybody because like the firing orders are different exactly that's a very good point so if you group these particular cylinders together if you were to change the firing order on the engine these headers would not work to their intended purpose anymore because you would have two cylinders that are firing at the same time running into each other right here it wouldn't work when you do these headers you have to pair the appropriate cylinders together in the primary collectors so that when they reach the secondaries they come together as smooth as possible this is a very good observation you're welcome i am smart yes you are people don't give you enough credit you can find the cool noises boom tube shirt and all these other ones at stapletonautoworks.com with the hat the hat i'm wearing is also on there too take this one off we don't have any of these oh yeah all right actually technically we have one if you want to sell it we have one just that one not for sale wait you said it's not for sale no it's not for sale i want it you want it for real i don't know maybe we're gonna get more of those so just hang tight if you want one they'll be coming soon if you've never been here before you should subscribe because if you're still watching this this stuff must have interested you enough to not go do something else so you're probably gonna like it here if you have any bobby allison budmore shirts we need those because the one i wanted that found on ebay was like eight hundred dollars and i'm not paying eight hundred dollars for a t-shirt so if somebody has one cheaper that'd be cool yeah also we have an address for fan mail now you can find that in the description of the video so if you got like cool old you know winston cup banners or anything like that you think might be useful to us you can mail it there and we'll hang it up probably if it's cool there's a lot of stuff that i need to like deal with and hang up that i haven't gotten around to because there's so many other things that i have to do so don't promise things yeah they'll get hung up eventually they won't be hung up as soon as they get here but eventually they will oh and if you're wondering about this fender this is a fender from buckshot jones car in the 98 uh brickyard 400. pretty neat joey the guy from that owns us the vola brothers building gave us that he's a cool dude i mean really if we haven't earned your subscription by now tell us somebody else who has like 400 pounds of 20 year old nascar cup car exhaust system scattered across their shop floor making a video about it you you tell us who that is okay and you go subscribe to them instead because we're not cool enough okay i didn't think you found anybody to see better i think it's funny because some people will get butt hurt about that people get butt hurt about anything that there possibly is to get butt hurt about yeah it's when i couldn't sleep last night i was like going through old comments i'm like videos from like few weeks ago and stuff it was like damn some people are just really rude what happened if you don't have anything nice to say then don't say anything yeah i don't know you guys have no idea what we deal with but if you'd like to have some idea what we deal with go check out the stapleton 42 extra channel and we'll talk about it over there because that's what that channel is for like the you know more of the get to know you guys hoping you guys get to know us better that kind of stuff you're gonna like it and we finally got the aero wheels on the monte carlo sneak peek oh you already showed it okay we won't show you then you got to go over there to see that so go check out that so check that channel out we'll see you there and i'll link the poll too i mean you can show it but i was just saying that i already did it oh well no i'll save it if they want to see it they can see it they can see it over there because if we put it all here then there's no point to having a second one right i think that you should just go ahead and show it because okay we'll show it oh god it's so awesome no the letters are not blue that's just a protective layer that comes on there oh it's so cool looking i wish we had those on there when we took the pictures at north brooksboro but um we'll be back it's okay we've rearranged everything in here when i say video yeah so there's a video about that too which is um recorded and directed by logan i don't think i was even here you weren't here and that's why it was so bad i literally refilmed it like the first time i filmed it i was like wow that was awful i i really suck at this and then i redid it and i told mitchell like it's gonna be funny when he watches it yeah i haven't watched it yet but you'll see that over there too and i left the camera on for like 20 minutes on my desk just like going at i forgot to turn it off she does that sometimes numerous times i clicked the button and it didn't turn off yeah something you got to like click it hard it seems temperamental sometimes

Channel: Stapleton42

Views: 694,263

Keywords: lsxcalade, escalade, turbo, twin turbo, pfi speed, hondaru, stapleton42, Mitchell stapleton, 427, lsx, dyno, 2000 hp, street outlaws, bald eagles, 4x4, rowdessy, big turbo, suburban, yukon, denali, 1320video, dale jr, do it for dale, Brent pfi, 2.0, rmrw, drag week, boost, v8, ls1, esv, boom tube, daytona, Alex bowman, suck it, dale truck, monte carlo, first gen monte, ls swap, pro touring, lsa supercharged, iroc x pipe, dr gas, rippin, vice grip garage, vgg, amc dealership, junkyard, dirty mo

Id: Q6wXpOQVdN0

Length: 34min 43sec (2083 seconds)

Published: Sun May 29 2022