These two presenters are absolute pro's. The way they discuss the technical topics seemingly without cuts in their dialogue and seemingly not reading from a teleprompter with zero mistakes is impressive to say the least.

3:30 Sam always looks so happy anytime Craig pulls out his homemade props. Such a great duo.

Now this is why I'm interested in F1, not the guys driving the cars, although obviously the drivers competition is interesting too, but the technology is beyond incredible. I could watch this type of content all day every day! Give me more of this please, and I don't often ask for much, but this, I'll pay for!

I love this info! These segments are great! I would say, that most road cars are around 10:1 petrol compression ratio and 16:1 - 19-1 diesel compression ratio. So a 18:1 compression ratio for a petrol engine is just bonkers!

Ohhhh yeah, solid engine nerd out. Loved this one guys

I was never too interested in the really techy stuff of F1 until we got these two together. Two completely diff individuals with great chemistry between them. I'm going to enjoy watching them teach us about the new cars next year as the teams develop them

I love this neerdy stuff. Keep it up.

7:1 for a road car CR Sam? You look so much younger than 70. 😎

I work for a diesel injector test equipment manufacture in the UK, and commerical vehicle tech is actually amazing bits of kit, the engines and systems are efficient and have long service lifes.

Honda CVCC 1970's Civic and Accord engines had pre chamber to ignite a weak mixture. They passed emissions regulations without a catalytic converter.

Nice to see Phil Collins is doing well.

When Sam talks about the forces causing deformation... it's wild. I witnessed a motor blow in a friend's race car where the piston rod twisted and pulled apart. Didn't make you think of a piece of solid steel or aluminum.

This is excellent! We need more of these high level technical talks!

If Valteri had a wdc for every engine he took he would have been the 2nd most successful driver to Hamilton and Schumacher

Valtteri receiving one after the other: Traditions

Shout out to the big homie Sam keep doing it

Brilliant show, I would love to see longer segments, these guys have great chemistry and always have interesting information on current tech.

Fascinating vid and great knowledge too from the best! Keep it up!

Keep up the education of F1 Tech mahalo

EXCELLENT work gentlemen. This is by far the best source of information for F1. 👍🇺🇸👍🏁

That conrod would take 12 metres a minute worth of stretch/compression at 20k rpm if it was linear. Yowsers.

Thank you f1 for these tech talks! Really amazing to watch!

That is mad how different that looks to a normal piston.

Statment from Mercedes: "We had to give Valtteri new ICE because we discovered one piston has gone missing from the engine after leaving Turkey 👀"

Super team. Nice chemistry. Could watch these for hours..

Thanks for Making F1 Techy Stuff all the more Interesting... waiting for more Tech Talk content 🙇🏻

Best F1 content out there. Thank you very much.

Fascinating info regarding the pre-combustion process. Thanks!

Awesome piece. Thanks, gentlemen.

amazing content thanks for sharing hopefully one day I can do the research, keep sharing love it

Such an amazing and engaging information

So interesting & these guys are so knowledgeable. Top Pros !

Was wondering the other day how long a modern V6 Hybrid era engine would last in a conventional car on the road without any use of the MGU.

Outstanding in depth look at current F! Cylinder technology.

The f1 engine is a piece of art.

Keep making these. Please

Love Sam Collins ❤

*Love this. Waiting for the sequel.* (let's burrow the old Honda McLaren engine maybe?).

more of this please

I’m surprised these guys know the names of these parts; “slammy uppy bits.”

CVCC scarbs remember, honda road tech from the 70s!!!!

In the 80’s the compression was 8.5:1 in road cars, now its reaching 12:1, not that far from f1, certainly not 7:1 as he mentions

Take a drink everytime Sam makes a pun, and another one when the co-host has to fight back a chuckle.

This is nuts, fantastic stuff

Great video guys

This is simply excellent 🙌

2.5 TONS.... goodness, that really illustrate the immense force in those engines. Now I do understand why those engines are so expensive and can shred a tire in a single lap.

7:1 in a road car? Maybe in the 1960s... 9.5:1 in turbo applications is common, 12:1 in NA applications.

Beautiful video

Great insights!!! Would be cool to see some animations too.

Best Tech Talk yet!!!!!!!

Pre chamber is a technology straight from early diesels from 1950 up to 1990 when most car makers switched to direct injection and then common rail.

