Car Tech 101: Variable valve timing explained

Описание

Few innovations under the hood have become as ubiquitous as variable valve timing. Automakers brag about it all the time, but seldom explain it. So Brian Cooley's here to do just that.

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What Is A V8 Engine? Working 3D Printed Chevy LS V8 Engine EE Shirts! - http://bit.ly/2BHsiuo Recommended Books & Car Products - http://amzn.to/2BrekJm Subscribe for new videos every Wednesday! - https://goo.gl/VZstk7 3D Printed LS3 Camaro V8 Engine Model: https://www.thingiverse.com/thing:1911808 V8 engines operates under the same basic principles as any other gasoline four-stroke engine. First the piston pulls in air and fuel as it moves downward, then it compresses that air and fuel as the piston moves upward. A spark plug fires, igniting the air/fuel mixture and forcing the piston downward. Finally the piston pushes out the exhaust gases on its way back up, before for the cycle repeats itself. In a V8 engine, this cycle is happening in 8 different cylinders, at different times. Instead of multiple cylinders firing at the same time, you want them to be spread out so that power delivery is smooth. For this Chevy V8, the firing or is 1, 8, 7, 2, 6, 5, 4, 3. With 8 cylinders, there is a cylinder firing for every 90 degrees of the crankshaft rotating, which means at any point in time, there are two cylinders on the power stroke. With regards to the valvetrain, the intake air comes from the top of the engine, and into the sides of the cylinder head. The exhaust flows to the sides of the engine, exiting the exhaust valves from the cylinder head. In this LS3 model, there is a single intake valve and a single exhaust valve, though it’s also common to see engines with two intake valves and two exhaust valves. The larger valve is the intake valve, and the smaller valve is the exhaust valve. The pushrod valvetrain gets its name from the metal pushrods which activate the rocker arms which open up the valves. The camshaft, located in the center of the V, has lobes on it which push the push rods up, opening the appropriate valves. For a full explanation of V8 engines, check out the video! Related Videos: Inline-4 vs Boxer 4 Engines - https://youtu.be/mgpDTVBeHOw Horsepower vs Torque - https://youtu.be/u-MH4sf5xkY VR6 Engines - https://youtu.be/6UZRmNXzveQ V5 Engines - https://youtu.be/TsaKRaAIyVE Wankel Engines - https://youtu.be/sd6pJtR4PaY Engineering Explained is a participant in the Amazon Influencer Program. Don't forget to check out my other pages below! Facebook: http://www.facebook.com/engineeringexplained Official Website: http://www.howdoesacarwork.com Twitter: http://www.twitter.com/jasonfenske13 Instagram: http://www.instagram.com/engineeringexplained Car Throttle: https://www.carthrottle.com/user/engineeringexplained Amazon: https://www.amazon.com/shop/engineeringexplained EE Extra: https://www.youtube.com/channel/UCsrY4q8xGPJQbQ8HPQZn6iA NEW VIDEO EVERY WEDNESDAY!

8 месяцев назад
Does Seafoam Actually Work in a Car? (with Proof)

Does Seafoam Actually Work in a Car? (with Proof)

In this video I test Seafoam in a Honda Civic Si. I use a mini borescope camera to look into the engine and see how dirty the engine is before the fuel treatment and then after the fuel treatment. I followed the instructions on the container and seafoam did a great job cleaning a good amount of carbon off the piston head. I am impressed by the results and finally we have proof that seafoam actually works! Here is the fuel cleaner I used: http://amzn.to/2gEa5Qr Here is the borescope camera I used: http://amzn.to/2hiumyG Royal Purple Max Clean Test: https://www.youtube.com/watch?v=BocH2c4mYcc Seafoam in a Lawn Mower https://www.youtube.com/watch?v=WdT4DPFXIkM Here is the Techron Test: https://www.youtube.com/watch?v=h8i9qftqKNY Lucas Deep Clean Test: https://www.youtube.com/watch?v=FLhXqgEEYyI Gumout "all in one" fuel system cleaner test: https://www.youtube.com/watch?v=5SoZnymBSC8 Lucas Fuel System Cleaner test: https://www.youtube.com/watch?v=FLhXqgEEYyI CleanBoost Maxx Test: https://www.youtube.com/watch?v=VDUogAQzLAc **If the video was helpful, remember to give it a "thumbs up" and consider subscribing. New videos every Thursday** -Website: http://www.ChrisFixed.com -Facebook: https://www.facebook.com/chrisfix8 -Twitter: https://twitter.com/ChrisFixed -Instagram: https://instagram.com/chrisfixit -Subscribe Here: http://www.youtube.com/subscription_center?add_user=paintballoo7 -YouTube Channel: https://www.youtube.com/ChrisFix Disclaimer: Due to factors beyond the control of ChrisFix, I cannot guarantee against improper use or unauthorized modifications of this information. ChrisFix assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. ChrisFix recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of ChrisFix, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ChrisFix.

