I made my own Driveshaft for a 1400 HP car. Safety loops in case it explodes too.

so we got a couple threads on there i'll probably even put thread locker i think i bought you something yeah you did you don't use it it's brand new we've got just the perfect amount of we're doubling down we learned our lesson yes lesson learned so there is the first iteration of the drive shaft blue it's like a christmas wreath at this point i've locked this side of the tube in we've got this roller and this roller and i'm just going to do this by hand just to see what happens what is nice you can actually just plug it in to the air compressor but my air pressure is so loud it ruins the moment [Music] degrees [Music] that was not exactly how i want to do it i love my guard on my angle grinder but i don't have the key for it i cut it off a little bit past the curve so that way it's just the slightest bit it's like not 180 it's 179 which is still fine because when we go to cut it to make it a full loop it'll wash out in the in the cut itself but we got a little baby candy cane and we're going to make three more of these and then make two really thick drive shaft loops [Music] you set these two five inches apart that's the answer i want to show you guys this is the old drive shaft and this was two and a half and we went to three the guys have it right now but it's not the drive shaft that i'm worried about it's these getting in and out so you can see that's a perfect amount of space because once it's all said and done that'll end up being around the drive shaft itself so that way if it breaks and most is going to do that and then spin like that that's a wonderful setup the one that ceno did was much larger but that that was just good chassis design not necessarily specifically for this all my goals are met we might not even make these removable these might actually just weld into the chassis and then we just have to slip this in that's within six inches or so of the the front here you guys know i love building and i love just staying in the shop and wrenching but what is the number one request everybody in the world has for me is to get out there go out that door and turn on the cars and go racing i'm a i'm a homebody i'm a garage body and you know what makes it possible for me to get past that massive garage door and get the cars out there and making adventures happen simply safe simply safe has been wonderful for protecting all the different things i worry about with this shop even something as specific as making sure the temperature is the right not too hot not too cold that it's not flooding here not that that's a major concern no fire no people trying to break in because i have a lamborghini that people want to steal the security cameras so i can watch these goofballs doing whatever there's a lot of different things that simply save covers it's a very comprehensive security system and it is very easy to use if you're interested in learning more about the simplisafe system go to simplysafe.comrobdom to learn more that's simplysafe.comrobdom one of the first things i wanted to have done is make sure that these things were beveled because it's such a thick amount of tube and so jason took care of that for me so when i go to put a weld in there i think in your mind in my mind still i think that everything is molten it's just all melted but it's it's actually only a certain area uh the key word is penetration and so i want to penetrate deeper than i ever have before and that requires us to take some material out to then get all the way to the root of the problem and then fill that in from there especially this is 120 wall i have the machine set to 135 might go a little higher just to get these tacks in there wish me luck [Music] weld went really well except for the fact that the hot air was escaping out of here and blowing away the argon even though the cup was directly over this so i could probably increase my cup because it's a bigger cup uh increase its flow but i'm pretty happy with this first run [Music] actually turned out decent i just gotta repeat that [Music] it's it's getting hot now so it's you know turning darker quicker but i'm pretty happy with where that's going well we now have two driveshaft loops and i'm not gonna be a magician and stick them together cut that's loud but we now have two ways of containing drive shaft failures front and rear we're gonna go ahead just kind of clean these off a little bit and our next step is going to be making some sort of pieces to mount this to the chassis so there is the first iteration of the drive shaft blue it's like a christmas wreath at this point it's actually really working out well let's just zip tie all this together i'm gonna have to move the loop i messed up on my thought process but we don't have this u-joint because i destroyed it that's the ticket i need you well the driveshaft loops actually sit pretty low oh that sits really low that's the center right there god i kind of like that the rest of the driveshaft's long enough for us to figure it out you know like get it out of the car the current magic trick is that it looks actually pretty damn good right there the for those of you guys wondering the engine is offset to make up for the drive train on that side so the engine is actually closer to me in the vehicle but the rear diff is square in the center so what happens is this is actually off to the side and then the drive shaft does go on the slightest angle so you can see from here to here you know it looks like that something's on wrong it's actually completely right that's the spot so we're going to make little one-inch tubes that go from here down there to the side there to the side and then