So many bits of info I never knew... very cool! (Thank you for the VIIDEO & Research).
@khaliltorku957013 сағат бұрын
FIRE VID. I’m trying to figure out why teams haven’t put more effort into electromagnetic valve actuation?? seems like it would save the need for a camshaft or at least replace it with a computer of sorts that could for sure save space, and hopefully in turn weight as well. do you think it’s just costly, they don’t view the pros to outweigh the cons, or has truly no one been able to figure it out? (that last one i doubt)
@khaliltorku957013 сағат бұрын
Also I just thought of this, but do you know exactly how much pressure is regulated inside the system before the PRV discharges nitro? How much is it designed for?
@tzed250921 сағат бұрын
Thanks for an easy to understand look at pneumatic valve trains, nice graphics too.
@904C5ZOSIXКүн бұрын
Wow! That's some great valve train education. Learn something new every day. 😊
@johnjones928Күн бұрын
There's one small thing you forgot, pneumatic springs don't have the mass of metal springs so as the cam lobe passes it's peak the poppet will actually apply force back to the cam sooner than with a metal spring return more of the initial opening load back to the engine. It also allow a more aggressive closing profile on the cam because the valve follows the ramp better.
@michaelkawasaki47642 күн бұрын
Variable valve springs are common.
@driverjamescopeland2 күн бұрын
For the life of me, I have yet to understand why they don't use this in large diesel engines for road trucks.
@gordonwallin23682 күн бұрын
"Bear" ? Not "bare"? (Sorry, but ....grammar.) Thanks, fun interesting video. Cheers from the Pacific West Coast of Canada.
@Ladyoftheroundtable2 күн бұрын
That is a jet btw. All you need to make a jet is a length of heated pipe, fuel, and air. Well, we call it a jet, but if Im not mistaken, it's classed as a rocket.
@I_feel_just_like_a_rockstar3 күн бұрын
Thanks Renault.
@NeurodivergentSuperiority3 күн бұрын
After seeing Drivetribes heavily dissapointing video on the Mazda Furai, it's sweet seeing someone who actually cares about cars enough to go as far as to debunk myths, thank you so much!
@andrewh.84033 күн бұрын
I remember the first time I climb into a Mini as a kid. I said, it's like a TARDIS. I was amazed.
@dougg10753 күн бұрын
Cool
@kadiummusic3 күн бұрын
And they sound crap. F1 sold it's soul and threw away the greatest soundtrack in sport. Very sad. 🙁
@AliBaba-od1dz3 күн бұрын
Smart, thanks for the good infos .
@danylo95963 күн бұрын
this "rocket" is more like combustion chamber in turbojets
@lebojay3 күн бұрын
History lesson ends and explanation starts at 5:40
@fidelcatsro69483 күн бұрын
We need to develop rotary valves for IN and EX, those will require only a fraction of the torque needed to operate
@joshjones34084 күн бұрын
Is there an other kinds of gases that have been tried???
@joshjones34084 күн бұрын
Big rock hammers like that go on big trackhoes...450 or bigger...that rock hammer has a nitrogen filled bag that can develop 80,000 pounds in to the bit that hits the rock...that bit Takes three men just to roll it around....
@joshjones34084 күн бұрын
Valve float....chey bad about it at higher rpm spring just can't bounce back fast enough.... cause loss of valve control which leads to rpm loss or whores
@Lucky_zeven4 күн бұрын
Modern f1 engines dont rev over 13k rpm. Bmw first winners turbo charged championship. Rotax 2 strokes rev 25k. Try to be coherent plz. Ty🎉
@shveylien74014 күн бұрын
Pressurized coolant. Very interesting. I like how one guy makes a turbo into a jet engine with remote ignition chamber and puts it on a gokart, while rally teams do the same thing but attach it to an air pump and drivetrain.
@theberengersniper5 күн бұрын
Great video, and an enjoyable watch, although I think you've compressed Volvo's entire BTCC engine programme into just the 850 estate years. That wedge-shaped head didn't see its ultimate evolution, and 300bhp+ output until the 1998 season and it was in the S40 by that time. I think you're probably citing the same document I read though, with Charlie Bamber in Race Car Engineering. It's interesting that the original cylinder head design was settled upon because it meant opposing valves could be machined at the same time, and not for any good performance reason. Again, an excellent video.
