That cut on the last video was among the most brutal cliffhangers rob has hit us with ... I actually said "what the fk" out loud and then laughed hard as fk
i dont think people Rob knows how hard it is to build a car like that from scratch and get it to work so ill say it congratulations Rob and your partner on his mad welding skills you guys work great together
@@pA-yy-A I was gonna say he did the English language dirty " I dont think people Rob Knows"... what...Should of been Rob, I don't think people realize how hard it is. I'm also dyslexic so I understood it lol. Technically he started with a base model car, he just upgraded every single component on it to premium race grade/aircraft grade as he could and just keeps refining, testing, breaking, upgrading and so forth. He's his own shop, testing facility, research and development. I'm curious what this project will be like in a year from now, then 5 , 10 years.
that's how you know its a race car. normal people spend money on expensive race seats for their cars that drive like lawnmowers, Rob puts money in to performance.
The only thing that makes me uneasy is the no firewall and not having a fire surpression system And the lack of aligment too For the rest i love the build
love this build to...nicest RX7 I ever seen but yea I agree about not having a firewall makes u uneasy hopefully when he gets everything done how he wants it.. hope he builds a cover for the trans and just make inside not exposed like it is
Rob Dahm and his team just put together LITERALLY one of the best cars ever created, right in front of our eyes. Then bro said, “aight imma take it around the block now” 💀 the most elaborate flame thrower I’ve ever seen lmao.
I've always been impressed with how much research goes into creating these cars but the thing I've been even more impressed with lately is how you and your team understand that some knowledge is only attained by trial and error and you'll prepare days, weeks, or even months in advanced for things that you can't simply search up. The amount of times you've come across something that wasn't exactly an issue at the time, noted it down, made measurements, and even made marks for reference just to check them months down the line and making sure to tell us astounds me. It shows that this is nothing like a hobby or a passion, it's a whole different life at this point. You really do live and breathe this stuff and it's been most enjoyable to watch.
All these little improvements are turning this thing into a true build masterpiece. I think a lot of people, myself included, really expected the car to be perfect as soon as the motor ran well, but really it’s so much more. Great job guys 👏🏻👏🏻👏🏻
Hey rob, the reason the end plates on the wing are ‘upside down’ as you think, is because most of the downforce occurs under the wing, on the underside of it, not the top. Similar to an airplane wing. But opposite, downforce, not lift
I may be drinking but when you show the car at 33:01 I shed a tear. I am so happy to see the dream coming together, and the progress you have made since the beginning. I am truly blessed to be in this time period where I can see someone with true passion learn and create their dreams by hand. I am also so happy that you found a group of true friends that have shared the dream with you and put in endless hours to help create this fucking gem I see now. I hope you never stop striving for perfection and creating purpose built machines!
FYI, you were right, the end plates for the wing are for containing the airflow. They're to stop the air taking the path of least resistance which is not over the face of the wing but off the side. The reason they point down, not up, is it's actually the underside of the wing that generates the downforce. So it's more important to contain the air on the bottom than on the top face... The same principle is why swan neck wings are becoming so prevalent. If you mount the wing by the top, it leaves more area for smooth uninterrupted airflow on the underside of the wing.
It can not be stressed enough how beautiful the 4 rotor is. This is a work of art at this point. You’ve left no stone unturned, left nothing to chance, and built the most cleanest and beautiful ride on YT, and in general. Ahura is smiling, well done Rob and Isiah
You can see it at full rip in the boostedboiz video where they break the nsx on the same tv show. He put a full pass on the dragstrip and him going around a corner and then flooring it on the way it!
I love how far this has come, and how these two work so well in tandem together. Seeing them both sign the patreon posters together was a really great sight to see. I met Rob at the start of a road rally in San Diego 5.5 years ago, was a great person, and glad to see that hasn't changed after these years and his passion project has come this far. To more and more success and progress!
I am 95% sure the rear wing end plates are mounted back to front. They might "look better" this way but the wing efficiency will suffer as you allow more pressure exchange between top and bottom part of the wing that they were design to prevent.
