How To SHOVE a Turbo 12 Rotor into a Dragster

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[Rickbakker]

I really needed this tutorial for my own 12 rotor and dragster. I can always count on you!

[wilmeroberg]

I've been trying to fit my 12 rotor engine in a dragster for months now but haven't had any luck.. Thanks for the tutorial!

[raykaufman]

ROB, if you haven't already, make sure NHRA will ALLOW you to upsize those tubes. Dragster chassis aren't exactly like a door car. They are designed to bend, fold, and even break at certain points to protec the driver. I'm sure you have the SFI spec for the chassis, but check with a tech official to make sure the tube specs can be changed.

[JBNL]

Rob! A Tip I saw on another channel! (thank you Starr Creations) ..put your scanning dots on a piece of tape then stick that on whatever you want to scan; makes removing the dots afterwardss a lot easier!

[TheHighborn]

7:20
Computer: I'M FIGHTING FOR MY FUCKING LIFE HERE MAN

[Isthatamksupra]

See, this is why tutorials are important. I didn’t know why mine wasn’t fitting but then you showed me that it was upside down the whole time!! Thanks Rob, you really helped turn things around😂❤

[Jannikik]

Wouldn‘t it be a good idea to mount the turbos behind the engine like on an f1 car (f1 engine without the split turbo) an make the intake face backwards?
You could also Integrate an water intercooler inside the intake manifold

[aserta]

11:42 Get a rolling chair and start bottom up. Also, dot your floor as well. You can discard that element later in post, but use it as a reference for when you switch from one side to the other. Use the rolling chair as a means to travel uniformly across the action rather than panning or moving your hand across.

Extra tip, you can use your knee to stabilize the motion as you go. Scanning is like taking a panorama, the moment you frak up the line that's when you get mistakes in the scan.

Also, if you do live scan, shut down all other programs on that laptop. You want all the processing power to go to the program. Not often, and rarer with modern units, but you can get some frakkery going on if there's a hang. I've had it happen with half a mill setups.

[JonWaterfieldMotorsports]

There is actually a real reason for the drilled holes in the frame tubes - they actually pressurize the frame with air and a part of tech inspection is to verify it maintains a static pressure as it used to monitor the chassis for cracks that would let the air escape- its all for safety and determining the lifespan of the chassis - i know they do this in Bonneville land speed cars as well

[tmmy]

That ad with your dad was priceless, honestly

[rudedogg]

Rob: it's refreshing to see someone finally take my advice. Im one of the people that suggested a dragster chassis to showcase the 12 rotor. However im not sure about your triangulated motor mounts as the flex designed into them may cause engine or chassis damage. Perhaps consult with Clay before you finalize your design in that area. Looking forward to seeing some 1/4 mile passes soon 👍

[RENO_K]

Rob, those welds are meant to fail in the case you crash so the engine hopefully stops far before you do or at least away from the cockpit,
If you crash you don't get pinched in the barrier by the huge hunk of metal behind your spine

Edit : I'm talking out of my ass rn, but structurally it looks like that
As in F1 and Indy car they have shear bolts that do that to separate the mass of the car

If you think about it, these engineers have been toying with these death traps for decades, a weak joint usually signifies a designated failure point preventing the system from failing anywhere else
A mechanical fuse of sorts

[dave]

I knew a guy that did his own chassis work. When he got to the track, he was told he missed some crucial details. They allowed him one "experimental/exhibition" pass. After that he needed to consult a shop that builds certified race chassis.

[jameshatton]

You got me fair and square with that cut at the end! Damn it I was getting so into this video and you pull the rug from under Now! This many years into watching you on YouTube!
You've gone from blue balling to rug pulling!

[Mile-long-list]

This channel has escalated so far over the years but that sawsall just won't go away 😅

[Bartons_Ltd]

Perfect Dahm video.
Your dad, amazing CAD edit montage, typical ending
Keep it coming

[bendont]

One of the most interesting projects going on right now. Really looking forward to more content on the 12rotor hotrod!!

[zlid]

@Rob Dahm There are special 3D scanning sprays that you can spray on. They stay for a few minutes and then vanish totally, leaving no trace or smudges. You can even spray on electrical components and stuff.
I suggest investing in a few cans of that instead of foot spray!
It also have a much better coverage than the spray you used. I would honestly say its a must for 3D scanning.

[TheOneShirokage]

You could always put the inlet side of the intake on the back side of the engine. So then your turbos would be more rear mounted and the weight closer to the rear where you would want it. The middle turbo could then be oriented to catch fresh air easier this way

[korzer]

21:02 Glad I'm not the only one who's knees crack like that 😆