Category: Engines

By on October 27, 2016

Infiniti four-cylinder turbocharged gasoline VC-T engine, Image: Infiniti

It was 1998 and my friend Tom had just picked up a 1991 Eagle Talon TSI AWD.

“Ok, go ahead and floor it, but don’t rev it past 5,000 rpm,” Tom said.

I mashed the throttle and … nothing happened.

We were moving, but it was at the pace of a Toyota Corolla and nowhere near the rate of acceleration promised by the 2.0-liter turbo’s claimed 195 horsepower.

Disappointed, I left my foot on the throttle for a few seconds. Suddenly, I heard the whistle of the spooling turbo and a sudden shove of boost kicked in.

Four-cylinder turbo engines from the ‘90s were all similar to this. While they generated relatively big power at the top end, they also suffered from massive turbo lag and had fuel economy similar to a much larger V8.

Nissan’s new Variable Compression Turbo engine promises big power, minimal turbo lag, and decent fuel economy using some new trickery.

Is this the holy grail of turbocharged motors?
Read More >

By on October 21, 2016

2012 Audi Q7 white

A German newspaper claims that Audi will buy back 25,000 U.S. vehicles sold with a 3.0-liter diesel V6 engine.

According to a story published in Der Spiegel, the automaker has determined the vehicles cannot be fixed, Reuters reports. A total of 85,000 Audi, Porsche and Volkswagen vehicles contain the same emissions-cheating defeat device found in the automaker’s 2.0-liter TDI engines, which are already in the process of being bought back. Read More >

By on October 18, 2016

Audi Q7 2016

Audi’s Q7 can now be optioned with a downsized motor — which is perfect for that tiny cross-section of America that doesn’t feel the need to prove itself with a big engine but also wants to own the largest and most expensive crossover Audi offers.

Huzzah? Read More >

By on October 11, 2016

2016 Ford Mustang GT

Mustang GT and EcoBoost owners can now revel in the pleasures of warranty-compliant performance upgrades from Ford Performance Parts.

The 2.3-liter Ecoboost four-cylinder can now be paired with a cold air intake and engine recalibration that Ford says raises peak horsepower by 25 and bumps torque up by a notably large 70 lb-ft. Read More >

By on October 5, 2016

2017 Ford F-150

It’s not a revolution in fuel efficiency, but an evolution.

Ford added a healthy dose of new technology to the 2017 F-150’s 3.5-liter Ecoboost V6 powertrain, but the significance of the newfound efficiency depends on who you ask. To the folks at the Blue Oval, it’s a mileage boost worthy of celebration. To would-be buyers, it’s a minor perk, but tell me more about the torque. Read More >

By on October 4, 2016

2017 Buick Regal, Image: General Motors

Update: Added statement from Buick.

As Buick rolls out its Avenir sub-brand, slashes underperforming products, and bolsters its crossover and SUV portfolio, the Regal withers on the vine — but not for long.

Speaking with a well-placed source, TTAC gleaned details on the forthcoming Buick Regal, which will be revealed in the second quarter of 2017, possibly at the New York International Auto Show.

Read More >

By on September 29, 2016

2017 Ford F-150 Raptor

Ford Motor Company has issued specifications for its 2017 F-150 Raptor off-road performance pickup, and you can thank the company’s engineers for the attractive numbers.

The next-generation Raptor makes serious gains not just in horsepower and torque, but also in fuel economy. The mileage boost should make those dirt-flinging romps through the countryside just a little bit greener. Read More >

By on September 29, 2016


Toyota first showed off its funky C-HR small crossover at the Geneva Motor Show earlier this year, but it waited until Paris to reveal the model’s powertrain lineup.

Unlike its Nissan Juke competitor, don’t expect a high-performance C-HR when the model bows in 2017. At least, not just yet. Read More >

By on September 28, 2016

2017 Land Rover Discovery

Land Rover pulled the wraps off the next-generation Discovery today at the Paris Auto Show, revealing a host of changes to the brand’s storied nameplate.

Not wanting anyone to mistake it for another SUV, the automaker kept some exterior styling cues from the outgoing LR4, but moved the overall shape in the direction of the Discovery Sport. However, the biggest changes hide beneath the Disco’s skin. Read More >

By on September 28, 2016

2017 chevrolet silverado 2500HD

General Motors quickly deleted the power figures for its new 6.6-liter Duramax turbodiesel V8 after they were posted to the GM Powertrain website, but we now have confirmation of the heavy-duty engine’s output.

TTAC’s Matthew Guy has just sent us the figures from the Texas Motor Speedway in Fort Worth, where GM is debuting its 2017 heavy duty pickups. Read More >

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