a weld on the bottom of it what's neat is look at it if you were to let go here so any of these parts were to break off it's going to hit the carbon and the carbon is obviously very strong it can hit chunks of steel but in this case it's just going to spin around in there i wish i'd done it sooner thanks to my huge friends you thanks my huge friends leave that they're not big friends a huge thanks to my friends who are like my guardian angels they've watched over me breaking my drive shafts in ways that have nothing to do with the drive shaft so we've got this one back in and we also made it slightly shorter because of my poor measurement skills this one was about an inch too long and so it was actually binding up the rear drive shaft and i think when the chassis flexed that little bit extra under all that power it also kinked up the drive line so a lot of things going on at once but we've got the new one in so we've got rear wheel drive right now joel's going to hook this 1350 u-joint into the back backside and then that leaves this side for us to put that infamous driveshaft loop onto here i'd just gone to an infiniti dealership recently and it makes no sense whatsoever but infinity is owned by nissan nissan makes the gtr and as a result they make the seal for the transfer case but what's funny is this part number shows up like on ebay randomly but it actually shows up on infiniti's site for a lot of their crossovers they end up using a lot of the same parts for like the fx35 infiniti for the the transfer case for the old gtrs so if you need parts for an old gtr transfer case if not all of the parts it's almost identical you can look at the infinity crossover suvs so this part in particular is actually the seal the front of this transfer case which must have taken some damage during the explosion take the old one off [Music] baby kitty back in well i'm gonna push that further but look at that all the way on so much nicer this one was dripping like crazy and it was only after the accident which of course put some torque on it and it tore chunks off of this i think we have a brand new transfer case seal now my least favorite liquid is one of the most useful liquids ever so this is one of the pieces that are the most unique to the entire build and that's the transfer case out to the front of my drive shaft and then basically something more common in this case is a 1350 yoke right there or a 1350 u-joint but of course it's a spline piece here so got that on there and then this will go back on this one actually i think it's kind of one of those pinch nuts pinch nuts are bad to have you can see right at the top it pinches it it is a lock washer that's definitely not coming apart any more time soon let's do one last for a good look yep that's stuck we are back in business with the beginning of the front drive shaft so i promised myself that i am not going to use this in the car i swear to myself i am not going to this i got driveshaft loops i'm allowed to use this in the car i got the correct drive shaft steel for the section of carbon that won't be in in time for the front drive shaft i want to get the car back together fully and i i'm just i'm just gonna size it up i'm not gonna weld it i'm not gonna put it in the car i'm not gonna run it i might do all of that but this is the beginning of a front drive shaft out of steel and oh my god is it so much heavier than the carbon fiber equivalent of course it works but uh i'm going to take off the edges a little bit we're going to press in the two ends i got spares of and weld it set it off to be balanced and uh run it as a backup basically i need the car in all wheel drive mode [Music] so with this tube now prepped you can see it's actually the correct diameter and inner diameter for the piece that i have here what you're going to see me do is obviously prep both surfaces and then just simply press it in the bearing press well i use it only for bearings and then weld the two together i won't do any of the balancing i don't have any equipment to do that but at least i'll have this prepped ready to go and uh something just something to have all-wheel drive this isn't supposed to be insanely press fit it's just for centering the whole thing this is meant for this exact tube anybody watching this take it to a drive shaft shop in this specific case this is a three inch outer diameter od if you see that and then it has a 0.083 thickness so you don't even say the id when it's tube like this you always talk about the outer diameter and then how thick it is but there really is an inner diameter and this piece is meant only for this thickness of two you can almost press it in by hand but not exactly that's a job well done and i have this lip squared so we also know that we're making as much contact between these two evenly that took a little bit of work so the best part about having this ring squared to the tube is that even if it's slightly off it squares itself up nice and clean and we have a nice clean mated surface right there that's basically the most professional thing i've ever done in my life it's all clean fresh metal both surfaces completely cleaned up we'll hit this outer one with acetone one last time and we have half of a drive shaft so this is the other half of the equation it doesn't really matter which way we rotate it because this is 29 spline piece to this side we'll clean up this edge same way and i'm going to press it with this bearing on because i had to make sure all the bearing pieces back up one's worked but we'll press it from here and hold it here and here so it'll continue to strengthen this one and seat this all the way so i'm assuming that yellowness was like a zinc i doubt it was