Great tech talk

Wathing these guys is just a great comedy ..love them n their insights

Brilliant video, much better than the fuel video.

7-1 compression ratio in the road car? Maybe in the 1950s

Do other parts every week, that'd be the best 👍👍

7:1 for a road car? Cars haven't been that low since the 80s when turbocharged cars were first getting popular. 9:1 is about the lowest you'll see and 13:1 is about the highest

Great video!

would have liked to see a normal road car piston next to it so see the difference... nice explaination though!

Sam Collins could tell me a bed time story and I'll be out in a second

MORE episodes like this one!

You should had asked AER for a F1 turbo V6 piston, they had a single cilinder testbed for some manufacturer...and used their tech to get their lates LeMans V6 engine.

would love to see top gear with these lads

Engine sound is awesome nowadays 👌👌👌

Back when the V10s were still in force, I often used to say the solution to the ever increasing upper rpm limits was not a mandatory rev limiter, but rather, a mandatory minimum conrod/piston weight. Why? If you force that combination to be heavier and heavier each year without a rev limit, the motor engineers have a dilemma - they can still go for revs at the risk of engine detonations. In terms of engine note, I personally felt 15k rpm was the sweet spot for a V10, maybe 13k rpm for a V12.

I want a 90 Minutes Special Tech Talk with Sam and Craig together. - On a weekly base maybe? ... I could listen to that talks for hours.

I love this stuff.

What ??? so interesting guys.. awesome insides

Seems like something that's worthwhile in today's cars. E85 with direct injection can probably run 18:1 for a daily driver. Mazda already runs 14:1 with 87 octane. If it's really that high efficiency, seems worth it.

Please explain the mercedes rear suspension!

18:1 compression ratio for a petrol engine. MAD.

Sam is such a nice addition to the F1 crew line up ^_^

Quality content.

I don't know why, but this is just so fascinating to me how a piece of metal can withstand 2.5 tonnes of pressure. F1 is just so interesting to me.

this nerd session was amazing

Thanks as always Moss

It's so sad that they are not allowed to experiment with compression-ignition. F1 and motorsport in general were normally the testing grounds for new tech (or adapted tech) for our road cars. I mean, it's not only the mechanical parts that are important here, but the chemical parts too, i.e. fuel, oil, tyres, etc. Imagine how awesome it would be to have compression-ignition for petrol engines as well. By letting manufacturers research this in the sport environment takes the burden off of the R&D in the commercial environment which will accelerate R&D in general because of the resources available in the sporting side of the business. It's a free test bed to see how stuff can run in the real world. This could also spark more manufacturers to enter the sport since what they are developing in F1 can have a direct impact on their car sales. Tell me if my head is in the clouds dreaming of it as an ideal scenario instead of how it really would be. I REALLY want to see F1 tech in everyday road cars

I want a 24h video of them !

What road car is 7:1 compression ratio?

Could somebody explain to me how the piston does not wobble about the axis of the gudgeon pin given how close together the piston rings are?

You 2 are my favorites

Nice IWC big pilot!! Get in there Sam

so what piston they use now, steel "honeycomb" full of oil passages?

could we have an episode about the rear suspension of the Mercedes compared to other cars? 🙄🖖

This reminds me of J.D.M. masters K-tech video.

Thought he opened with "There's been a lot of torque about power units" nice wordplay

I would like to see more about the cylinder head and valves actuators...I'm almost sure that F1 engines does not use camshafts

What makes the Mercs and RB's faster ? and what can the other cars do ?

The Batman and Robin of tech talk.

Techity tickity talkity yay!!!

Through the magic of two of them ...

Are you going to talk about merc's moving rear suspension?!

Just make this a Netflix original already and get this guys 10x bonus it takes a lifetime you get the knowledge they have

A reliability fix, will always result in a performance improvement, because you are simply able to turn everything up a notch.

Future Tech Talk episode on DRS? Some of the big points would be DRS failures leading to the wing being stuck open, and how that affects the performance of the car. Seeing as we will be loosing that with the start of the next season, it would be great to learn a bit about it before it's gone.

The modern combustion chamber is essentially a technology that Honda developed in the late 60's? This pre-chamber must be similar in design to what Honda's CVCC was.

yay they got a desk

Prechamber sounds like the old Honda CVCC engine

Iron based alloy, so tungsten is likely used in the alloy.