How do cars work? It's a simple question, without a simple answer. That's what this channel is for! You could search the web endlessly for consumable information, or you can watch my simple to understand videos. I'm a graduated mechanical engineer with a passion for cars, and my goal is to help other people passionate about cars learn how they work. Hope you find my videos enjoyable; feel free to ask questions! New videos every Friday. Jason Fenske - Channel Owner - Engineering Explained
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Porsche Has Patented A Completely New Engine Design - Six-Stroke Cycle!
New Porsche 911 Engine Explained - https://youtu.be/o3Q_tm5BTrY
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Porsche has patented a revolutionary new engine with a six-stroke combustion cycle. Essentially, the engine is combining both a two-stroke and four-stroke engine into one, taking the individual advantages from each. In this video we'll deep dive into the engine cycle, how it works, what the differences are versus four-stroke engines, and what the advantages and disadvantages are. Hopefully we see the engine land in a production car, as it's unique firing interval will likely sound incredible.
References:
6-Stroke Patent - https://patents.google.com/patent/US20240301817A1/en
2-Stroke vs 4-Stroke - https://www.researchgate.net/publication/360694755_Study_on_Engine_Performance_and_Combustion_System_Optimization_of_a_Poppet-Valve_Two-Stroke_Diesel_Engine
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Combustion engine valvetrains have evolved over time. While flathead and overhead valve designs were more popular in the past, most modern engines run overhead cam designs.
Sponsored by Mobil 1 – https://www.mobil.com/en/lubricants/
Three common combustion engine valvetrain designs are flathead, overhead valve (OHV), and overhead cam (OHC). Many older cars have engines with flathead or overhead valves, and these designs also tend to more commonly used flat tappets for actuating the valves. Flat tappets place a unique demand on the engine and engine oil, as this is a high heat, high pressure, high shear stress location of the engine. Without an oil film, you’d have the quickly moving metal of the camshaft sliding against the relatively stationary tappet – a recipe for lots of wear. To combat this, oil additives like ZDDP can be used to minimize wear, by creating a sacrificial layer that wears instead of the cam and tappet. That’s why Mobil 1 Classic, formulated for classics and collectibles from 1951-1996, has more ZDDP than modern engine oils, to help avoid the unique wear challenges of older engines.
Modern engines take advantage of roller tappets, which allow for more aggressive cam profiles, and they require less ZDDP in the oil, because the rollers reduce friction between the cam and tappet. Check out the video for all the details on how engines and engine oil demands have evolved over time.
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This motorcycle won’t fall over! Yep, Honda created a motorcycle that you can sit on, even stopped, and you don’t need to stick a leg out to stay upright. Short fellas rejoice. How does it work? Surprisingly, there are no gyroscopes involved; it’s all done with a combination of steer-by-wire and an adjustable trail length. A bike’s trail length is the distance on the ground from the steering axis to the center of the tire. For high speed stability, you want a positive trail length; this means the tire wants to track straight at speed, much like driving a car. But at low speeds, this bike can actually shift the steering axis behind the tire center, creating a negative trail length. So now, thanks to steer-by-wire, when the front wheel pivots into the direction of a fall, the tire pushes the bike in the opposite direction, keeping it upright. Or, you can just walk, with the bike following upright behind you; that way there’s very little risk of falling off your bike!
No Fall Motorcycle (Full Video) - https://youtu.be/zY1l6FdNgfA
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Yamaha has created a hydrogen V8 combustion engine for boats!
Big thanks to Yamaha for sponsoring this video!
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Yamaha brought the world’s first hydrogen combustion outboard motor to SEMA 2024! Yamaha is developing the hydrogen V8 engine, Roush has designed the fuel delivery system, and Regulator has adapted their 26’ hull to accommodate the unique powertrain. Three large hydrogen tanks store gaseous hydrogen at 700 bar (10,000 PSI), providing the fuel pressure for a 100 bar direct-injection system into the 5.6L V8 engine. I spoke with several of the engineers involved, so in this video we’ll deep dive into the project, covering the following questions:
1. What is hydrogen combustion?
2. How does Yamaha’s prototype boat work?
3. What kind of range can a hydrogen boat get?
4. What are the unique challenges for hydrogen boats?
Related Links:
Yamaha Outboards - https://yamahaoutboards.com/
Roush - https://www.roush.com/
Regulator - https://www.regulatormarine.com/
References:
Yamaha XF450XSA - https://yamahaoutboards.com/outboards/xto-offshore/v8-5-6l/xf450/pb_reg_26-xo_xf450xsa_09-01-2023_occ
Gasoline vs Hydrogen - https://youtu.be/l6ECwRnJ0Sg
Hydrogen Fuel Tank - https://s3.eu-central-1.amazonaws.com/hexagonpurus-website/Type-4-Mobility-Hexagon-Purus-Datasheet.pdf
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Volkswagen created what they’re calling the Budack cycle, with a unique twist on the typical four-stroke engine (intake, compression, power, exhaust). During the intake stroke, the intake valves close early, so the piston keeps moving down, but no additional air is coming in. This reduces the effective compression ratio, because there’s less air and fuel to squeeze down. During the power stroke, the engine essentially has a longer distance for the piston to move down. That is to say, the expansion ratio is greater than the compression ratio, thus allowing the engine to get more useful work out of the air and fuel burned, improving efficiency. It’s very similar to the Atkinson cycle; both allow a limited amount of combustion gasses more room to grow.
