Engineering porn, it has been a long time since something made me this happy. Damn this is cool...

Between this and Gale Banks videos I feel like I know more than I ever learned in 20yrs of wrenching at home or with friends in the garage, street or track. Cool stuff.

Several years ago I saw one of those visible V8 engines on an electric motor running 5000 RPMs. I thought having lunch motor twisting and regular engine to collect data would have been a perfect thing but I never had any idea how to develop that. And everybody thought I was crazy for even having the idea so I stopped talking about it. It's amazing to see that idea coming to life through the spintron.

Whats about HEAT? Its differences in cold and warm valve train, especially in tolerances? Cheers from Sweden

Smokey Yunick had one here in Daytona Beach in the 50s and 60s. Peace

That was the best presentation for engine development through data collection I've ever seen on KZfaq. Great work! I long ago stopped thinking that thing's that are "solid" are solid.. Everything in this reality is fluid.

This gave me the same “happy feels” as when I watched the d-sport clip about torque-plating heads to machine valve seats. Great information and continues to show how little I know about engines.

Anyone else get annoyed that university is spelt wrong on the banner behind him? or just me?

Nascar teams have been using these machines for a while now. Sustained periods of time at 9000 RPM needs to be solid this is the perfect tool to test and develop valve train.

Up next: testing electric motors by spinning them with an internal combustion engine ;-)

0.45 I like the sign with University spelt Univeristy......

That was so cool. I had heard of one year's ago but had no idea what it really did. Thank you... New subscriber...

That is the most engaging video I think I’ve ever watched on KZfaq. Good job and thank you.

The information available over the internet is just Amazing!!!! Equal to a concrete college classroom.....and beyond!!

It's awesome when someone takes engineering principals to the next level and actually gets useful concrete data from testing. Like he said many times, now you can have full confidence in designs and not just guess and check.

Amazing explanation of the Spintron and it's applications. Very impressed.

To put it in simple terms. There is so much WIN in this video!

so good ....so much info...great vid!

I had no idea.... I love the level of tech you have in this video!

Excellent video! A view into next level competition engine development.

Awesome work, I have spent some time on the spintron at Comp. And let me tell you the thing will drive you crazy after a day of it screaming away. This is one thing I feel needs testing, and maybe you have done this? But if you look at all your shaft rocker systems, the shafts are always above the shaft C/L so all the bending moment is placed on the 5/16 bolts holding the shafts to the stands. What I always do is re, machine the stands to lower the shafts below the C/L , so now you are puting the stress into the stands and not just the bolts.It would be interesting to see what this does on a spintron at 10,000 rpm with 800lbs of spring load over the nose of the cam?

Probably one of the coolest things to learn on. You can definitely build a beast of a RB on that

Having worked for a company that had its own Spintron, I can say this is a very good video. The uses of this machine are almost limitless.

That would make one hell of an air compressor!

I think this is going to be the best video of 2020 for me

This guy is strong. Best video I've seen in a long long time.

WOW Liked and subscribed here’s the thing I learned today.Thank you

Great technical video hawko.

Wow that was really interesting...., thanks for sharing this great peace of information

But I have heard of a spintron. Used a lot for testing rotating assemblies. I’ve used them for finding harmonic interference in mechanical equipment.

Amazing video! Gotta love that data

Huge step in motor building id love to have one. All the clearance and measurements issiues can be looked at and studied. Then fixed or modified. This is awesome

Im going to watch this video 10 more times this is so kickass

What about the effect that temperature has on the moving components?

that's a badass piece of equipment.

Andrew this machine is a game changer !!!

Takes me right back this vid! We used to do this back in the mid 1990's when i firsty started engine dev for a world famous high performance house! (today, it's all done in the virtual world in software.........)

