Julio Cezar Kronbauer's Blog

Fifth Gear: Volkswagen Golf R vs. Subaru WRX STi

The Subaru is not a Japanese Beetle. At 70 MPH it doesn't even breathe hard.

Do you hear vibrations? We don't. Horizontally-opposed engine at work. Quiet.
Do you have front-wheel drive? We do. Our front-wheel drive makes safety corners, surefoot curves, holds the road, zips through ice or snow. Power to the front wheels!
Turning circle. Just 31.5 easy little feet. Feet smaller than you-know-whose.
Inboard brakes. We've taken our front brakes out of the wheels which gives you 1: a remarkable stable ride with 2: marvelously light-handed steering.
Hey, racing fans. Rack-and-pinion steering.
2 doors not enough? For about $100 more, we can also give you 4.
Look. No fan, no fan belt. Listen. No fan noise. Learn. It takes a lot of horses to drive the fan. We use ours to drive the car.
How do we keep it cool? With two radiators, not one. And a clever thermostatic device that automatically takes over when the going gets hot.
Where's the spare? With the jack and the engine locked under the hood. Doesn't everybody?
6-footer leg-room up front. And nobody has to ride side-saddle in back.
Oh, my aching back? Not in our Subaru. An orthopedist designed our seats. Anatomical, adjustable, and ahhh, reclining.
What? Your back windows don't open? Ours do.
You know what's missing? That hump in the floor, thank goodness.
On, the room in the trunk; it boggles the mind. How do you like 6 full sets of golf-clubs plus 3 hefty suitcases? We like 48 soccer balls.
THE WHAT?
Independent suspension, all 4 wheels. Takes the ump out of bump, even in back.
The price? $1898.40* and not stripped down, but loaded with the options most people buy. *Total suggested retail price. Local taxes, dealer prep, inland freight, etc., extra.
THE SUBARU.
The Subaru is not a Japanese Beetle.
At 70 mph it doesn't even breathe hard.

2016 Riley Motorsports #33 Dodge Viper GT3-R - Daytona International Speedway - Jeroen Bleekemolen - Onboard

2016 Ferrari 488 GTB - Circuit de l'Anneau du Rhin - Uwe Sener - Onboard

0 to 350 in 250 seconds. The new General Electric 500XL.

0 to 350 in 250 seconds. Our new General Electric 500XL cooks just as fast as it looks. In fact, there's hardly another range in its class that can beat it. Inside or outside. Which is why our GE dealers de-cided to give it their highest accolade. By placing a removable racing stripe on its front. Fast looks and fast cooking, however, aren't all this range has going for it. It also cleans fast. Automatically. With our unique P-rself-cleaning oven. Over one million GE P-7 self-cleaning oven-ranges have already been sold. And it's no mystery why. P-7, unlike some other self-cleaning ovens, never needs to be cleaned by hand. Everything is cleaned electrically; oven walls, shelves, floor, inner door, even the reflector pans from the surface units. A few last things about our 500XL speed demon you should know about. Like the custom black and chrome instrument panel. That has a vinyl woodgrain light shield. (It protects your eyes from glare when the panel's illuminated.) Drive over to your General Electric range dealer. And ask him to show you our 500XL. In avocado, harvest, coppertone or white. One more thing. This is a limited edition. So wheel one out soon. GE SERVICE Seldom needed, always nearby.

Como funciona o Koenigsegg FreeValve, comando de válvulas sem corrente da marca de megacarros sueca

Um comando de válvulas tradicional de motor quatro tempos possui um eixo principal, que gira na metade da velocidade do eixo de manivelas (virabrequim). Desde o primeiro protótipo de Nikolaus Otto, o comando de válvulas, assim como quase todas as outras partes do motor, passou por diversas evoluções.

O motor VTEC da Honda é conhecido por alterar o tempo de abertura e fechamento das válvulas em altas rotações. A BMW e a Nissan possuem sistemas que alteram o tempo de abertura das válvulas de admissão, controlando a quantidade de ar inserida no cilindro de acordo com a posição do pedal do acelerador.

Só que a Koenigsegg, conhecida por seus carros mega rápidos, também inova em seus motores. Para atingir um desempenho excepcional nas pistas, várias partes do carro precisam sair do lugar comum. E uma delas é justamente o comando de válvulas, que dispensa a movimentação de partes mecânicas do motor, como corrente e eixo de manivelas.

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