VW Budack Cycle (Full Video) - https://youtu.be/JjM14JBPdBI
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2025 Volkswagen ID. Buzz – Worth The Wait Or Overhyped?!
Get the Soocas NEOS II here: https://bit.ly/3ALsVTT
Sponsored by Soocas. Subscribe to EE: https://goo.gl/VZstk7
The 2025 VW ID. Buzz has arrived in America, the first fully-electric option for those in the market for a minivan stateside. The ID. Buzz features a 91 kWh battery, and comes with either RWD – paired with a 282 horsepower rear motor, or AWD – paired with an additional motor up front, and a combined 335 horsepower. The models have an estimated range of 234 and 231 miles, respectively, though we’ll do our own range testing to find out how far it can really travel on the highway (at 75 mph with climate control on). We’ll also test the charging speed as well as 0-60 time. As we review the ID. Buzz, we’ll focus on the exterior, interior, versions offered, battery & range, charging experience, performance, interior controls & infotainment, navigation, how it drives, price, and summarize it all with major takeaways.
The vehicle tested in this video is a 2025 VW ID. Buzz 1st Edition RWD, with an as tested MSRP of $67,045.00. Packages and options selected include Energetic Orange & Candy White exterior, “Dune” interior w/ leatherette, and a 91 kWh battery.
Soocas Product Links:
Soocas Website – https://bit.ly/3ALsVTT
Soocas Amazon – https://bit.ly/3ALr2GN
#BlackFriday #BlackFriday2024 #Soocas #SoocasNEOSII
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What is a money shift? With a manual transmission, if you want to accelerate as fast as possible, you typically shift at redline. Let's say you're at redline in 3rd gear, and about to shift to 4th gear. If you pull the shifter back, but accidentally put the transmission in 2nd gear instead of 4th, as you let out the clutch the engine RPM will launch way above redline. This is called money shifting, and it happens because your vehicle speed is too high, and you accidentally selected too low of a gear. Since engine isn’t meant to rev above redline, you can have valve float, and if it's an interference engine this condition is catastrophic, as the piston hits the valves. Goodbye internals.
Money Shifting A Nissan Z (Full Video) - https://youtu.be/p9SbDvMhCFs
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Is Tire Technology The Key To Today’s Incredible Performance Cars?
Check out the ExtremeContact Sport 02: https://bit.ly/3Ulidu1
Big thanks to Continental for sponsoring this video!
How much of the performance jump in cars over the past 10-15 years could be contributed solely to tires? You might be surprised how much of a role the vehicle actually plays, so in this video, we’ll answer the question: what’s faster, an old car running new tires, or a new car running old tires? The results will come from pitting a 6th generation Volkswagen GTI against an 8th generation GTI. The new GTI will be running tire technology from old GTI’s era, and vice versa. For clarity, both sets of tires are brand new, manufactured within several months of the testing in this video – it’s a comparison of tire technology, not tire age.
Both vehicles will be running the exact same tire size, with the same treadwear rating, the same loading index, and the same wheels. The difference? A two generation gap in tire technology, with the older ExtremeContact DW going against the newer ExtremeContact Sport 02. To evaluate the difference between old tech and new, we’re going to be looking at wet and dry lap times, as well as both wet and dry braking performance.
Related Videos:
Could A Tire Last 100,000 miles? https://youtu.be/hvIcVmSzSEg
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I Bought A 2024 Toyota GR Corolla Circuit Edition - My Favorite Hot Hatch!
Check out the ExtremeContact Sport 02: https://bit.ly/3Ulidu1
Big thanks to Continental for sponsoring this video!
When I first drove the Toyota GR Corolla, I knew it was special. Now, I have one of my own - a 2024 Circuit Edition in Flame Blue! This spicy hot hatch features a 1.6L inline 3-cylinder spitting out 300 horsepower and 273 lb-ft of torque, a 6-speed manual transmission, and a sophisticated AWD system that can vary the front/rear torque split from 60:40, to 50:50, to 30:70 - enabling a front or rear biased driving experience! The Circuit Edition features some special touches, like a forged carbon-fiber roof, a larger rear spoiler, and this exclusive blue color. The video will cover the following questions:
1) What's so special about the GR Corolla?
2) How does the GR Corolla AWD system work?
3) Why did I choose the GR Corolla over the Golf R or Civic Type R?
4) Why not pick up the new 2025 GR Corolla?
A big thank you to Continental, XPEL, and Elite Window Tint for their support! You can find related links below:
Elite Window Tint - https://elitewindowtint.net/
XPEL PPF - https://www.xpel.com/products/paint-protection-film
ExtremeContact Sport 02 - https://bit.ly/3Ulidu1
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BMW used water to make an additional 50 horsepower! You read correctly: the BMW M4 GTS has a turbocharged six cylinder engine with water injection! Under most operating conditions, the water injection system isn’t used; the engine operates like any other gas powered turbo engine, and is capable of producing 444 horsepower. However, when the engine is above 5,000 RPM and you floor it, three water sprayers inject water into the intake manifold. This water evaporates, cooling the air around it, reducing intake temperatures. Cooler air is more dense, and it means less risk engine knock, so you can crank up the boost and advance ignition timing, increasing the power output to 493 horsepower - that's nearly 50 additional horsepower!
BMW Water Injection (Full Video) - https://youtu.be/PhShcJZ3JAk
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