Hyundai Veloster N - The Science EXPLAINED

ready, your votes, what do you mean? What do you think? I'll let you roll around in Hyundai's new Veloster and it might be this weird looking hot hatch, but we here at donut noticed that it's been causing a bit of a stir about the car. world and that's because it's good so I did a little research on this obscure three door hatchback and why there is a growing following for this car so today we're going to talk about the Veloster and the technology behind some of performance features that Hyundai has managed to make what many call a driver's car.

There's some German DNA under that hood. Let's go look for it. We'll see a side DNA scraper. Wouldn't it be nice for you to have your own American-made supercar? The 2020 Corvette CA is one of the coolest cars released in quite some time. What's even cooler is that you have a chance to win one and support a great cause while our amazed friends are offering you a chance to win a 2020 Corvette Stingray z51 with tax and shipping included and if that's not enough, you They will give $20,000 cash for you to do whatever you want with it, all you have to do is go to Omae's comm bar and that's it. enter for a chance to win, the best part of all of this is that every donation supports an organization that means a lot to the donut media family and me, and that is the Ronald Reagan UCLA Medical Center, it was their job to which helps save the lives of our I own the James pump for free and that's why we love them there so click the link or go to the Omae communication donut and make a donation right now.

Thank you very much for your support. I love them so much now that the engineers were building this engine. They were told that the final program bigwigs wanted to give the driver the feel of a naturally aspirated engine even though it had a turbo, so why would they want naturally aspirated engines to have smoother power delivery at all? tire motors? Rev range with a turbo engine, those turbos take a while to kick in and can make the car feel harsh when you accelerate, so they approached this challenge in different ways, one by using a twin scroll turbo.

You've probably heard of it before, a displacement is just a fancy word for pipe and is the part of the turbo that is used to transport the exhaust gases from the exhaust manifold to the turbo drive wheel and unlike a turbo single scroll, if we look Inside a double scroll it has exhaust inlets and those inlets are combined with an exhaust manifold that is also split and is designed that way for a very special reason: the car's exhaust comes out and pulses that matches with the firing of each cylinder and each time. An exhaust valve opens, the air leaves that cylinder towards the exhaust manifold and the exhaust pulses coming from the different cylinders can overlap and that is not good because for a brief moment, when the exhaust stroke of one cylinder ends and the intake stroke of another cylinder ends.

At first it might actually cause the exhaust to flow backwards into the cylinder, and that's not good for a spinning turbo, it creates a backwash effect, but if you're clever and design an exhaust manifold that separates the gases from exhaust coming out of those overlapping ignition cylinders. You wouldn't have to worry about the exhaust pulling the turbo now on a four-cylinder engine like the Veloster and it has a firing order of one, three, four and two, and if we connect the exhaust manifolds from cylinders one and four and cylinders two. and three, this means that when cylinder one is finishing its exhaust stroke, cylinder four is firing.

Now the exhaust streams coming from those pairs of cylinders take separate paths to the turbocharger and enter different Scrolls. They both spin the same turbo wheel but the exhaust doesn't. mix so what does all this geri-beri mean? Well, it means you can get quicker boost response, reduce exhaust losses due to mixing, which we just talked about, increase turbo efficiency and increase power throughout the rev range, bingo-bango janggo . We are on the way to providing a more naturally aspirated feel to the driver, so that is the first way they address the demand to create a safer aspirated engine feel, but wait, there is more, secondly they wanted to increase the limit of revolutions, now generally turbocharged.

Engines generate more torque in the lower rev range and naturally aspirated engines, on the other hand, generate more power in the higher rev range and there is a long explanation as to why, but I will try to simplify it now, usually with a smaller turbo setup that suffers. some peak power as the engines rev or higher, that's because the turbines inside that turbo start to choke the engine, they can't spin any faster even though the amount of exhaust being pumped out now increases, which Funny thing is that a turbocharged engine is likely to still be more powerful than its naturally aspirated sibling at high speeds, but the shape of that torque curve means you feel the power output decrease with an increase in engine speed at Instead of boosting like in a naturally aspirated engine because the important words, one of the engines feels more naturally aspirated, they increase the rev range to 6900 rpm, smoothing out that power curve by using a larger, more efficient turbo, now a side note for my super nerds, it's not that turbo engines can't have higher redlines, it's just that the engineers who build these engines know that they get most of their power in the lower range, so there's really no point in raising that limit if you're not getting any performance gains on the intake side.

The Veloster has a valve control module, so to explain this, let's take a little field trip, get in the back of the old Jerry bus and do a little. Jerry and I, the engineer, did an experiment, come on, come with me, hey. Guys, welcome to Jerry's garden to show you how a valve control module works. I have this hose right here, imagine this hose is air and it comes in through the inlet, right, the air just comes out like this, imagine my finger is the plate and the plate. It's inside the intake ducts, but when I put my finger on the air, like that, it starts to disperse, it creates more turbulent air and that means it's easier to burn out the engine, than anything else that makes this philosopher and such a car.

The fun thing is that you can close two Fifty with a 6-speed manual transmission. Yes, you can opt out and get a seven- or even 8-speed dual-clutch transmission if you want, but Hyundai didn't want to take away the option for what drivers loved most, which is making a little noise in the gears. and even put in a little technology to make the six-speed manual transmission even better. It's probably one of my favorite pieces of technology in this entire car and that's rev matching. Now, rev matching is the technique of smoothly downshifting by increasing engine speed before engaging the clutch to allow for a much cleaner gear change and is surprisingly used in racing, but is still useful when driving on the streets and it's fun.