Rob, you could have just used the tie rod as a tie rod.... Lock the tube you fitted onto the joint that will connect onto the knuckle with all threads engaged then don't touch it again! If you want to adjust toe, undo the INNER lock nut between the tie rod and the tube then turn the actual tie rod (as you were describing would spin).
for the tie rod ends i suggest locking/welding or other wise locking the rod end to the extension and only adjusting the toe by the ball rod end with all the threads available as it would be from the factory thus only one rotating part
Rob, run a servocylinder to that spoiler to make it adjustable on the fly, then you can tilt it for. Low speed high downforce, high speed low drag, and any speed air brake! Lovin the improvements. By far my favorite build in the world. You're livin the dream man
The instant you started taking this car around turns and not just doing straight line stuff. I asked when is the rear wing gonna be installed. Happy it's finally here.
Random advice here: The ring between the preload spring and main spring, if you have a diameter attached (cross section sideways T) on the inside of spring that reaches both up and down, of different lengths. That way you can run it with the long or short leg reaching to the top. It gives you an extra adjustment, allow a tuning of at what point through the suspension travel it transfers between the springs Hard to explain with a simple drawing. Common on offroad suspension where 3, sometimes 4 springs are used, gives huge adjustment of how the spring rate progress with travel. As it stands your new small preload spring will fully compress and then run the main spring, putting a 'stop' of various and choice will give you not a ride height adjustment, but at what point that it starts too sits on main spring. Like if on power it dropping to low, you don't need to increase ride height/overall preload, just put a long leg point to top of shock so it hits main spring quicker
Two of the best automotive engineers on the planet, they are also the most honest and most humble, trial error or failure is there in the footage. Absolutely love this channel all the very best from Scotland guys and girl.
Using a block of wood to prop the hood up is funny to me because I do the same. When I got the car it came with the stock thing missing but the previous owner used a wooden stick and kept it under the hood.
Slap a safety tether or hook on that hood so it doesn't kiss the roof like the last one. Would hate to see that beautiful work of art get smashed after you spent so much time on it. Love how the build is coming along!
I would paddle shift the gears as you hover the hand in videos. then add a button to the wheel for the line lock. Also bonnet pop under guard no good with engine fire. Put in front where fire Marshall will see or cabin. Awesome stuff though fellah.
With as wide as the rear is and that massive rear wing, she almost looks like a viper pulling into the trailer. Looking better than ever Rob! Cant wait to see you on BG!
this brings me back to a few years ago when I first found your channel after you showed David Mazzei's showed you his 4 rotor RX7 especially with that trailer shot cant wait to see what's to come hopefully I can start my RX7 journey soon
Rob, your team and yourself do amazing work. From welding, fabricating, testing and refinement. However there are tons of small things I've noticed that you could tweak and upgrades that aren't expensive that will make your work better and safer. A quick example is in this video, at 12:13 you are using what looks like a basic set of plyers to act as a spoon for filling grease into the axle joint/hub. For starters, a quick phone call/text/email to the company would get you exact info on the amount needed of grease to add, when it comes to your life and others don't gamble and wing it unless you have to. You just broke an expensive part and have a replacement one, find out how much to add, why it needs to be that amount and what happens when there's less or more then that amount... besides not being accurate, you're potentially risking scraping the metal inside by coming in contact with your plyers. Get yourself a caulking gun, and that grease should be available in a caulk form, or can buy empty ones and fill it yourself with the grease. Pump it into the area you want with precision and because the tip of the caulk is plastic/silicone it will never run the risk of damaging the metal unless you really ram your caulk. If you don't want to go that route then at the very least look at heavy duty silicone spoons, scrapers to make the job cleaner and easier.
Smile on my face ear to ear and nearly brought me to tears just watching you start that thing and load it up sounding, looking, and running so freakin good. Long time coming brother; so excited for you!
Dude I love your videos I learn so much! Your one of the only car TH-camrs I can actually watch a full 45min video and enjoy the whole thing Love the car, love you man your the best!!!
