By Enrique E
Hello I’m new to this site and I will have my 16 Denali 2500 HD in a couple weeks. I’m looking to add tow mirrors. Boost Auto seems to have a nice mirror setup. Any input is greatly appreciated. Let me know your experience and opinion on tow mirrors on your truck. Thank you
GM's New Silverado 2.7L Gas Turbo Engine Is Faster and May Be More Fuel Economical Than Colorado With 2.8 L DuramaxBy Gorehamj
Contributing Writer, GM-Trucks.com
General Motors released the preliminary specifications for the Silverado 1500 with the 2.7-liter gasoline turbocharged engine. The torque and horsepower were already known to us. 310 horsepower and 348 lb-ft of torque. That torque is delivered from 1,500 RPM all the way to 4,000 RPM. What GM added today was the fuel efficiency and 0-60 MPH time numbers and they are impressive.
Chevrolet says that the new 2WD Silverado will accelerate from 0-60 MPH in 6.8 seconds. By contrast, Motor Trend recorded a 9.7-second 0-60 MPH time for the Colorado ZR2 Duramax diesel. Truck Trend's testing revealed a 9.55-second run. The much larger Silverado is much quicker than the Colorado Duramax. But who cares? Diesel isn't about quick sprints.
Diesel is about fuel economy. Here the numbers are a little less easy to match up directly. One number that does match up perfectly is the City cycle fuel efficiency. GM says the new Silverado will earn a 20 MPG city rating. That matches the Colorado Diesel's rating (of 20 MPG). The Silverado 2.7L will be rated at 23 MPG Highway. The Colorado Duramax is rated at 30 MPG Highway. The question we don't know the answer to yet is which fuel, regular, or premium will be required. It matters because if the engine can use regular unleaded fuel, it will have a Combined fuel economy rating higher than the Colorado with the 2.8L diesel due to the higher fuel cost for diesel. AAA pegs the average cost for diesel fuel right now, ahead of the winter season when prices rise for diesel, at 11.4% higher than regular unleaded fuel. Premium unleaded is currently the highest-priced liquid-fuel at about 16% higher than regular unleaded. So if GM required premium fuel, the new 2.7-liter turbo's fuel economy will not be that impressive.
GM is rating the Silverado 1500 with the 2.7-liter engine at 7,200 pounds. The Silverado 2.7L will reach peak torque more quickly than the Colorado Duramax diesel. However, for a short duration in the RPM band, the Duramax has a 21 lb-ft advantage in torque.
We've reached out to GM and asked what fuel will be required. Of course, we are comparing a full-size truck here to a midsized truck. Imagine the comparison of a Colorado equipped with the 2.7-liter gasoline engine tuned for regular fuel vs. a 2.8-liter Duramax. GM could potentially have a midsized gasoline truck with lower fuel costs, quicker speeds, and equivalent towing capability to its diesel. The Torque and HP curves for both engines are shown below.
Executive Editor, GM-Trucks.com
Those wishing for some guidance on how the all new 3.0L Duramax Diesel will rate just had that wish come true. The Fast Lane Truck got the scoop from someone with access to General Motor's Canadian Dealer Portal. Promotional material that included specs for the new 3.0L were photographed and emailed to the website yesterday. That means someone with dealer access facilitated the leak.
The not quite yet official figures rate the light-duty diesel engine at 282 horsepower and 450 lb-ft of torque. The material also claims a highway rated fuel economy of 28 mpg. That's more power then both Ford and Ram's small diesels, which produce 250hp/440 lb-ft and 240hp/420 lb-ft respectively.
The same spec sheets also list the towing capacity of the 3.0L at 7,800 lbs, which falls below the 5.3L and 6.2L's 9,000lb+ rating. To us this signals that GM will market the 3.0L Diesel as a daily commuter for someone who occasionally tows.
What do you think about the ratings and capability? Chime in on this thread in our 2019 Chevy Silverado and GMC Sierra forum.