@everyday80sdude865 күн бұрын
F1 is dying
@mrd.8085 күн бұрын
The f1 engine is designed to rev that high. Same as motorcycles designed to rev higher than car engines. The reason is that torque is not needed for f1 engines, i.e. racing up a hill or up a very high mountain pass plus being very lightweight racing cars property all F1 cars nowadays are under 1 ton (2000 lbs). Most FIA F1 tracks have very little elevation changes. Spa has the most elevation changes 102.2 m. However, there is no clue if the slopes are a gradual rise or a sudden/fast rise. Maybe someone has information and can share slope ratio information for Spa.
@marcopontil16995 күн бұрын
Why not a Desmodromic setup ?
@djilu99165 күн бұрын
so its a pulse jet?
@cagaming78485 күн бұрын
Rocket = polsjetengen
@karlroebling33165 күн бұрын
Why not pipe engine exhaust pressure thru check valve to fill valve chamber?
@gr18.n1k5 күн бұрын
Why don’t the factory make the stiffer sway-bars? What is the negative side of the harder sway-bar?
@TylerLacey-bi8ey6 күн бұрын
My favourite is v8 Supercars
@Tom-nx6ev9 күн бұрын
Why no mention of desmo?
@someuser8289 күн бұрын
I think I know what film I'll be watching later on this bank holiday Sunday...
@chrisbaker290310 күн бұрын
Those 1.6 liter V6s only turn about 6500 to maybe 7000 rpm. Watch any formula 1 race where they show the engine rpm and throttle application as well as what gear the cars are in. The V-10s that used to be the engines are the ones that turned around 18,000 rpm. But they didn't have the turbo chargers nor the battery assist that the modern F1 cars do. The pneumatic valve trains have been in use for decades.
@Operationhodl10 күн бұрын
Great video. Picked up a GR86 Trueno. Love what today is doing with the line up. Also have a 2007 FJ Cruiser TRDSE with over 300k miles and going strong.
@Angel_PC11 күн бұрын
Amazing history, narration and explanation! These wonderful videos deserves our like, comment and gratitude. 100/100
@DennisMerwood-xk8wp11 күн бұрын
This Kiwi's favourite Roger the Dodger story. He went to McLaren in the UK in 1967 and talked Bruce into selling him a CanAm McLaren. An M6B I think. McLaren was not selling customer cars at this time. So old Rodger probably emptied his pockets! LOL He took it back to the States and spent another two fortune's on it. Americanizing it. That is, chroming everything, painting and pinstriping everything. In the first race in 1968, he showed up with his baby and parked it next to Denny's car. Bruce's and his boys efforts over the winter. Their completely new version, M8A, hurriedly given a splash of papaya orange paint. And easily 20-seconds a lap faster than the Penske and Donahue's Sunoco trailer queen.
@ziggystardust462711 күн бұрын
Sorry, but you hit one of my sensitive points. A spring fatigue failure is not like bending a paperclip until it breaks. A paperclip breaks because you are plastically deforming the metal (stressing it past its yield point) and this causes work hardening, embrittling it. Fatigue failures are cyclic failures of a material that has been stressed below its yield point (you haven't plastically deformed it), but causes accumulated damage. These are two separate failure mechanisms.
@jasonholdren389612 күн бұрын
I have ADHD and I really enjoy technical videos
@lorddoosworth817513 күн бұрын
Is that a precision fabritcated inconel rocket tube in your pocket or are you just happy to see me? 😏
@epicon614 күн бұрын
This was so cool!!!🎉 I love racing engines so much! Please cover some V12 race engines someday❤
@xostler14 күн бұрын
3D printing rockets could open up some creative possibilities. Like the 3D Tesla valves in the new rotary combustion engines from NASA could be an interesting
@albertmarion983717 күн бұрын
Very informative!
@gwcrispi17 күн бұрын
When Penske's IndyCar program got busted for cheating recently you heard people saying "that's so unlike Roger Penske, he's above that". I was like "What Roger Penske do you know? Penske has been pushing the rules for decades now."
@davidmichael259418 күн бұрын
No coil bind & valve float
@arx351619 күн бұрын
When Agassi still had hair
@stianmoltubakk23220 күн бұрын
Renault did not invent pragmatic springs. It was used way earlier in low speed marine diesel engines.
@timothyfalkowski600721 күн бұрын
the lower pressure at low lift, means the valve seats are not slammed and beaten to fail.