Love it, back when I was a kid the one age old question was what's the best street/strip cam/ package. A lot of people asking didn't realize everything that has to be taken into consideration My first build was a Maverick grabber with a 302 with ported Windsor heads with oversize 198(I think) and 202 Chevy valves with Forged 12.5:1 TRW high domes on NOS. Did most the work myself at 21. My next build was going to be a 6:71 blown 72 Vega gt with Chevy hemi heads but the older I got the more I liked the thought of slowing down with all electric. Now Tesla, so much for slowing down. That 302 I built probably would have crossed you as a nightmare with those diesel valve guide sleaves pressed into the pushrod holes so I could over port and polish the heads. I could have used this the first few startups to figure out the correct pushrods I needed before I bent a few. My question would have been Lunati or Comp.? I could have spent forever running tests with that....

Very, very informative video - I'm a (D)OHC guy, but many of the principles still apply.

Nice work.

Fantastic Machine !!!!

Good video more like this would be good Thanks

Why does it feel like I have seen this footage before? Still amazing info.

GM Performance build plant had one when I went. Seriously cool stuff.

Love the skill,knowledge,time and effort put in to this. Just a question Do it take in to account the compression and explosion in the cylinder under load can this be programmed into the run cycle

The Nicken’s Mopar NHRA Pro Stock team had a simular system in the early 2000’s, only they used a system of high speed cameras to monitor the valve train, mainly to track how many runs could be made on a set of valve springs before one would break. This set up takes it to the top! Totally Awesome!!

can also be used to find crank deflection, just need to add optic laser on a large disc, with same size disc at other end of motor.

Really intresting stuff!

Very interesting to see and hear it operating as well as the explanation. How do you compensate for cylinder pressures affecting the valves in terms of keeping them on the seats?

Never heard of one, but now I want one

Explained so well, I can guess another benefit of this is to know the properties of different materials working under various conditions to enable modifying those materials for better performance. Trying different alloys for example.

That is really cool!!!!!

Great!!! now I know of another 100 things that i don't know.... btw I loved it!!

Obviously this is immensely helpful. I wonder what impacts the cylinder pressure effects have to the validity of the results?

I wish they had a running LS that would spin up 11K RPM, it would be awe inspiring just to hear it.

Very good video. I was just left wondering have they tested how much heat affect valve stability?

Wow Great tool

Amazing tech

That was cool!

I can appreciate the opportunities this machine creates. The only way to sell these is to make the best ones

the simplest thing cost the most i thought about building a simulator rig fer years no good at code so that was that but me cool to use one on my 5mge n mod it.your rig is sweet good to see that you all did this bloody nice man to see what lazers and sensors and a computers arduno type stuff or 4 can do wen the used rightly in a engine shop

Crazy shit, seen a older version of this but without the superior measuring & control tools

Good idea

Freaking awesome!

Look like the smoketron of Smokey Yulnick.

Learned more about valvetrain motion in 20 minutes than a week of studying.

It's amazing how far you can go to create the perfect engine package. I love the philosophy of "If you can't measure it, you can't manage it". One thing I've always thought about is the lightening/balancing of engine components. In a push rod configuration I wounder if anyone has gone to the lengths of Titanium or even Carbon push rods??

Really good explanatory video about the Spintron. Wonder how much one costs?

John mihovetz,owner of accufab throttle bodies used spin tron too perfect a 4.6 ford to the tune of 250 mph in 1/4 mile👍

You need to test for the valve guide wear and breaking of the ls7 head vs the ls3.

the valvetrain is so critical, technology like this changes everything

As a spec tool at a university lucky students. Opening the doors to mega dollar race teams, and there knowledge base . Nice

This guy is top notch.

Please, bushing vs needle bearing for stock LS rocker trunnion kits......I've been curious for awhile.

Brilliant!! :)

YES! I was trying to find info on these just last week! SO glad you have done this, I would LOVE for average DIY engine builders to be able to have access to this kind of equipment, even if they rent it by the hour. By the way, didn't Smokey Yunick come up with the idea for these before they came into widespread use? Basically so he could check and adjust the clearances on his race engines so they took the least amount of power to turn the rotating assembly?

That is BadAss!

Great technology and will continue to contribute to advancements in engine design, new technology ? not by a long shot, Smokey Yunick pioneered this technology and we lost "the best damn mechanic in town" back in 2001, so a shout out to the man is in order when espousing his technology that is part of his legacy.