zinc but like a zinc coating and we don't need anything in our nice and clean weld that is now clean enough wipe it off with acetone press this on running that gonna move the whole thing over just a little bit this is a harbor freight setup so uh this whole thing bends when you when it's still under pressure i don't even know where center is anymore on this thing here goes the beginning of the last step so we're going to go ahead and heat this up a little bit just to make pressing this side in easier i wanted to start with this side but we were still taking it out of the car it actually won't hurt the whole process because we have to preheat it anyway we really want a good weld steel does not do a good job at transfer heat it's already wanted to go down um get ready to drop it down in you know the bearings getting pushed out at the same time we are getting some good motion on this so that heat was perfect for exactly what we're doing all right let's see what we've got there we are there is an actual drive shaft it's a little warm but steel sucks at transmitting heat so you can hold it from here that is clean up those edges and and weld time and then after that we can send it off back to the shop to get uh balanced i mean there's nothing asymmetrical about it but that's just the nature of the real world nothing's in balance but that is nuts all the footage you've seen up to this moment was using a piece that was an inch and a half too short like always as it is here from uh moral support and supervising yeah i try and put it all in and it come up short every time so same process we're now on number two but oh my god did it turn out perfect already if i didn't go to weld these otherwise would have wasted these pushed it all together and put it in the car and the bearing was on the wrong side so we're gonna go ahead and push these in and you guys get to watch this done again and almost dare i say prop properly we're going to add heat because that made easy to put on and take off there she goes it's going to break the wood we're the first version of this was me not using the lift to accomplish this most basic task look at that that's that's right there i'll show you how to balance the drive shaft it's balanced see nice nice yeah spin it oh my world is super hot in one spot that way it's unbalanced and you have to get a balance yeah no you do this like uh spin the bottle you you spin it really fast like this in whichever way it falls yep see it wants to come towards me it means it's balanced if it goes towards its owner it's balanced i heard that quote one time but she never came back so this is redemption of course the guys that make the carbon fiber drive shafts did an amazing job making this just absolutely perfect again for me to ruin but one of the very interesting things is this flange isn't the right flange for this i spent about three hours last night on the mill milling these 12 millimeter bolt holes out absolutely look at the precision on that nice yeah and the reason why is we were using m10s before and this piece from the gtr is a 12. so there was a little bit of slop which i think added to the ability for the bolts to loosen but for the nuts to loosen but look at that though those are exactly 3.75 inches without you see it doesn't even turn without it even being tightened so i'm very proud of this we've got extra material all the way around here on all this it's not going anywhere we made more power off of one that had way less material on here the only thing that i would say is a concern is the fact that the original holes show up right there but that again there's so much material yeah the weight loss right there but they're all holding in they have no reason to go out there it's this is wonderful so we've got that and chris went and picked up the right length the bolt locking flange uh nylocks wow yeah it's a spare no expense they were yeah they weren't cheap so we got a couple threads on there i'll probably even put thread locker i think i bought you something yeah you did you don't use it it's brand new we've got just the perfect amount of we're doubling down we learned our lesson yes lesson learned here's the front as you just saw and yes i will take it to get balanced but we've got these beautiful weld positions ready to be done and it's time for me to sh as the apprentice to show the master what i've learned and to see if i can weld this so i'm going to do one and then he's of course going to actually do the right one the proper one i'm gonna do one half and the other half and i'm gonna do the other half okay okay yeah good but that was when it gets balanced we can see which one was better isaiah made this clear to me years ago and every day i realized more and more how true it is it's mostly prep work the welding itself is very easy but look at that yeah but not a brick and fabricate that's that's my honest opinion hi i'm rob dom and i'm going to pretend like i know what i'm doing i'm all nervous now that isaiah's here this is awkward no don't be okay and then you just press the pedal survive yeah that easy you got a grasshopper yeah you need a rock though turn the camera off through the gearbox let me show you guys how this is done [Music] [Music] rotors make so much torque yeah that really really needs some good penetration in there okay just like let it sit in and just let it put a vibe in there you know okay normally it doesn't last long when it's in there don't be afraid to let it get hot okay [Music] as i'm changing i have to you know adjust that's that's the hardest part yeah it took me forever to learn just tough yeah see i have to do really short strokes comfortable i know very well i'm getting better but i have to