I remember you trying to decide how much you needed to extend the frame to fit the motor..... you guys have done absolutely incredible things here! thank you so much for taking us all on the ride with you (figuratively, at least). :D
That wing would be sick with a DRS (Drag Reduction System) and as air brake with pneumatics. Maybe thats why you got the fancy steering wheel disconnect and paddles. 😁
Between this channel and cleetus I am so excited for these teams builds...so much entertainment and joy...thank you for sharing in this. Looking forward to you blowing the hypercars out of the water
Without getting to deep on the aero rabbit hole, when mounting the endplates, they are used to speed up the air under the wing. Given the air pressure differential being the cause of the downforce, the bottom side of the wing is more important that the top, hence all of the gt cars have all switch to the top mount style wings. Short answer, hot Boi look is right
Since Rob goes through several iterations of designs as he learns and grows, my hope is this was just the quick option to find a passable solution to the downforce imbalance. I would love to see a swan neck design or possibly a multi-element wing in the future.
Thank you man. Ya I love rob and his constant learning, coment was not intended to be condescending at all, hopefully it came across as genuinely helpful
I agree with so many others, the car God's has blessed us with 2 45 minute videos from the Man and his team of boundary pushers. Can't wait to see what it does with all the little upgrades and fixes. You have by far the best..IMO..content on this platform.
I would love to see the 4 rotor try a drag and drive event with all the care he has put into that car I think it would not only make it but do well in it
Rob, At about 41 minutes in this video, we can several dark grey blobs in the sky. Contrary to what I want to believe, they are not UFOs or spy balloons. They are really specs of dust on your camera sensor. You can take your camera to a local camera shop to have your sensor cleaned to get rid of those for future filming. You can also just order the supplies on Amazon and clean them yourself, but a full service at a camera store from time to time would be nice for a tool that you use daily in your job.
Love your videos and the work you do. That said someone needs to tell the master fabricator Isaiah that when he is showing a noob how to open a drum he should do it like a pro. While he had 2 prybars out he only used the one. While that works sometimes in ideal situations that doesn't always work. What ya do is take both prybars and put the tips on both tabs in the cap. Then with them opposite each other you use both prybars to apply even pressure on both tabs of the cap and rotate it loose. This will work no matter how stuck the lid might be. Both prybars will get a good a good bite on both sides and prying against each other on both tabs will give you even distribution of force into the cap. Just a pro tip. Excellent work on the car by the way. Keep up the good work!
Something about that spoiler looks seriously off, for some reason. Like it doesn't match the car, at all. I'm not quite sure as to why but perhaps it's too high up, too far back, or just too big. Or maybe it's the shape? Maybe all of those? Idk... It's size definitely looks a bit -diving board- overboard, and it's shape does not flow well with the rest of the car. I get that it's just a first spoiler, though, and things will most likely change in the future.
Cannot wait to see the next video!!! Good work Rob and crew! Have enjoyed watching the life of the 4 rotor, and all the experiences you guys have been through.
Love seeing you guys chasing your dreams as a collaboration, almost like a marriage each person doing their part but the task couldn’t be completed alone
An 8-10" Crescent wrench (adjustable wrench) works great for opening barrels. Easy one handed operation. open the jaws up and and hook on. Channel Locks work well too
There was a bottle cap in the parking lot that had been run over and frozen and today it thawed out and I saw it and it was a triangle and I thought of a rotary, Rob Dahm and then the convertible I know about hiding downtown Mpls that.I can get pretty cheap I think. My dad had an 80s RX7 when I was younger. I will own and build a rotary. Robs hella inspiring
21:56 adding more phisical weight would also increase the lateral forces the car expreiences in cornering and becouse the maxium lateral force a tire can hold drops off the more wieght you add (this is called tire load sensitivity). So if you increase the phisical weight of the car it would actually make your problem worse.
gotta say it love the car overall HATE that wing you should find a way to put pressure sensors or at least right height measuring units on the dampers. then you'll have a metric to get something made that flows with the trunk better. wouldn't be surprised if a simple gurney flap did wonders.
