We got BILLET Aluminum Rotors in the 1 Rotor Miata

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[TiViD]

Please develop a bulletproof kit for a 1 rotor! Would love to put one in my old Honda n600 !!

[laureeeeeeeeeeeeeeen]

Be very careful about gasket materials and ventilation on a laser cutter!!
Some can emit harmful byproducts like chlorine gas so get that thing vented to the outside.

[moisttowelette]

I just finished watching all of the 12 rotor vids and was feeling blue balls from not getting a dyno number after all that time.

[philmariop]

Consider hard anodizing the rotor. This an option for conventional pistons. Andozing requires different final dimensions to account for the film thickness. Where the billet is light, the anodizing would add a thing ceramic layer to resist heat and abrasion.

[LrdverKill]

"... I look like a liar, and I hate that."

Integrity. That's called integrity and we/"the internet" need more of it. Keep doing what you do Rob.

[johnnygeorgopoulos]

You know Rob, there's been quite a few people who have grafted on FD RX7 front ends as well as rear taillights onto NA and if you pick the correct lips, skirts, and rear spats/diffusers, as well as tossing on the hardtop.... they end up looking like an identical, yet cartoonishly small FD.... especially with some big flares.

You could have a Mini-FD Single Rotor Single just think about the possibilities 👀

[josephmatuszak]

I've done that for a long time Rob. (The oil thickness vs run temp vs thermal exchange) I learned when I was in Okinawa working on diesels (dyno technician and builder) and driving a RB powered 180SX. The hot muggy air was horrible with IAT and Coolers and the low KM speed limits on island. The thicker the oil... the more heat would get retained in the oil... to the point of starting to burn. Whereas when I went to a 15-40w and then 10-30w the average oil temp dropped significantly. Granted this is a piston engine, but the coolers where able to extract a LOT more with the thinner oil alone. It also may just have been my imagination, but the engine felt "more willing" with the thinner oil as well. I was running full synthetic though.
(Side note for the Billet Rotor production, maybe start engineering coatings for extra thermal protection and lubricity retention?)

[tonybrg]

3:30 Rob looking at his new Aluminum Rotor like it's his newborn child has made my day

[gh]

Considering all the weight savings you're constantly striving for, I'm surprised you haven't tried to source a starter-generator yet. Basically replaces the flywheel with a motor. Acts as the starter, and once the engine is running, acts as an alternator. Can also provide short bursts of additional power.
Also you should get with the guys at street bandito and make a carbon subframe. Even if you have to put a honeycomb infill in it, it should still be even lighter than the stamped steel.

[ThePentosin]

The old aircooled porsches was more like oil cooled.
Running the engine cooler overall with a thermostat controlled oil cooler sounds like a good idea. Can use a big oil cooler so you are sure the oil temp is kept in check.

[micah]

please don’t forget that cast (A456-T6) expands differently from billet (7076A) aluminum alloy. you have a ton of tension with your lag bolts (can’t think of the name of them) but i’m willing to bet the billet rotor will have odd heat expansion properties compared to what you’re expecting.

[_mr.boss_]

Missed opportunity to make the Miata pull start😂

[Luminaring]

Because of a single rotor it’s possible to Straighten the secondary ports on both sides of housing to support record horsepower at ultra high rpm.

[michaelreynolds]

And I figure those rotors may be a race only application needing methanol cold fuels to combat heat growth..but heck ya can't wait to see the end results..thanks Rob

[markrutlidge]

I'm more excited about the single rotor than the six rotor for some strange reason . I'd love to see it in a mg midget or similar. ❤Also another yt channel had a single rotor in a Porsche roadster rep and unfortunately couldn't get it to work properly 😢

[shealanmodelmarine]

Even if your not into rotaries what your doing for the rotary world and automotive industry as whole is truly something special rob, been watching since what's it like owning a 20B rx7 and loved the channel ever since!! And helping Marty here in aus was a truly awesome moment! Love your work man, I am even more of a rotary nut now haha ❤

[alexcecil]

Rob i fkn love seeing you start diving into the engineering side of engines. I graduated mechanical engineering school with a motorsports concentration because i love engine science so much so i hope you know im living vicariously through your videos when you go over fun shit like this.
Couple things..
The compression force of your studs will counteract the force of thermal expansion so the plates wont expand as much as that calculator tells you. Depending on the cross section of the rotors, theyll expand at different rates, so it might be more than you think. I bet you've heard of the company called speed of air, and their pistons by now, hopefully! They are in the process of innovatting dimpled pistons and are using ceramic coatings on their pistons to try and reduce heat soak into the piston to maintain heat energy in the combustion chamber... i would highly suggest attempting some sort of cold spray technique to deposit a ceramic or low thermal conductive metal into the surface of the rotor combustion face to prevent heat soak. I bet if you were to measure it, the combustion side of that aluminum rotor is clearanced more than the others maybe with a cold sprayed tungsten surface, you'd get less heat soak and less thermal expansion

[thorsullivan]

There is too much coolness in this video. Lots of history being made by you Rob, your a legend. I would love to see the rotary thrive in today’s world.

[motogeee]

The amount of professionalism in this edit is awesome to see . An the antics going on at the same time is just awe inspiring. 😂

[andersjjensen]

If you can get the 1 rotor balanced and healthy this is going to be THE most fun little go-kart ever. Please don't turn it into a drag racer. Turn it into something you can fling around corners on a track. The body itself has all the characteristics needed for that. A small, light and powerful engine that revs to the moon is what the Miata always needed.