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Auto blog

Toyota to buck engine downsizing trend, may go larger and turbo-free

Turbocharging isn't really Toyota's specialty, and the Japanese automaker isn't being shy about acknowledging it. Koei Saga, a senior managing officer in charge of drivetrain research and development, says that eschewing turbos and increasing displacement of engines using the Atkinson cycle can produce better power gains without sacrificing fuel economy, Automotive News reports.
Toyota is investing heavily in larger-displacement Atkinson-cycle engines in addition to turbocharged engines, but Saga doesn't think the automaker will use turbocharging across many product lines. He apparently remains unconvinced that the technology "makes the world better."
In Toyota's eyes then, Atkinson cycle engines do make the world better, and here's how. Their pistons complete four processes - intake, compression, power and exhaust - in one revolution of the crankshaft, and the power stroke is longer than the compression stroke. Traditional Otto cycle engines require two crankshaft revolutions to accomplish those same four operations and have equal-length compression and power strokes. Atkinson cycle engines are more efficient, but less power dense, though increasing displacement can offset that shortfall.

Autoblog Podcast #317

Mitsubishi Mirage, Toyota thinks of beefing up US production, Marchionne on Alfa, Dart and minivans, Ford Atlas concept, Honda Gear concept
Episode #317 of the Autoblog Podcast is here, and this week, Dan Roth, Jeff Ross and Michael Harley bookend the other podcast topics with a pair from the Montreal Auto Show, the Mitsubishi Mirage and Honda Gear concept, and in between we talk about Toyota building all its US-market cars stateside, Hyundai building a Nurburgring test facility, Sergio Marchionne's latest words about Alfa Romeo, Dodge Dart powertrains and the future of Chrysler vans. Some chatter about the Ford Atlas concept finishes up the meat of the 'cast and then we wrap with your questions. For those of you who hung with us live on our UStream channel, thanks for taking the time. Keep reading for our Q&A module for you to scroll through and follow along, too. Thanks for listening!
Autoblog Podcast #317:

Toyota mini doc chronicles Tundra towing Space Shuttle Endeavor

Toyota has worked up a quick video detailing the brand's involvement in the transportation of the Space Shuttle Endeavour last year. As you may recollect, the California Science Center ran into a hitch when it came to moving Endeavour from LAX to its new home. While most of the route would be covered by a robotically controlled transporter, one portion of the route directed the shuttle over an interstate. Unfortunately, the bridge across wasn't designed to stand up to the weight of the shuttle and its motorized sled.
The Science Center would have to remove Endeavour from its transporter and place it on a lighter, non-motorized sled. That's where longtime Science Center sponsor Toyota came in. As it turns out, the automaker had to prove to the California Science Center that a Tundra could actually tow the massive shuttle, so engineers put on a little demonstration with a stock truck pulling the equivalent weight over flat ground for the same distance. Once the Science Center was satisfied that the Tundra could pull it off, the move was green lit and the rest is history. Check out the short documentary below for yourself.