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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.

Toyota GT86 convertible on 'indefinite hold'

Bad news, sportscar fans. According to a new report from What Car?, Toyota has cancelled plans to produce a GT86 convertible, a model based on the FT-86 Open Concept that debuted at the 2013 Geneva Motor Show. In truth, Toyota never actually confirmed it would produce the budget-friendly droptop in the first place, but rumors have been flying since last year and Toyota reportedly showed its embattled Scion dealers a FR-S version of the convertible in August. Presumably, this means that a lidless variant of the Subaru BRZ is not in the cards, either.
The reason for the move is unknown, though What Car? reports "one possible cause is weight; Toyota did say that further work would be required on rigidity before the convertible could be launched, and that could have added extra bulk that conflict with the regular GT86's ethos of light weight and agile handling." It doesn't look like that work will happen anytime soon, as "sources now say that the car has now been delayed indefinitely, with no place in Toyota's product plan in either 2014 or 2015." Still holding out hope? What Car? says the project could be "fast-tracked" if management decides it wants to reboot the program down the road.
one possible cause is weight; Toyota did say that further work would be required on rigidity before the convertible could be launched, and that could have added extra bulk that conflict with the regular GT86's ethos of light weight and agile handling. - See more at: http://www.whatcar.com/car-news/toyota-gt86-cabriolet-cancelled/1214782#sthash.iStIkWnz.dpuf

Toyota recalls 4,000 Tacoma pickups over valve springs

When you build as many cars and trucks as Toyota does, you're bound to run into the occasional recall. In the past month alone, the Japanese auto giant has recalled over 800,000 Camry, Avalon and Venza models over problems with the air-conditioning units, and 10,000 more before that over windshield wiper issues. Now Toyota has issued another recall notice, but this time for far fewer vehicles.
The recall revolves around the engine valve springs in the 2013 and 2014 Tacoma, specifically those fitted with the standard 2.7-liter four-cylinder engine and not the optional 4.0-liter V6. The issue is that the valve springs are prone to cracking and breaking over time, and results from improper maintenance of the manufacturing equipment used by one of the two suppliers that outfit Toyota with the components in question.
All told, some 4,000 vehicles will be subject to the voluntary recall, the owners of which will receive notice by mail. If you think that could be you and want to get a jump on the problem, you can read the announcement below and call Toyota yourself.