Engineering Explained

 
Why the pushrod engine still exists

5 reasons why pushrod engines still exist

The pushrod engine is a rather archaic piece of engineering, but automakers have stuck by it to this day. Notably, Fiat-Chrysler Automobiles and General Motors still shove pushrod V-8 engines under the hoods of hundreds of thousands of vehicles. Why has the pushrod engine failed to die, especially... read more

July 4, 2018 by
 
Why expensive cars aren't always reliable

Here's why expensive cars aren't always reliable

When you think about expensive automobiles, there's one data point that doesn't often enter into the discussion. That would be reliability. It seems the more you spend on a... read more May 23, 2018 by


 
How Mazda eliminates turbo lag

Here's how Mazda goes about reducing turbo lag

Mazda hasn't been shy about its dedication to the internal combustion engine. After all, the Japanese company will likely arrive first to market with a homogeneous charge... read more May 18, 2018 by


 
Why don't pushrod engines have high redlines?

Why don't pushrod engines have high redlines?

Pushrod engines may not be high-tech by today's standards, but they soldier on and have benefits of their own. One downfall, however, is their ability to rev. Pushrod engines... read more May 15, 2018 by


 
Engineering Explained talks about octane and cetane ratings

What is an octane rating and what does it mean?

You pull up to the pump and you are presented with a few choices, and we're not talking about different fuel types here. We're talking, of course, about octane ratings. Those... read more May 12, 2018 by


 
Why the Ford flathead V-8 engine died

Why Ford's flathead V-8 engine died

Ford's famed flathead V-8 was revolutionary when the automaker put the engine into production in 1932. It brought the V-8 to the mass market and ready power to hot rodders... read more May 11, 2018 by


 
Audi is eliminating turbo lag with electric superchargers

Here's how Audi uses electric compressors to eliminate turbo lag

Automakers have started using electric compressors to help eliminate lag in their turbocharged engines. The first with the technology was Audi, which introduced it in its SQ7... read more May 1, 2018 by


 
Delphi dynamic skip fire technology

How dynamic skip fire tech can cut V-8 fuel use up to 20 percent

The dynamic skip fire system developed by Silicon Valley startup Tula Technology is set to make its debut in the 2019 Chevrolet Silverado and 2019 GMC Sierra, promising big... read more April 21, 2018 by


 
Should you start in second gear?

Should you start from a stop in second gear?

Drivers have various reasons for starting in second gear, especially with a manual transmission. Perhaps first gear is too short, or snowy road conditions require lighter... read more April 20, 2018 by


 
How Audi eliminates body roll

Here's how Audi is eliminating body roll

Too much body roll is never a good thing. To tighten things up further, Audi has introduced a system featuring two electronic sway bars to nearly eliminate body roll. And who... read more April 13, 2018 by


 
How do centrifugal superchargers work?

How do centrifugal superchargers work?

Your car arrives from the factory. Bolted under the hood is an engine that makes modest power, and it does so by breathing just fine on its own. It could make more power... read more March 31, 2018 by


 
Volkswagen TDI 'clean diesel' television ad screencap

How did Volkswagen's diesel defeat device work?

Every media outlet in the world covered Volkswagen's tangled web of lies and deceit as "Dieselgate" opened up and spewed the truth nearly three years ago. Its consequences... read more February 28, 2018 by


 
Mercedes-Benz F1 engine efficiency

Mercedes created the world's most efficient racing engine

Mercedes-Benz dominated Formula One in 2017, and part of its success was no doubt due to its latest F1 powertrain. The big news surrounding the engine is the fact it achieves... read more February 27, 2018 by


 
How to break in a new limited-slip differential

How to break in a new limited-slip differential

Jason Fenske from Engineering Explained is starting to wrench on his Honda S2000 project car. One of the latest areas of the car he's attacking is the rear end. His yellow... read more February 24, 2018 by


 
Torque explanation from Engineering Explained

What's the difference between horsepower and torque?

We toss the words "horsepower" and "torque" around pretty often in the automotive industry, but perhaps the meaning of both gets lost along the way. Never fear, Engineering... read more February 23, 2018 by


 
Engineering Explained turbochargers vs superchargers

Which is better: a supercharger or turbocharger?

There are two relatively simple options to boost (pun intended) horsepower in a vehicle: superchargers and turbochargers. But, which is better? Once again, Jason Fenske of... read more February 21, 2018 by


 
 

 
© 2018 MotorAuthority. All Rights Reserved. MotorAuthority is published by Internet Brands Automotive Group. Stock photography by izmostock. Read our Cookie Policy.