This is very cool... are there provisions to be able to test valvetrain motion/behavior with positive (air) pressure on either the intake and/or exhaust ports/valves?

AWSOME MACHINE! Can a Motocycle engine/valve be tested in the machine? Because that would open a big market because its VERY high reving engines and hard on valvetrain

How much power does it take to spin the valvetrain at various engine speeds? That would be interesting to find out. How is that power requirement affected by valve spring rate?

Really interesting, it's hard to find new information when you have been involved in hot rodding since the seventies. I would go to the magazine rack at the story each month and go through every magazine looking for new things to learn. I would buy several magazines each month, and read them cover to cover. I did the same thing through the eighties and nineties but then it started getting harder and harder to get that "fix" of new information. I watched all the musle car TV shows, and eventually they just started repeating the same stuff too. So now I am in my sixties and it's wonderful to see something new and exciting come along. I want to know everyone of those items you mentioned at the end. How much HP does the oil pump take at 6000 RPM? But I have one that you didn't mention but you need some pistons etc. If an engine is actually an air pump then it makes sense to run that complete engine up with intake manifolds and exhaust on and measure the airflow characteristics with different combinations. You could get a headstart on what the best combinations are by how much air flow, air temp and back pressure at RPM, then you go to the dyno to find just the best spark and fuel mapping. How exciting! Can you please let me know how to follow your testing and data? But one thing I find confusing, is why you would want an ECU to control your electric motor drive? I am retired now but I was an engineering manager and if I were to do the project of building the spintron, I would have used a 75 Hp servo with PLC control which would be able to control the acceleration and decel curves to a incredibly high rate, much, much higher than a standard 75 HP motor. Also the resolution of the crank rotation would be much higher than 360 counts per rev however I don't know what the upper limit is now for a digital high speed input. It might have to be only 360 counts at 10,000 RPM. Anyways very interesting stuff. Thank you for posting. (by the way if you want to see a PLC applied to a car you can check out "John's 1975 Formula 400 Firebird" on facebook. Something you don't see everyday)

Smokey Yunick pioneered this machine. It sits in Don Garlits museum in Ocala Fl

Can we add boost to see how those values will react?

A very interesting concept, but I wonder what effect the lack of a compressed gas in the combustion chamber and flowing through the valve has on the dynamics of the valve motion. This is an incredibly useful tool no doubt, but I wonder how well this data compares to an actual in-use valve train.

Awesome, how are they factoring in the changes for real life heat on the parts?

that sound might scare people. it just puts a smile on my face.

Thats gonna be the name of my new techno band SPINTRON"

What about heat, and exhaust pulse. What about air being pulled in, those things affect valves. I really like this machine, it's a nice step forward.

Roush / yates was using this exact machine to build our FORD cammer motors ......in 2005

Could you hook a bottle of nitrogen and some solenoids to each spark plug hole ,to simulate combustion Peak pressures on the non monitored cylinders in order to take crank deflection into the your equation. You could replace the valve relief in the Piston with a laser, transparent port plug , for monitoring valve interactions as you do now.

Wonder how much those numbers change when you start getting into LOADING the valves in an actual engine... You forget, the exhaust valve doesnt just lend itself to just opening on the blowdown cycle. It's physically being held shut by combustion gasses+spring. Theres a reason we use compressed air in a cylinder to hold the valves while we change springs etc.

We'll, I just learned something new today ☮️

It would be all good for diagnosis of engine problems, but what do you expect to do to keep a valve from floating on anything less than all cylinders? You shim for installed valve height so you what is there to do but go to a stiffer set of springs? I don’t see a benefit because the engine isn’t under a load which changes cylinder pressure which helps seal valves and rings under compression. Factory engines are broke in by spinning but I can’t see a benefit other than for a cam break in procedure. Cool idea with the lasers though.

a dude on KZfaq had one years ago used it to break in valvetrain components on high HP engines

Do I have to go to Univeristy to learn how to use this?

Ive heard of the Spintron....but then again, Im nerdy like that👍

I totaly need use this on my turbo lsx im always worried im going to blow it up haja

Sick.

Mind = Blown