Theoretically yes, but if you look at a TON of series you'll see that they dont invert the damper, because the change in unsprung mass is imperceptible, but making it way harder to adjust the dampers is a very obvious drawback as soon as anything has to change. These guys, who arent even close to "dialed in", will have a lot of guess and test to do with the suspension, and race teams have very consistent drivers who can make the most out of small changes, so 2 tenths and a 1.5% more drivable car are worth the adjustment. Also on this car they plan on changing setups on the fly based on what kind of driving theyre doing, so again, adjustability trumps the absolutely tiny difference. Now, on bikes the change is a bigger portion of the unsprung mass, and the adjustment points can still be accessed, so all bikes should be running inverted dampers
18:55 Speaking of removing your hands from the wheel. I noticed that your right hand is off the wheel anticipating the upshift more than its griping the wheel when racing. Your down shifts are very quick and I think it's because its much easier and takes less brain power to push the lever forward with an open palm than pulling on it once your hand finds the correct spot on the lever.
For you trailer get a (20V/40V tool) battery powered fan (like, 20” or so) and put it in your trailer, and switch it on at full strength when driving in. Not a bad thing to have around to quickly cool down your car anyways!
Two 45+ minute long rob videos in a week? The lord has blessed us people
The what?
He’s on that tv schedule.
Us people how rude
The rotary gods are kind
@@nickcollins1528 how is that rude? He just forgot punctuation. Also us people refers to humans
So proud of how far Rob has come it’s insane!
facts
The Question is: Does Rob still use UPS?
@@SimoBenziane lmao true
That cut on the last video was among the most brutal cliffhangers rob has hit us with ... I actually said "what the fk" out loud and then laughed hard as fk
I had the exact same reaction lol
Its like his specialty by now lmao. Just an abrupt cut no outro or anything
you and me both my friend..💀
Yup
i dont think people Rob knows how hard it is to build a car like that from scratch and get it to work so ill say it congratulations Rob and your partner on his mad welding skills you guys work great together
haha you did isaiah dirty here
@@pA-yy-A I was gonna say he did the English language dirty " I dont think people Rob Knows"... what...Should of been Rob, I don't think people realize how hard it is. I'm also dyslexic so I understood it lol. Technically he started with a base model car, he just upgraded every single component on it to premium race grade/aircraft grade as he could and just keeps refining, testing, breaking, upgrading and so forth. He's his own shop, testing facility, research and development. I'm curious what this project will be like in a year from now, then 5 , 10 years.
@@MultiTravellingman well, none of us are perfect. "Should HAVE been Rob"
@@McBoj There is perfect and butchering the English language and making something nearly incomprehensible.
Rob: spends untold thousands of hours and dollars making the car perform better and be safer
Also Rob: runs ebay special, knock off seats
That's why we love him.
that's how you know its a race car. normal people spend money on expensive race seats for their cars that drive like lawnmowers, Rob puts money in to performance.
The only thing that makes me uneasy is the no firewall and not having a fire surpression system
And the lack of aligment too
For the rest i love the build
love this build to...nicest RX7 I ever seen but yea I agree about not having a firewall makes u uneasy hopefully when he gets everything done how he wants it.. hope he builds a cover for the trans and just make inside not exposed like it is
@@naizeylines Seats for real race cars are pretty important (for driver concentration and comfort over the time of a stint or race) and expensive...
Rob Dahm and his team just put together LITERALLY one of the best cars ever created, right in front of our eyes. Then bro said, “aight imma take it around the block now” 💀 the most elaborate flame thrower I’ve ever seen lmao.
Holy shit two mega long episodes within 24 hours of eachother?! Best valentines ever, give Isaiah some extra belly rubs from me please Rob
I was thinking nipple rubs
I've always been impressed with how much research goes into creating these cars but the thing I've been even more impressed with lately is how you and your team understand that some knowledge is only attained by trial and error and you'll prepare days, weeks, or even months in advanced for things that you can't simply search up. The amount of times you've come across something that wasn't exactly an issue at the time, noted it down, made measurements, and even made marks for reference just to check them months down the line and making sure to tell us astounds me. It shows that this is nothing like a hobby or a passion, it's a whole different life at this point. You really do live and breathe this stuff and it's been most enjoyable to watch.
