Supplier Spotlight

Video Exclusives

Porsche 917 engine rebuild

gtr

Canepa, one of America's leading classic and vintage car dealers, details the restoration and rebuilding of one of its Porsche 917 competition engines


The next-gen valvetrain?

gtr

Camcon Automotive has developed a digitally controlled intelligent valve operation, which it states can significantly increases engine economy and flexibility.


Click here/on image to watch video

Web Exclusives

« back to listing

GM’s new diesel pickups get class-leading EPA rating

General Motors has revealed two new diesel pickups, the GMC Canyon and Chevrolet Colorado, which it claims offer segment-leading fuel consumption.

 

Both trucks have been rated by the EPA at 25mpg (9.4l/100km) combined in two-wheel-drive form, while the four-wheel drive models are rated at 23mpg (10.2l/100km).

Both trucks are powered by the company’s 2.8-liter Thailand-built Duramax engine, which GM says makes the trucks the cleanest it has ever produced thanks to a cooled exhaust gas recirculation system.

The inline-four features a high-pressure common rail injection system and dual-overhead camshaft. Bore and stroke are 94mm and 100mm respectively, while the compression ratio is 16.5:1. 

Above: The Chevrolet Colorado

GM says its variable-geometry turbocharger helps optimize power and efficiency across the rev band and a balancer shaft contributes to smoothness. Ceramic glowplugs are fitted to improve overall efficiency.

Additionally, Canyon and Colorado diesel models feature a diesel exhaust brake that has been designed to reduce brake wear by using engine compression to slow the truck down, particularly when traveling downhill.

Above: The GMC Canyon

The Duramax’s power and torque are rated 184ps and 500Nm, and the trucks are paired with GM’s Hydra-Matic 6L50 six-speed automatic transmission, which uses a centrifugal pendulum vibration absorber in the torque converter to reduce powertrain noise and vibration.

GM is also keen to note that both trucks have received an EPA certificate of conformity, following the agency’s extensive emissions and fuel consumption testing. The Duramax engine has been designed to run up to 20% biodiesel.

November 11, 2015

 

11 November 2015

Read Latest Issue

International Engine of the Year Awards
Read Latest Issue
Read Latest Issue

Web Exclusive Articles

Engines on test: Infiniti Q60 2.0T (Mercedes-Benz M274)
Can an engine that shares the vast majority of its architecture with a six-year old Mercedes-Benz sourced inline four provide Infiniti's low-slung coupe with performance to match its looks?
Read Now

DS electric future: The Knowledge
Following several seasons of competition in the FIA's Formula E championship, Citroen's sub-brand DS is set to roll out an entire range of all-new electric and hybrid vehicles
Read Now

Engines on test: Seat EA211 1.0-TSI
A sub 1.0-liter downsized unit in a C-segment car was always going to split opinion in the Engine Technology International office. How does Seat's TSi-equipped Leon stack up, in a class already saturated with options? 
Read Now


Supplier Spotlight

Supplier SpotlightClick here for listings and information on leading suppliers covering all aspects of the engine technology industry. Want to see your company included? Contact aboobaker.tayub@ukimediaevents.com for more details.

فروشگاه اینترنتی فروشگاه اینترنتی سیستم همکاری در فروش کانال تلگرام چت روم ماهواره آنلاین اندروید دانلود فیلم فروشگظ;ه اینترنتی

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the engine technology community? We'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to d.slavnich@ukimediaevents.com

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email aboobaker.tayub@ukimediaevents.com