consciously pull myself back just barely enough rod nice yeah yeah i feel enabled now look at that that that was nice and methodical i felt exactly what it was trying to tell me while i was doing it a little bit of heat difference from start to finish what a lot of people do they end up just changing averages and i hate doing that so i just like let it sink in with the sink and let it sink in and once it's you know up to heat then i told you that confidence i'll explain to you guys this so i was like i was like wow you know this thing's operating off of batteries it's got a control panel and everything i'm like oh it's like a digital calculator it's got a little solar panel i'm like i haven't put it out and i heard to say this i'm like man it's been it's a little baggy it's not out in the sun or it's not getting light from this then my helmet's going to die at some day and and i'm going to be like blinded i'm like i don't know where it's going to get any light from about not realizing that welding produces some of the most insane amount of uv and normal light possible that's charging while it's working and it gets brought up we're adults we grow we get past that but it's charged right okay you just fully charged [Music] uh that's beautiful welding is bad on purpose oh i think you know just the drive kit this is what i love about this car everything looks too pretty to be on it you hear that i don't know why the i'm working on the bottom [Laughter] this head would melt way easier than that side so i have to like literally point them at that material and then it'll just melt together yeah like at an angle it's weird yeah so i haven't been the best youtuber lately because honestly all i think about right now is not dying in an experimental car and that proceeds or supersedes or oversees seeds the fact of making good videos i apologize for that and this would be one of the greatest times to be vlogging exactly what's going on we have got both the rear and the front driveshaft pieces all countered for the front one wasn't going to be carbon in time and so i made that steel one and uh i don't like to do things that seem reckless but that doesn't seem too reckless it's very clean the welds turned out perfect and uh the rear one is going in and like i said the guys at amalga the guys that helped with all the carbon did a wonderful job on that again and i'm gonna go ahead and put in the rear drive shaft the guys are getting everything for the front one all figured out i had to bend the plate that got bent up uh and it's 321 but it bent right back i think we'll have all driveshafts counter four but oh my god look at that car me when i see a ls swap rx7 you might see it a rotary rx-7 nice catch just landed on my shoulder okay this is good this is much better than the the measurements i had made before this wouldn't push in like that and the guys the drive shaft guys said that that contributed to the failure because oh wow yeah when the chassis flexes and god knows how much this thing's flexing when we before we get any further this is very promising because that previously this would not have been long enough to do this there we are so it is a very tight fit as you're seeing and that's perfectly okay by me prevents things from falling out and got weird moments so to show you we originally had those uh crush washers or we're gonna call it you know half loop washers on these pieces right here so if you come from this angle you can see these are the ones that will cause us trouble so not only are we using nylocks but we're also going to be using thread locker on the threads themselves put some blue on here this is reasonably as serious as you can get then we'll do the same thing with these down there i want to lock this side in before we uh flip it to the other side those you guys watching from home the one thing i did not choose to do i chose not to do more specifically is use castle uh nuts and that there's mixed reviews and i think the mixed reviews are just personal preference of different people have been telling me you know the one downside of having tons of experts on a team is that they all have different opinions and they're all right and i don't mean that like egotistically i just mean that there's a lot of different approaches a lot of you guys in the audiences uh have been talking about those nord block washers and i will certainly be buying those for the next phase but this is twice as good as what we had we had just those simple locker uh washers you guys know that if i just stuck with nylon or thread locker would be we wouldn't have had that situation happen we are doing a pretty decent job i think now we're aware too so yeah that's other things yeah maintenance awareness and we also got longer bolts specifically for those over there that can actually hold the entire length of a lock washer this is by far the most effort i've put into uh locking washers i do have the metal ones on the engine uh mounts the engine mounts are all locking so here's the other set of nylocks for the front side of the drive shaft still in the rear of the car but we'll go ahead and do that these bolts are still twelve nines but i bored them out for uh the exact size so there's no slop in the drivetrain that's completely loose that's as much slop as we have i spent three hours on that middle that night i didn't film it i was just in that i want to get this done but you know what else is nice is these bolts can't back out under speed because they'll hit right here and they're long enough so this thread this is horrible third worst case this thread would still be holding between these two the bolt head would be here and we would still not shear the bolts so yeah that