All these little improvements are turning this thing into a true build masterpiece. I think a lot of people, myself included, really expected the car to be perfect as soon as the motor ran well, but really it’s so much more. Great job guys 👏🏻👏🏻👏🏻
One of the most intricate builds I genuinely enjoy seeing. Insane.
Hey rob, the reason the end plates on the wing are ‘upside down’ as you think, is because most of the downforce occurs under the wing, on the underside of it, not the top. Similar to an airplane wing. But opposite, downforce, not lift
Came here looking to see if I was going to have to be the one to call him out on that.
@@mavisky we always here to support big daddy dahm. even with my little bit of knowledge
This comment needs to be higher.
Indeed it prevents higher pressure air from the top of the wing spilling into the low pressure zone under the wing.
I hope he sees this
Great to see a car builder who is able to nicely balance creating a mechanically awesome car but also a very striking and good looking car as well.
I may be drinking but when you show the car at 33:01 I shed a tear. I am so happy to see the dream coming together, and the progress you have made since the beginning. I am truly blessed to be in this time period where I can see someone with true passion learn and create their dreams by hand. I am also so happy that you found a group of true friends that have shared the dream with you and put in endless hours to help create this fucking gem I see now. I hope you never stop striving for perfection and creating purpose built machines!
FYI, you were right, the end plates for the wing are for containing the airflow. They're to stop the air taking the path of least resistance which is not over the face of the wing but off the side. The reason they point down, not up, is it's actually the underside of the wing that generates the downforce. So it's more important to contain the air on the bottom than on the top face... The same principle is why swan neck wings are becoming so prevalent. If you mount the wing by the top, it leaves more area for smooth uninterrupted airflow on the underside of the wing.
That spoiler looks absurdly huge, even for the size and power of that car. Yeesh.
32:35 "Wow, that's a lot more that I was expecting"
"Did you want me to actually fill you up?"
Kudos on everything you've done in this small revision. It's a crazy car and will only get crazier
It can not be stressed enough how beautiful the 4 rotor is. This is a work of art at this point. You’ve left no stone unturned, left nothing to chance, and built the most cleanest and beautiful ride on YT, and in general. Ahura is smiling, well done Rob and Isiah
This project is absolutely incredible. Can’t wait to see it at FULL RIP! Great job, y’all! Much love from Texas!
You can see it at full rip in the boostedboiz video where they break the nsx on the same tv show. He put a full pass on the dragstrip and him going around a corner and then flooring it on the way it!
Share the link
@@stevhandingwall2028 search for "The Absolute WORST Outing We've Ever Had In the NSX"
I love how far this has come, and how these two work so well in tandem together. Seeing them both sign the patreon posters together was a really great sight to see. I met Rob at the start of a road rally in San Diego 5.5 years ago, was a great person, and glad to see that hasn't changed after these years and his passion project has come this far. To more and more success and progress!
By far the best car on TH-cam. Nothing like it
I am 95% sure the rear wing end plates are mounted back to front.
They might "look better" this way but the wing efficiency will suffer as you allow more pressure exchange between top and bottom part of the wing that they were design to prevent.
Rob, you could have just used the tie rod as a tie rod.... Lock the tube you fitted onto the joint that will connect onto the knuckle with all threads engaged then don't touch it again! If you want to adjust toe, undo the INNER lock nut between the tie rod and the tube then turn the actual tie rod (as you were describing would spin).
I watched that video at work and the dialog was a bit quit so I turned up the volume, then the car showed up and blasted the office immensely!
Ngl, I loved how Rob said "our car" 42:02
Every time I hear this car fired up, and doing a pull, I'm always blown away. Every, single, time
for the tie rod ends i suggest locking/welding or other wise locking the rod end to the extension and only adjusting the toe by the ball rod end with all the threads available as it would be from the factory thus only one rotating part
Rob, run a servocylinder to that spoiler to make it adjustable on the fly, then you can tilt it for. Low speed high downforce, high speed low drag, and any speed air brake! Lovin the improvements. By far my favorite build in the world. You're livin the dream man
The instant you started taking this car around turns and not just doing straight line stuff. I asked when is the rear wing gonna be installed. Happy it's finally here.