Do the reason you do it, it reduces stress on the engine, prevents an aggressive forward weight shift when downshifting, and reduces the amount of wheel lock. He doesn't know that locking the wheels helps him sleep. Well, lock these wheels now. With the Veloster you can actually do this for you if you want, with the push of a button the car will automatically accelerate for you to increase the revs as you slow down to a lower speed. This is great for any car, let alone a Hyundai. and yes the 370z does it, the civic tech car does it, but they cost more money and it's cooler when it's cheaper, so thanks to McLemore for that's that song, what's the name of a thrift store?

I'm cool, another cool engine or engine related technical piece. pop-pop-pop pop-pop-pop pop-pop-pop the Veloster has an active exhaust system, a throttle valve and the exhaust pipe is controlled by a servo motor that turns that valve and when the valve is only partially open silences the exhaust for more silence, but in sport mode the valve is open on the exhaust and it is allowed to flow freely increasing those sweet exhaust sounds, not only that but you also hear those nasty pops and crackles, those pops are they do when there is a detonation that echoes in the exhaust and In racing cars this usually occurs when unburned fuel hits the hot exhaust, but in the case of the Philosopher's and you have a detonation that occurs earlier in the system and then reverberates through the exhaust, it comes from the factory like this and you can alter it.

I don't want those pops to press the button, it goes silent, you want, you want to show off to all the women, pull into a stop sign, you know, women love those pops, the bigger the pop, baby the pop , I think they called the notorious big daddy Alma, man, so we have a peppy engine with some sounds, it sounds like a race car, Jeff, what's up with the handling of the Veloster and how did the engineers improve that aspect? It's all in the electronics. Now electronically controlled suspension has been around for a long time. We could do a whole episode on suspension engineering in theory, but for the sake of this video, I'll do a quick explanation like I'm eight years old now.

Shock absorbers and struts are in the simplest terms they are just oil pumps, they are designed to dampen spring movement and stop excessive rebound and sway and inside a shock absorber there is a piston attached to the end of a piston rod which works against the hydraulic fluid and as the suspension goes up and down, the hydraulic fluid is forced through small holes inside the piston because those holes only allow a small amount of fluid to pass through, the piston decelerates which in turn It slows down the movement of the spring and suspension quite a bit and what makes this design so ingenious is that they automatically adjust to various road conditions, for example the faster the suspension moves.

The more resistance they provide, the harder it is to push that fluid through the small hole faster, which in turn provides more damping resistance. The spring is what prevents the shock from hitting bottom. Now electronic struts have a small electric actuator motor mounted on the top of the unit or inside that opens or closes those little holes in the piston valve and this changes the stiffness of the shock as it goes through its stroke, which in turn change the way the car handles the Veloster. It has multiple modes that allow changes in how stiff and soft the suspension is now when you're on the track, for example, you want your suspension to be stiff, you want to keep the power to the ground and you want to avoid body roll, But when you're driving on Los Angeles streets or terribly maintained gravel roads or wherever there are a lot of bumps and potholes, you want your suspension to absorb all those bumps and make it smoother, but there's even more text: There's a module control for the electronic shock absorbers that takes data from the wheels and a positioning of the body of the car and even the brake system and then monitors that data and then adjusts the suspension to reduce the squat when braking, which goes like this, to control roll in corners, this way, and to limit the amount of rear-end compression during hard acceleration, this way. pretty cool tech coming out of a Hyundai now the second part is the speed LSD man wonderful man far away all the guys shoot up man I'm just kidding LSD stands for limited slip differential in the e stands for electronic and an LSD among other things limits them When the wheels don't spin under power, it redistributes the power to the wheels with the most grip and they do it mechanically or electronically or a little bit, and you want this because you want to maintain proper traction.

It's pretty obvious and the Veloster continually monitors the inputs to various wheel sensors and if it detects slippage of any of those wheels, it will transfer additional torque to the wheel with the most traction, which improves traction when accelerating out of a corner, for example. example, and it also helps maintain stability and again with the push of a button you can alter how aggressive those settings are. I mentioned before that this car has some BMW M DNA under the hood and that DNA is from this guy, Albert Biermann, he was a former BMW racing engineer and head of BMW's M car division.

But now he is Hyundai's head of R&D at the brand, as he is responsible for some of the best cars ever made when the brewers began developing the Veloster and established a set of rules that he and his engineers they had to comply. while they weredeveloping the Veloster they needed a peppy engine overhaul, they needed a stiff chassis with good handling, check idiotic performance brakes, check we didn't even talk about them but they made some internal breaks that rival Brembos pretty well, let's finally talk about one one of the best aspects of this car and that's the price now this car with the performance package is under $30,000 that's pretty crazy that's over six thousand dollars less than a Thai part at over $10,000 less than a Golf R now this is a bargain car I mean everyone I have talked to who has driven one.

They are crazy fauna. So do you have a favorite hot hatch? Is this Civic Type-r? Better. I don't know, go watch this episode of Up to Speed. Come back and tell me what you think would be tight, do you tie yourself? I don't know, go see, speed up, come back. I'll be in the comments in the first hour of this video. Write me a message if you make me laugh. I would love your comment, goodbye for now.