Hyundai V8 VS Toyota V8

[chronic]

I found something interesting. Comparing Hyundai's Tau V8 to the Lexus V8 you see a tremendous differences. Where are all the wires and all the other components in the Hyundai V8 motor?

Hyundai 5.0L Tau GDI engine;

Lexus/Toyota V8

Where are all these components in the Hyundai?

 

[larry'sown]

It could have something to do with the Tau V8 being a much newer design as the Lexus 4.6/5.0L has been around for a number of years. If Toyota can get 480hp out of their 5.0L, I'm sure Hyundai can get at least that as well.

 

[homeofstone]

It looks like Hyundai just chose not to mount much on the engine. I like it. It makes service much easier if a tech does not have to wade through all the wires to get to something. I have had to replace an intake gasket on a truck I had and it took longer to disconnect wires and remove modules attached to the top of the engine than it did to pull the intake and replace the gasket. Hats off to Hyundai.

 

[chronic]

It looks like Hyundai just chose not to mount much on the engine. I like it. It makes service much easier if a tech does not have to wade through all the wires to get to something. I have had to replace an intake gasket on a truck I had and it took longer to disconnect wires and remove modules attached to the top of the engine than it did to pull the intake and replace the gasket. Hats off to Hyundai.

Where are all the other wires and stuff?

 

[andyman32]

Where are all the other wires and stuff?

They're there, just harder to see. The ignition wires are running along both sides and join a track at the rear of the intake manifold. The other wires would be injectors and I'm not sure where those are placed in the GDI engine. There are a couple of other wires, coolant temperature sensor and other sensors that probably just bundle up and go down the front of the engine instead of over the top. Here's a good picture:
http://www.thedetroitbureau.com/wp-content/uploads/2011/02/Hyundai-Genesis-Tau-Engine.jpg

I had a LS400 with a 1UZ-FE 4.0L V8 motor in it and it was much simpler and cleaner than the pictured Toyota V8, although when I had to remove the intake manifold it did require the removal of some number of breather hoses that ran back and forth across the top of the manifold.

Just depends on the application. I don't think my 4.6L Tau V8 is laid out any more or less complicated than the Mercedes or Lexus V8s I've worked on... of course, since it's under warranty, I haven't really been able to do much other than looking at it yet.

 

[2112]

Something I haven't thought about.
I hope our starters aren't under the intake manifold like the old LS400 V8 is.

 

[James Joyce]

22% of the Hyundai Sonata repairs were to the engine, 6% to the transmission, 11% to the brakes, 10% to the suspension, 30% to the electrical or air-conditioning systems, 14% to the body and trim, and 7% to other areas of the vehicle.

 

[chronic]

22% of the Hyundai Sonata repairs were to the engine, 6% to the transmission, 11% to the brakes, 10% to the suspension, 30% to the electrical or air-conditioning systems, 14% to the body and trim, and 7% to other areas of the vehicle.

why does hyundai use plastic valve covers? That's just cheap and a compromise

The 2.4L 4-cyl 2AZ Camry engine has Magnensium valve covers

 

[FastDEW1]

To the comment on why Hyundai uses plastic valve covers - Almost everyone does now. Its lighter. Plastic valve covers, intake manifolds, just about anything you can to lighten the engine saves fuel.

As for the injector wires. On nearly ALL GDI motors of any brand - The wires and injectors, along with the fuel rails are under the valve covers. This is typical in GDI motors.

 

[PMCErnie]

Chronic, you seem to have a habit of making threads unreadable with your photo posts. Can you fix?

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[chronic]

To the comment on why Hyundai uses plastic valve covers - Almost everyone does now. Its lighter. Plastic valve covers, intake manifolds, just about anything you can to lighten the engine saves fuel.

As for the injector wires. On nearly ALL GDI motors of any brand - The wires and injectors, along with the fuel rails are under the valve covers. This is typical in GDI motors.

Uhmm Toyota uses Magneaium valve covers. Light, strong and improves NVH by a large margin.

- The 2AZ uses some lightweight and low-noise engine building techniques, including a magnesium cam cover, a glass-reinforced plastic intake manifold, and double-layer tubular exhaust headers. The block, crank case, and cylinder heads are made from high density aluminum.

The only reason hyundai uses plastic because it's much cheaper. Next we'll see Hyundai using plastic pistons LMAO

 

[Mark_888]

Uhmm Toyota uses Magneaium valve covers. Light, strong and improves NVH by a large margin.

- The 2AZ uses some lightweight and low-noise engine building techniques, including a magnesium cam cover, a glass-reinforced plastic intake manifold, and double-layer tubular exhaust headers. The block, crank case, and cylinder heads are made from high density aluminum.

The only reason hyundai uses plastic because it's much cheaper. Next we'll see Hyundai using plastic pistons LMAO

To make a fair comparison, you would have to look at a fairly new engine design from Toyota. And I don't mean an old engine design in a new car.

 

[FastDEW1]

Uhmm Toyota uses Magneaium valve covers. Light, strong and improves NVH by a large margin.

- The 2AZ uses some lightweight and low-noise engine building techniques, including a magnesium cam cover, a glass-reinforced plastic intake manifold, and double-layer tubular exhaust headers. The block, crank case, and cylinder heads are made from high density aluminum.

The only reason hyundai uses plastic because it's much cheaper. Next we'll see Hyundai using plastic pistons LMAO

Hyundai uses it because of weight... And yes, Cost. Go look under the hood of nearly ANY brand and you will find plastic all over the place. Including the beloved Toyota. And if this particular Toyota doesn't have plastic yet, don't worry... It will in the next generation of MCR. This isn't about "cheap" as being inferred.. This is simple business economics. You want to buy a car with lots of goodies but unless the OEM takes cost out where it really isn't necessary - then you cannot have your optioned up car because you won't be able to afford it. The idea that you can drive a car and tell the difference (95% of the buyers or more) what kind of valve covers you have is plain crazy. But 95% of the buyers can tell the difference between a $50k car with Nav and a $55k car without Nav. The point is, cost is king in automotive business. Don't be fooled into thinking otherwise, unless you are buying a Maybach.

 

[shagnat]

With the advancement of 3D printing, customers will soon be able to "make" their own parts/pieces............ imagine how that's going to turn industrial production on it's ear !!!