Contributing Writer, GM-Trucks.com
Let's face it. The Bison is a Colorado ZR2 with skidplates, better bumpers, and the cool snorkel. Except you can get the snorkel just as easily on a ZR2 or even a base Colorado. Chevy isn't supplying them from the factory. To have that cool appendage, you have to install it yourself or have someone do it for you. Cutting out the catcher's mitt-sized hole in the fender is one thing, you can always replace a fender, but drilling into the A-Pillar may seem scary. That A-Pillar is responsible for a lot of safety functions as well as being a tougher part to repair if need be than a removable fender. To drill or not to drill, that is the question.
It is also a question we put to the Facebook Chevy Colorado ZR2 club. 77 of the 144 respondents said "No F'ing Way!" to drilling into that particularly sensitive spot.
To see if the A-Pillar is off limits, we reached out to the Steel Market Development Institute (SMDI). These are the folks who help automakers to develop the exotic steels now used for lightweighting and strengthening key parts of trucks and cars. First, we asked SMDI what exactly the A-Pillar in a Chevy Colorado is made from and how it is made. They told us, "A-pillars are typically designed with 3 layers of sheet metal. An outer body side panel which is the painted exterior surface, and an outer (middle layer) and inner (interior to the passenger compartment) A-pillar structures. The outer panel is made of mild steel and is mostly to cover the structure of the vehicle and contribute to styling. The two structural pieces for the A-pillar are made of ultra-high-strength steel (UHSS) and have tensile strengths greater than 1000 MPa. The outer is a press-hardened steel (PHS), also called a hot-stamped steel. The inner is a multi-phase grade (stamped at room temperature). These grades are 4-6 times stronger than the mild steel of the outer panel and deliver exceptional performance in strength and resistance to intrusion (bending or crush in a collision). These grades also deliver efficient designs of the A-pillar in that higher strength allows for a thinner section design (over lower strength materials such as aluminum) which gives better visibility to the driver."
SMDI reviewed the video of the install from AEV, the supplier of the snorkel. We then asked them if they thought the drilling was any kind of concern. SMDI replied, "The way this process is shown in the video is more than adequate to attach the snorkel without compromising the performance integrity of the A-pillar. It is attached directly to the outer panel and does not disturb the load path performance provided by the outer and inner structural pieces."
So the experts say "full send!" Send us images and video if you do an install of your own. We'd love to do a post showing them off. Here's how to get the snorkel kit.
Image note: Component images are slides from the 2015 Great Designs in Steel presentation by Wendy Malone (GM) on “The All New 2-15 Chevrolet Colorado and GMC Canyon Cab Structure.” Courtesy of SMDI.
Contributing Writer, GM-Trucks.com
The all-new 2019 Chevy Colorado ZR2 Bison was revealed today. The Bison is primarily a Colorado ZR2, but with some modifications from GM's new off-road partner, American Expedition Vehicles (AEV). The Bison will come standard with all of the ZR2's gear.
In addition to that, the Bison will have hot-stamped boron steel skidplates covering the front and rear lockers, oil pan, fuel tank, and transfer case. The Bison also features unique steel front and rear bumpers. The front bumper is winch-ready and has standard fog lights. The rear has standard recovery points.
The drivetrain options are the same as the ZR2, and the Bison has the same added track width and 2" suspension lift over the Colorado Z71.
Under larger fender flares, the Bison has its own 17x8-inch wheels with Goodyear Wrangler Duratrac tires.
The Bison will be available in both crew and extended cab configurations with short and long beds respectively.
Look for the Bison at Chevrolet dealers in January. We will update our coverage with price information when it becomes available.
The bad-ass snorkel is not standard and Chevy will not provide it to you directly is we read the Chevy info correctly. Rather, it will be available from AEV and is adaptable to every Chevrolet Colorado trim, not just ZR2 and Bison. Details on the kit can be found here.
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