was an accident that was a bonus what oh it's a baby kitty we're thinking that uh keith has tape worms or something because he eats everything and hasn't gained much weight you sound like a little engine idling the baby look at the camera [Music] and now it's front drive shaft time this one's gonna be a little bit more resistant because the angles this piece even though it's bent back it's still a little hesitant same thing on the front and this is where the front fell apart we're covering all the various bolts and nuts that were sitting on the ground at the end of that first launch here's this one you need the nice part about these nylons is that they hold enough resistance so that way you can ratchet without a problem that's a pain in the ass when you can't get the ratchet to come back in my life pour one out for that that comment that hurts so this is a wonderful moment we have both drive shaft loops over the drive shafts we'll tack those in and weld them in at this point it's gonna be permanent uh we'll have to cut them out we're going to go ahead and get the rest of everything built up but every single piece of linkage from beginning to end is all nylocked and loctited and stronger than ever before so we're in really good shape so the guys are just doing some fine tuning for the part that bent a little bit but check this out [Music] here is the pinnacle moment of all of this is that yeah we've gotten back to where we were and we've got better ways of preventing from what happened happening ever again but this is the secret sauce these are the driveshaft loops in their correct spot i'm going to weld this one in i actually am going to make it a permanent part we would have to disassemble the drive train to get that back out but for the moment it doesn't matter i want this welded in up here we'll put something in the sides and then of course connecting it down here and what is wonderful is that if this flange were to break off the cast iron is going to be the weakest most risky part of my drivetrain if that were to shear this carbon can handle it it would just spin inside of that ring you can see it's about as clear the clearest shot you can get of that and it won't damage anything else on the car so that's wonderful it'll just kind of spin around in a loop and life will just go into neutral and that's all jokes aside that's a wonderful thing to [Music] have [Music] kind of cool baby candy come here come here you just you son of a did you see him he went like he he stomped them why did you do your testicle shake on my cars there you only get pet when you have food he's getting better usually he'd freak out when he sees me walking up yeah i purposely like i gave him too many treats right now but i purposely would give him like two treats and then make him let me pet his head and then he like got more and more used to it i'm giving you treats for marking my diabolo that's kind of messed up so you see these hang on you get these but you get the pads first oh you kind of like they okay here you go there you go okay there you go okay you get this hang on hang on okay there you go see he's getting better that is epic for at least getting that started if you go further it's just going to be carrying tons more material into that cut but let's test it it's pretty spot on now we gotta do the other side we're gonna be a little bit harder [Music] for my friends back home in michigan this looks more like a snow plow than anything and it might actually work as like a snow plow but this is actually meant for the 200 mile an hour wind that's going in from the wheel well from the front it is going to go out this way but there's the fender a little bit of fender right here but it'll be well andrew did a phenomenal job bending this and we were going to go up higher but it just started looking like a rubik's cube it was just dumb we're going to use my least favorite thing in the whole wide world desaus zeus fasteners i actually love them but i just don't want them visible somewhere all four places on this piece that looks really good [Music] i don't know how i did that i'm putting in a semi-permanent driveshaft loop and i made it slightly too long but i like that because i want this in there permanently so i almost don't even need to weld it [Music] [Music] okay guys we are not only back to where we were which it was already wonderful progress but we're far beyond it the front of the body is on drive shaft loops are welded in the drive shafts themselves are all as you saw completely doubled up on as much protection as we can i'm excited and so i don't know when you'll see this video but i've held off for a couple weeks because i want to make sure you guys see us right back in action and that's exactly what's about to happen tomorrow tomorrow's tomorrow i'm headed off to the half mile event so yes we're going all the way up to 200 miles an hour and that's why i'm freaking out about this right now so uh we'll see what the next video is it's gonna be nuts it's gonna be absolutely nuts

Channel: Rob Dahm

Views: 324,332

Rating: 4.9515424 out of 5

Keywords: Custom & Performance Vehicles, Mazda, Sports Cars, Vehicle Modification & Tuning, Vehicle Parts & Accessories, Engine & Transmission, High Performance & Aftermarket Auto Parts, Vehicle Wheels & Tires, Used Vehicles, Vehicle Specs Reviews & Comparisons, Transmission Repair & Maintenance, Batteries, Brakes, Interior, Vehicle Fuels & Lubricants, Collision & Auto Body Repair, Oil Changes, Auto Glass Repair & Replacement, California, Rob Dahm, RX7, Hybrid & Alternative Vehicles

Id: T66nMXW0gRs

Length: 33min 13sec (1993 seconds)

Published: Mon Nov 30 2020

Reddit Comments

[u/Daveslayer1]

Robs camera man >> Mike