Video

Noooooo....the cliffhanger......!!

super interested in that

So glad Rob uses ppe when welding. idk why people like barehanding filler metal

NO GLOVES ON SPINNING TOOLS!!! You NEED to grow a great mustache before Pikes Peak. Look like a pilot while flying low!

I swwitched my old FD track car to manual, non-ABS brakes back in 1999. Went to twin primary (nee: master) cylinders, Porshce d996 front calipers and WILLWOOD rear caiipers and discs on the rear. A fabricator named David Breslau machined the adaptor brackets for the rear caiipers. You are on the right track.

would be cool to see you use AI designed uprights one day!

why is there a fireman working in that garage ? where is rob

this build has been so awesome !! I can't wait to see the finished car, and I have never looked forward to Pikes Peak more !!!

Rob please use a guard on the grinder. I'm a safety professional and I've seen horrible accidents happen on the oil field with guys not using a guard. I'd hate that happen to you..

Seems you have a functional solution, you can lower the outer wishbone mount or raise the inner wishbone mounts. If packaging is an issue, pushrod and rocker allows you to use leverage multiplication to choose a smaller coilover package mounted either transverse or longitudinally.

20:30 you better make those parts. DO YOU UNDERSTAND HOW BIG THAT COULD BE

When doing full pen weldss you need to grind down to the root from the other side or you have a void that will potentially start a crack

24:26 good boy. -engineer

17:00 as a farmer id trust those welds just the way they are

Who else subscribed solely for the 12 rotor?

drift boy stuff

Next will be making cad files and custom billet versions using the A.I to remove all extra material like the intake on the 12 rotor

One goal.anything but a Miata..

Dahm’s doing the Reno 911 ‘stache alls he needs now is new boots 😂

I can really appreciate ur learned knowledge of suspension geometry and ur ability to fabricate these arms

That’s a terrible modification. Just a dangerously weak spindle. Do what you want but on the mountain you will find out. I would suggest you CNC that design out. I like your videos and I’m sure you enjoy your life.

Does welding change the properties of that type of cast(?) aluminum?

12 rotor? Dropping everything...

It’s enough weld when you say it is 😂 slaps it, that’s not going anywhere, all depends on the casting

When is your pikes peak race?

..."and here's something you only see on race cars.." . . and every motorcycle in the last 20 years :P Sorry @RobDahm! Full floating rotors are brilliant, but you MUST maintain the bobbins.. Don't lubricate with anything other than graphite powder, but keep those bastards clean - they should spin easily using two fingers.

11:50 on the rear geometry considerations- Caster (and kingpin) angle don't really matter on the rear because you're not turning, like you said, and it's best to just get the points as far from each other as possible to minimize overall deflection. but there is often some intentionality in the positioning of the "steering axis" (virtual axis passing through upper and lower links; still present even if there's no intentional steering) and in particular the mechanical trail and scrub radius which are impacted by those angles. Having a little bit of mechanical trail is a good thing at the rear as it keeps the tire self-centering and reduces potential compliance in the toe link, and minimizing scrub radius at the rear helps reduce the forces through the toe link during a typical bump load case. Packaging and other considerations often take priority anyway in rear suspension design, especially bump steer like you say, but there are things you can do with the rear outer geometry that dont seem immediately beneficial but can help you out in general

Gloves and spinning tools are a no bueno

Yes the Kinematic would be shit if you just lowered it

Nice jig for the knuckles Rob!

instead of billet version of it, Metal 3D Printed version would be cool.

We get it, it's a dynasty 210 and you beveled the edges...;)

weld has pinholes

what a dream 😍

Who else is proud of Rob? He went from trusting his life in others and figuring it out small bit by small bit, to trusting his life in his own work and making leaps and bounds in advancement in his work. Bravo entirely!

I'm confused there's cops in California?

Use acid to clean porosity out of aluminum before welding

I think wilwood only gets hate by people who are uneducated and only see it as a cheap alternative to AP racing or something. Wilwood makes great products for what they are. Yes there are "nicer" things out there, but they cost way more money.

Give us allllll the nerdy stuff! I'm surprised you didn't machine a series of female notches into the spindle to receive the new ears. Then, machine a male notch on the ears for absolute exact pickup location changes. I guess the setup would be just as tedious as doing a full billet spindle?

I’m no professional but in terms of how much weld. a weld is going to only be as strong as the material so a weld as wide as the thickness of the part is all you need theoretically

As long as you run enough where the weld is flush are domed a little that should be good buy if you are truly worried run a double or triple pass

this build is my favorite youtube content right now. Probably the best content i've seen all year actually

Is that some part shop max I see on there?

Good thing you mentioned the heat treatment so it's like you know what you are dealing with, billet would be the ultimate best solution since you have a cnc machine and it doesn't need heat treatment and it's way stronger than cast, but I can only wonder what would be the overall cost of it at the end of the day, but overall it's a major upgrade for everything considered!

discovery channel car show - "here are some *tires* they fit on car *wheels* . Cars have *four* of them" rob - "check out these brake rotors - no bolt holes because its better for a racing setup to have the rotors floating" this is why traditional media is doomed. I'm well aware that cars have 4 wheels. never before seen a floating brake rotor

Run a 2.4mm rod not the the 1.6mm on them high amps rod will burn back when u try and add but either way looks good enough to me the cast will break before the weld does

@6:20 in vid-ish, I also like to use a good "chucking reamer" to get the perfect size and shape out of the threads for the best bite. Just in case that helps Rob.

The whole time I watched to modify the spindles I wondered why you didn't CNC some billet. Then I heard you say you're going to in the end. Yeah, I'll kick those tires Rob.

@Jeff McErlain thank you so much you just taught me the basis for that sound in my head I always wanted to sound a certain way and I always knew it had to do more with harmony than it did licks and scales and this just gave me a major light bulb moment. I know where to go now and I understand how to study it. God Bless you sir and if I keep thanking you for the rest of my life it still won't be enough.

"This glorious mustache doesnt belong on my face" - Rob even though big bushy fireman mustaches are totally in style right now.