4 лет назад
Top 5: Three-cylinder engines

Top 5: Three-cylinder engines

Brian Cooley runs down his top five powerful peg legs.

4 лет назад
The Future of the Internal Combustion Engine - /INSIDE KOENIGSEGG

The Future of the Internal Combustion Engine - /INSIDE KOENIGSEGG

Episode 7 of 9, The Future of the Internal Combustion Engine Inside Koenigsegg provides for the first time, a look behind the scenes at Koenigsegg and examine how innovation within the highest echelon of sports car manufacturers will affect the broader automotive world. Company founder and principal, Christian Von Koenigsegg, hosts this nine-part series, which was produced at Koenigsegg headquarters in Angelholm, Sweden. In the seventh episode, Christian Von Koenigsegg and Urban Carlson demonstrate their Free Valve technology that does not require a camshaft to run. This engineering is being pioneered by Koenigsegg for future use, but is already running in a Saab 9-5 test mule.

6 лет назад
5 UNKNOWN ENGINES

5 UNKNOWN ENGINES

Thanks for watching.◄ Don't forget to leave a like. Comment below what would you like to see next. Subscribe for more content! Turn on notification so you won't miss any of my uploads. ►Make sure to subscribe◄ www.youtube.com/channel/UCyX9Ny1C-U4VHK0yEaD9K3Q ►Social pages◄ Twitter: https://twitter.com/_Fast_Lane_ Google Plus: https://plus.google.com/+DRAINTVofficial Facebook: www.facebook.com/FastLaneOfficial ►Contact me◄ [email protected] http://www.youtube.com/watch?v=iBwIMl917is http://www.youtube.com/watch?v=u4b0_6byuFU http://www.youtube.com/watch?v=Vj2kuZm-aCA http://www.youtube.com/watch?v=c19kn3drdFU&index=7&list=PLBNzFqmJqPQYPC1pRvCNd6u5mA50g99M2 http://www.youtube.com/watch?v=u0uPmrSRM7w&index=6&list=PLBNzFqmJqPQYPC1pRvCNd6u5mA50g99M2&t=203s http://www.youtube.com/watch?v=o9AecNLjYI4&index=2&list=PLBNzFqmJqPQYPC1pRvCNd6u5mA50g99M2 http://www.youtube.com/watch?v=tZmd7k33JWE&index=1&list=PLBNzFqmJqPQYPC1pRvCNd6u5mA50g99M2&t=172s DISCLAIMER: I'm just a student doing what I enjoy the most which is editing videos. Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing." The materials are used for illustrative and exemplification reasons, also quoting in order to recombine elements to make a new work. The original works were altered quantitatively or qualitatively and the video does not compete with the market for the original works. There were used small portions of the materials in a new context and expression for illustrative reasons only. I do NOT own the video materials and all credits belong righteous owners. In case of copyrights issues before taking action, please contact me immediately.

2 лет назад
How Car Engine Works

How Car Engine Works

Have you ever wondered how a car engine works ?.Well,here it is...AutoTechLabs brings you another presentation on how a car engine works.The video explains the internal structure of a four cylinder engine and also the working of a four stroke engine. Watch,Learn & Don't forget to Like and Subscribe. And LIKE us on our facebook page - https://www.facebook.com/AutoTech-Labs-1646170382327045

3 лет назад
Car Tech 101: Power steering explained

Car Tech 101: Power steering explained

CNET's Brian Cooley demystifies the innovations connected to your steering wheel.

5 лет назад
Petrol (Gasoline) Engine vs Diesel Engine

Petrol (Gasoline) Engine vs Diesel Engine

Help us to make future videos for you. Make LE's efforts sustainable. Please support us at Patreon.com ! https://www.patreon.com/LearnEngineering Have you ever wondered why there exists 2 different engines, Diesel and Petrol (Gasoline) ?. This video is aimed at giving a logical illustration of differences and advantages of diesel and petrol engines. It also answers the questions like, what if I put petrol into a diesel engine or vice versa. Like us on FB: https://www.facebook.com/LearnEngineering Voice-over artist :https://www.fiverr.com/mikepaine

4 лет назад
Car Tech 101: The Atkinson Cycle engine explained (On Cars)

Car Tech 101: The Atkinson Cycle engine explained (On Cars)

http://www.cnet.com/cnet-on-cars/ The Atkinson Cycle engine may be under your car's hood and you'd never know. Brian Cooley discusses the technology and why it's becoming a mainstay in late model, efficient cars. Subscribe to CNET: http://bit.ly/17qqqCs Watch more CNET videos: http://www.cnet.com/video Follow CNET on Twitter: http://twitter.com/CNET Follow CNET on Facebook: http://www.facebook.com/cnet

3 лет назад