Random advice here: The ring between the preload spring and main spring, if you have a diameter attached (cross section sideways T) on the inside of spring that reaches both up and down, of different lengths. That way you can run it with the long or short leg reaching to the top. It gives you an extra adjustment, allow a tuning of at what point through the suspension travel it transfers between the springs
Hard to explain with a simple drawing.
Common on offroad suspension where 3, sometimes 4 springs are used, gives huge adjustment of how the spring rate progress with travel.
As it stands your new small preload spring will fully compress and then run the main spring, putting a 'stop' of various and choice will give you not a ride height adjustment, but at what point that it starts too sits on main spring. Like if on power it dropping to low, you don't need to increase ride height/overall preload, just put a long leg point to top of shock so it hits main spring quicker
Never stop man. It’s refreshing to see someone on your level so driven to learn and evolve. Keep it up!!
Two of the best automotive engineers on the planet, they are also the most honest and most humble, trial error or failure is there in the footage. Absolutely love this channel all the very best from Scotland guys and girl.
Using a block of wood to prop the hood up is funny to me because I do the same. When I got the car it came with the stock thing missing but the previous owner used a wooden stick and kept it under the hood.
love this guy his video's because he shows the endless test driving and changing small things.. you dont see that on other car building channels
This car. It's literally the best car. EVER. can't wait to see it once you have thr body all done on it! Keep it up!
That INSTANT startup at 1:37 is OEM smooth. That's crazy good.
best gift for us single people on Valentines. sit back with a glass of wine & watch daddy Dahm & fab father
The "hop on into my crib" made me loose it! FABulous!!!
The wing adds to the look of the 4 rotor, can’t wait to see the body fully completed, (if it ever is lol)
Been a long time waiting for the car to finally start looking like a solid complete car. Always had faith brother that you would get it done.
Slap a safety tether or hook on that hood so it doesn't kiss the roof like the last one. Would hate to see that beautiful work of art get smashed after you spent so much time on it. Love how the build is coming along!
That car is looking absolutely insane so glad I've been following your build since the early days.
Can long videos become the new standard? Absolutely love watching the videos. Great Job!
I would paddle shift the gears as you hover the hand in videos. then add a button to the wheel for the line lock. Also bonnet pop under guard no good with engine fire. Put in front where fire Marshall will see or cabin. Awesome stuff though fellah.
With as wide as the rear is and that massive rear wing, she almost looks like a viper pulling into the trailer. Looking better than ever Rob! Cant wait to see you on BG!
this brings me back to a few years ago when I first found your channel after you showed David Mazzei's showed you his 4 rotor RX7
especially with that trailer shot
cant wait to see what's to come
hopefully I can start my RX7 journey soon
I word for hearing of seeing this car. Goosebumps.
the end plates should go down because on a wing the lift is generated mostly by the convex side so that is the part you want to direct the air to
Rob, your team and yourself do amazing work. From welding, fabricating, testing and refinement. However there are tons of small things I've noticed that you could tweak and upgrades that aren't expensive that will make your work better and safer. A quick example is in this video, at 12:13 you are using what looks like a basic set of plyers to act as a spoon for filling grease into the axle joint/hub. For starters, a quick phone call/text/email to the company would get you exact info on the amount needed of grease to add, when it comes to your life and others don't gamble and wing it unless you have to. You just broke an expensive part and have a replacement one, find out how much to add, why it needs to be that amount and what happens when there's less or more then that amount... besides not being accurate, you're potentially risking scraping the metal inside by coming in contact with your plyers. Get yourself a caulking gun, and that grease should be available in a caulk form, or can buy empty ones and fill it yourself with the grease. Pump it into the area you want with precision and because the tip of the caulk is plastic/silicone it will never run the risk of damaging the metal unless you really ram your caulk. If you don't want to go that route then at the very least look at heavy duty silicone spoons, scrapers to make the job cleaner and easier.
