Rob Dahm

Insane fun pikes peak run! Livestream tomorrow 4pm pst

Omg that was the most fun I’ve ever had driving. I was faster than mad Mike by 1-2 seconds for most of the run. Until I wasn’t. Crazy twist of events! The engine is fine. It was the turbo that blew. Overspooling it 40k rpm for several seconds straight did her in. I thought I flattened apex seal springs. I’ll upload the head cam footage tonight. Thank god I memorized the course. I couldn’t see the second half of it haha

Link for livestream data!! Even with only 1/3 of the race

This will only be live when the car is on. But you can tune in and watch it warm up real time! Buggy potentially but sick possibility. Winds canceled the 2/3 if the race. Super super gutted but at least I get to be here and have ran before to the peak. Feel bad for the rookies. I am 55th in line total currently 20 ish ran so far

2025-06-22 17:03:05 +0000 UTC View Post

Incredible photos of 3 rotor at pikes peak day one

I paid a photographer to help capture content

What’s your favorites from this? I’ll post his links each day. The car is running incredible today. Finally did top section at full speed and loved it

https://gofile.me/7oSpC/HFW2No6nD

Sooo happy with the livery! Super subtle

Finally I get to see the full livery at once. I didn’t put on the tick logos that was Joel haha

Pulled off a miracle! Here is the first sight of the 3 Rotor fully wrapped and looking sexy

So many small things I hate about it but I do love how the overall vision came out.

Livestream!

https://www.youtube.com/live/VLegDPv5PT4?si=gMQcPgoWLh-X_4Dt

Livestream tomorrow! Insane pikes peak updates

Sorry for the radio silence. Been overwhelmed but got some wild things to share. Including possibly private livestream of the car and GoPros on the mountain!! I got a starlink for it. But tomorrows livestream will be normal phone haha 4pm pst

1 rotor livestream! Happening now!

https://www.youtube.com/live/JwvUhtml_nM?si=ASmvLVyJwvMGshQT

1 Rotor build livestream tomorrow 1pm PST

It’s actually happening!! Painful getting to this step surprisingly. But it’s been a minute since I’ve gotten to build a new type of rotary and it’s soooo weird. I don’t even know if we can call it a stack haha

Duct installed! Surprisingly solid!

Really happy with this. Working the bugs out so I can do the 4 rotor perfectly!

Very first 3d print! Pikes peak ducting!!

I printed it in white because I expected it to fail or be useless. Surprisingly useful for the first ever print!

The 12 Rotor is in the Dragster!!!

Nothing else needs to be said.

Test assembling my first piston engine!

This is so weird and complicated. But I love it. Definitely makes me appreciate rotary more and see how we can refine them. But I built that entire head from scratch using used parts. Finally understand what vr1 means when saying flat tappets haha. But I also got to build the slide throttles and see deep inside the head where the spark plug goes. The brand new pistons will hit the valves so you have to do a valve drop test and then machine away 30 thousands. Has to be insanely high compressio...

Livestream! Horribly late

https://www.youtube.com/live/OSLBCEVlvfY?si=SOcrhQs5kJwckmx8

Livestream at 4pm!! Additional patreon benefits

Super excited to share this. I’ve been working on my scanning skills and want to share all the scans I make with you guys. They will be meshes of all the various engine parts in the shop. Both rotary and cosworth. The rotary parts seem more useful but both will be fun to work with. But I have so much to share beyond just the scans in the livestream. Some very intense last couple days.

Fire way to start the week! 12 rotor dyno getting hot!

We are finally making progress on the power! But it turned into fire. This is after the fire was out but we made 1300tq and 1500hp before pulling out. Bad internet here but I’ll try to capture the moment. If the engine holds together it should make 2500 at this point

Indycar transmission reassembly time!

The guys are at Ed pink setting up the 12 rotor for the final dyno session hopefully. So I have a clean air shop to reassemble the Indycar transmission. I can tell it’ll come back down soon for maintenance once it fires up but it’s wild to see how none of these pieces resemble a normal car. To me anyways haha.

Indycar development! Pretty good for only measuring by hand

Entire Cosworth XD history available only to Patreon

As we scan all of the paperwork you can see all of it here and updated as we get the other boxes scanned in. I currently have 27 and 28 in the shop. Fascinating how detailed they are

Fuel pump adapter created for the Indycar! It can finally go together!!

This is super challenging to do on a 3 axis cnc haha. The oring groove and the threaded piece all unique challenges

First attempt at using AR to fit the 12R. Insane

We already have the chromoly and a solid plan. But with the engine waiting at Ed Pink for the engine dyno next week I wanted to give the guys a way to visual and trust the process.

Cosworth 12 rotor livestream!!

https://www.youtube.com/live/PJY2DBCjy5A?si=WmmOF1-a4YI7mk-s

Livestream Wednesday at 4p pst

So so so so much to share wiht you guys. It’s been insane. But hot off the press here is the ignition system on the Indycar firing for the first time in the new millennium haha

MASSIVE ANNOUNCEMENT. I DID SOMETHING CRAZY

So I just blew my savings on a rare opportunity. I think you guys will appreciate what it means for the future of the channel. But I also might be in over my head. I was given the opportunity to buy all of Cosworth USAs old stock. Every race engine from 1996-1999 and all of the parts and molds to make more parts. More than 20 blocks and enough parts to make another 20. I’m speechless. Livestream Friday to go over the absolute once in a lifetime opportunity.

New starter on 24v means 0.5 second start!!!!!!

This is hot off the press. Back to the dyno tomorrow AM!!! I’ll try to livestream if the internet is stable. Otherwise I’ll upload right as soon as we get pulls done and letting the engine cool down! But this is no starting fluid. E85. 60f block

Drag chassis modeled and tested!!

So so so powerful. I worked hard over the weekend to learn tubing modeling. This is the current dragster chassis with 12 Rotor base power applied. So it’s all estimating 1000ft lbs of torque from the engine spinning. But that is multiplied by the diff and turns into 4x that. All of this tube is hollow and is modeled almost exactly proper. But you can see the 1000 lbs of the engine sitting down on the tube. The rear diff fighting the wheels picks up the chassis 0.85 inches!!! If the 12 roto...

Livestream!

https://www.youtube.com/live/YXFYtKhKO08?si=3TJ8cqthsHzcxPWT

Huge Livestream!! tomorrow 4 pst

Got so much to share with you guys!! But the cfd company is flying in tonight and going to help scan the interior of the 4 rotor and help take it to the next level with the rear radiators and ducting plans. But even cooler is I scanned the 12 rotor and the dragster and it might just work. With some chassis modification haha. But even the 1 rotor stuff is going to be wild. And I have some super secret stuff related to F1 that might happen with the Indycar but it has to stay with us for now. Ba...

The forbidden 12R Miata haha

Just because we can doesn’t mean we should haha. This was so fun to play with. But absolutely useless otherwise haha. I wanted to get jack stands to tilt the car but the engine weighed it down enough to do exactly what you see. We rolled it around. It is insane.

THE ONE ROTOR IS HERE!

This is the only time in history 1-12 has been in one pic. Of course Mazzei had to go and invent a 5 rotor so technically that’s missing. Going to have a fun time twisting peoples expectations with the Miata and then going from 12 to 1