Smile on my face ear to ear and nearly brought me to tears just watching you start that thing and load it up sounding, looking, and running so freakin good. Long time coming brother; so excited for you!
Lol the wing end caps. I guess swan neck mounts are a thing because more downforce is generated from the air under the wing rather than above it
Dude I love your videos I learn so much! Your one of the only car TH-camrs I can actually watch a full 45min video and enjoy the whole thing Love the car, love you man your the best!!!
I remember you trying to decide how much you needed to extend the frame to fit the motor..... you guys have done absolutely incredible things here!
thank you so much for taking us all on the ride with you (figuratively, at least). :D
Love the content... love being able to look forward to your videos. As a young new tech I have been learning so much from you. Thank you.
Maybe some hvac tubing can be attached to the exhaust just for getting it in and out of the trailer.
That wing would be sick with a DRS (Drag Reduction System) and as air brake with pneumatics. Maybe thats why you got the fancy steering wheel disconnect and paddles. 😁
I would just like to thank Rob for mentioning me in the video ❤
You defiantly stuck at it dude!!!!!!
Hats off too you, for your top shelf engineering effort.
Best wishes from Australia.
: )
It looks PHENOMENAL these days ❤️
Between this channel and cleetus I am so excited for these teams builds...so much entertainment and joy...thank you for sharing in this. Looking forward to you blowing the hypercars out of the water
Without getting to deep on the aero rabbit hole, when mounting the endplates, they are used to speed up the air under the wing. Given the air pressure differential being the cause of the downforce, the bottom side of the wing is more important that the top, hence all of the gt cars have all switch to the top mount style wings. Short answer, hot Boi look is right
Hoping this response gets more attention. Was watching that part crossing my fingers that they figured out the correct way to mount the endplates.
Since Rob goes through several iterations of designs as he learns and grows, my hope is this was just the quick option to find a passable solution to the downforce imbalance. I would love to see a swan neck design or possibly a multi-element wing in the future.
Thank you man. Ya I love rob and his constant learning, coment was not intended to be condescending at all, hopefully it came across as genuinely helpful
I agree with so many others, the car God's has blessed us with 2 45 minute videos from the Man and his team of boundary pushers. Can't wait to see what it does with all the little upgrades and fixes. You have by far the best..IMO..content on this platform.
There is literally not a bad angle to view that car from, it is so bloody clean!
Great job on the wing but myself I like the looks of a bobber mounted wing and the looks of a suspended
wing
I would love to see the 4 rotor try a drag and drive event with all the care he has put into that car I think it would not only make it but do well in it
Rob,
At about 41 minutes in this video, we can several dark grey blobs in the sky. Contrary to what I want to believe, they are not UFOs or spy balloons. They are really specs of dust on your camera sensor. You can take your camera to a local camera shop to have your sensor cleaned to get rid of those for future filming. You can also just order the supplies on Amazon and clean them yourself, but a full service at a camera store from time to time would be nice for a tool that you use daily in your job.
Love your videos and the work you do. That said someone needs to tell the master fabricator Isaiah that when he is showing a noob how to open a drum he should do it like a pro. While he had 2 prybars out he only used the one. While that works sometimes in ideal situations that doesn't always work. What ya do is take both prybars and put the tips on both tabs in the cap. Then with them opposite each other you use both prybars to apply even pressure on both tabs of the cap and rotate it loose. This will work no matter how stuck the lid might be. Both prybars will get a good a good bite on both sides and prying against each other on both tabs will give you even distribution of force into the cap. Just a pro tip. Excellent work on the car by the way. Keep up the good work!
Something about that spoiler looks seriously off, for some reason. Like it doesn't match the car, at all. I'm not quite sure as to why but perhaps it's too high up, too far back, or just too big. Or maybe it's the shape? Maybe all of those? Idk... It's size definitely looks a bit -diving board- overboard, and it's shape does not flow well with the rest of the car.
I get that it's just a first spoiler, though, and things will most likely change in the future.
to watch your passion and all the successes over the years is amazing!!!!!
Cannot wait to see the next video!!! Good work Rob and crew! Have enjoyed watching the life of the 4 rotor, and all the experiences you guys have been through.
That WANG is outrageous!
...I love it.
Can wait for posters of the car with the wing!!!
Love seeing you guys chasing your dreams as a collaboration, almost like a marriage each person doing their part but the task couldn’t be completed alone
An 8-10" Crescent wrench (adjustable wrench) works great for opening barrels. Easy one handed operation. open the jaws up and and hook on. Channel Locks work well too
Beautiful car man, you should be very proud of yourself and everyone who helped in building it
Im drooling so fkn hard right now, cant wait to see the the dyno vid, track vid and upcoming mods!
Awesome vid, djeeez :-). Please wear breathing protection when cutting CF, it's very toxic when the CF dust enters the lungs....
That steering wheel setup....thats it...bravo 👍👍👍
Aero works off the bottom of the wing, the wing ends should be pointed down
There was a bottle cap in the parking lot that had been run over and frozen and today it thawed out and I saw it and it was a triangle and I thought of a rotary, Rob Dahm and then the convertible I know about hiding downtown Mpls that.I can get pretty cheap I think. My dad had an 80s RX7 when I was younger. I will own and build a rotary. Robs hella inspiring
love this build Rob its one of the best builds on youtube and what got me invested and subbed to your channel years ago
21:56 adding more phisical weight would also increase the lateral forces the car expreiences in cornering and becouse the maxium lateral force a tire can hold drops off the more wieght you add (this is called tire load sensitivity). So if you increase the phisical weight of the car it would actually make your problem worse.
gotta say it
love the car overall
HATE that wing
you should find a way to put pressure sensors or at least right height measuring units on the dampers. then you'll have a metric to get something made that flows with the trunk better. wouldn't be surprised if a simple gurney flap did wonders.
with racing car suspension you always have the heavy side of the shock absorber on the chassis, and the light side on the moving arm
Theoretically yes, but if you look at a TON of series you'll see that they dont invert the damper, because the change in unsprung mass is imperceptible, but making it way harder to adjust the dampers is a very obvious drawback as soon as anything has to change. These guys, who arent even close to "dialed in", will have a lot of guess and test to do with the suspension, and race teams have very consistent drivers who can make the most out of small changes, so 2 tenths and a 1.5% more drivable car are worth the adjustment.
Also on this car they plan on changing setups on the fly based on what kind of driving theyre doing, so again, adjustability trumps the absolutely tiny difference.
Now, on bikes the change is a bigger portion of the unsprung mass, and the adjustment points can still be accessed, so all bikes should be running inverted dampers
Get a inclosed trailer with big doors on each side over the axles. That way the exhaust doesn't get trapped in there
I honestly think this is the coolest car I have ever seen in my life, everything about it is just 🤤🤤🤤
Awesome video! so much info to process!
Rob please take care your health, the saw dust from carbon is very dangerous. Anyway thanks for you encouragement doing a amazing car. BR Markus
The car is sounding so good now, amazing how far it's come.
18:55 Speaking of removing your hands from the wheel. I noticed that your right hand is off the wheel anticipating the upshift more than its griping the wheel when racing. Your down shifts are very quick and I think it's because its much easier and takes less brain power to push the lever forward with an open palm than pulling on it once your hand finds the correct spot on the lever.
I thought Rob would have machined 7 o-ring grooves in that CV joint for easy sealing. Maybe v3.
With the wing the car looks so much better, without it it was like it was missing something, looks so good!
16:09 that is aaaamazing
yes the song
this is so fun to watch, amazing amount of work being displayed
Damn talk about timing i just finished first video then see this when I reloaded my TH-cam. Best channel hands down Guys. Keep up the killer work.
the wing ties the whole car together sooooo welllllll 😩
Go get em Rob!!
You've earned it man
For you trailer get a (20V/40V tool) battery powered fan (like, 20” or so) and put it in your trailer, and switch it on at full strength when driving in. Not a bad thing to have around to quickly cool down your car anyways!
Is there a saying for this?... Yes Rob... "Same same, but diffrent"
So glad to hear all these focuses on safety