Author Topic: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup  (Read 1398 times)

Offline Autos_Editor

  • Car Crazy
  • *****
  • Posts: 6286
  • Carma: +80/-409
  • member
    • View Profile
Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« on: February 11, 2013, 06:25:56 am »


We take an in-depth look at the technologies that GM has implemented in their 'Ecotec 3' pickup truck engines.

Read More...

Offline airbalancer

  • Car Crazy
  • *****
  • Posts: 21617
  • Carma: +354/-355
  • Gender: Male
    • View Profile
  • Cars: 2000 BMW 323, 2010 Toyota Prius, 2011Chevy Silverado LTZ
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #1 on: February 11, 2013, 08:16:15 am »
Active Fuel Management is a bit of a joke, if you carry any kind of a load it will not drop down
Also you would think is you are sitting at red light, it would drop down but it does not  ::)

Offline mixmanmash

  • Drunk on Fuel
  • ****
  • Posts: 2585
  • Carma: +52/-165
  • member
    • View Profile
  • Cars: 2014 Honda Odyssey Touring; 1993 Nissan 300ZX Twin Turbo; 2009 Nissan Rogue S AWD (wife's); 2002 Mazda Protege ES-GT (retired)
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #2 on: February 11, 2013, 08:21:29 am »
All this technology and simulation sounds good.  Let's see what these engines will do in the real world for fuel economy and reliability.

Offline Mike

  • Car Crazy
  • *****
  • Posts: 4878
  • Carma: +152/-89
  • Gender: Male
  • Used to be here, still like to visit
    • View Profile
  • Cars: 2005 Saab 9-2x Aero, 2008 Suzuki SX4 Sedan
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #3 on: February 11, 2013, 08:22:31 am »
Active Fuel Management is a bit of a joke, if you carry any kind of a load it will not drop down
Also you would think is you are sitting at red light, it would drop down but it does not  ::)

Sort of like all these start-stop features...that don't operate when it is cold out.

Offline AP

  • Drunk on Fuel
  • ****
  • Posts: 2149
  • Carma: +66/-86
    • View Profile
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #4 on: February 11, 2013, 08:29:47 am »
Truth be told, I would rather have gone with the 5.0 V8 in my F150 than the Ecoboost.  However, one of the benefits of Ford having made a forced induction V6 is that in so doing they gave consumers a performance based reason to prefer a V6 over a  V8.  GM is not going very far to induce anyone who would otherwise have opted for a V8 to get a V6 instead...

Offline OliverD

  • Drunk on Fuel
  • ****
  • Posts: 1751
  • Carma: +46/-97
  • Gender: Male
  • member
    • View Profile
  • Cars: 2007 Mini Cooper S, 2006 Mazda6 GT wagon, 2007 Mazda3 GT sedan
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #5 on: February 11, 2013, 08:55:55 am »
GM is not going very far to induce anyone who would otherwise have opted for a V8 to get a V6 instead...

Sure they are. The base engine in a extended cab or crew cab 4x4 is currently the 4.8, which is gone in the new generation. Since the new 4.3 should be a lot more powerful than the current one, it's safe to assume that it will be available in more configurations. I'd bet we're going to see a lot of lower end extended cab 4x4s on lots equipped with the V6.

Offline AP

  • Drunk on Fuel
  • ****
  • Posts: 2149
  • Carma: +66/-86
    • View Profile
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #6 on: February 11, 2013, 09:08:43 am »
GM is not going very far to induce anyone who would otherwise have opted for a V8 to get a V6 instead...

Sure they are. The base engine in a extended cab or crew cab 4x4 is currently the 4.8, which is gone in the new generation. Since the new 4.3 should be a lot more powerful than the current one, it's safe to assume that it will be available in more configurations. I'd bet we're going to see a lot of lower end extended cab 4x4s on lots equipped with the V6.

At most that establishes that those who might have previously gone with the outgoing 4.8 V8 might now instead opt for the 4.3 V6.  Fair enough.  But no one shopping from within the new suite of V8 engines has a performance based reason to go with the 4.3 V6 over one of the new V8s.  This is unlike Ford.  The Ecoboost is the higher performance engine relative to the 5.0 V8. 

Offline NoTo

  • Drunk on Fuel
  • ****
  • Posts: 2439
  • Carma: +61/-250
  • member
    • View Profile
  • Cars: 2011 Subaru Forester XT Limited; 2010 Toyota 'rolla CE; 2006 Lexus RX400h
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #7 on: February 11, 2013, 09:30:46 am »
Sounds a lot like a lazy, less impressive attempt at the skyactiv treatment...make better what you have without radical change (a la bull$h!t "Eco"boost).  Good effort, but weight savings, lowering Coefficient of Drag, and transmission changes could make a much bigger difference.

Offline OliverD

  • Drunk on Fuel
  • ****
  • Posts: 1751
  • Carma: +46/-97
  • Gender: Male
  • member
    • View Profile
  • Cars: 2007 Mini Cooper S, 2006 Mazda6 GT wagon, 2007 Mazda3 GT sedan
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #8 on: February 11, 2013, 09:31:38 am »
GM is not going very far to induce anyone who would otherwise have opted for a V8 to get a V6 instead...

Sure they are. The base engine in a extended cab or crew cab 4x4 is currently the 4.8, which is gone in the new generation. Since the new 4.3 should be a lot more powerful than the current one, it's safe to assume that it will be available in more configurations. I'd bet we're going to see a lot of lower end extended cab 4x4s on lots equipped with the V6.

At most that establishes that those who might have previously gone with the outgoing 4.8 V8 might now instead opt for the 4.3 V6.  Fair enough.  But no one shopping from within the new suite of V8 engines has a performance based reason to go with the 4.3 V6 over one of the new V8s.  This is unlike Ford.  The Ecoboost is the higher performance engine relative to the 5.0 V8.

Fair enough. It's certainly a different approach.

Offline dragonfly

  • Enthusiast
  • **
  • Posts: 356
  • Carma: +17/-66
    • View Profile
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #9 on: February 11, 2013, 10:08:26 am »
 Sounds like GM is blowing a bit of hot air up our wazoos here...A buddy of mine bought a base 2WD, posi rear-ended, Ford short bed ,new, about 4 months ago, with the 3.7 N/A V-6...Loves the little truck..I do too..The standard steel wheels look nice..It's a standard cab, but it has an extraordinary amount of room behind the seats...Like maybe 1-1.5 feet. He says he's getting over 20 MPG running around locally. And had seen 25-26 on the highway..I think he said he paid 25 thou for it...What a neat little truck...The new Dodge V-6 looks good too....But I have no first hand experiences with it as yet...Anybody here?   Jack

Offline airbalancer

  • Car Crazy
  • *****
  • Posts: 21617
  • Carma: +354/-355
  • Gender: Male
    • View Profile
  • Cars: 2000 BMW 323, 2010 Toyota Prius, 2011Chevy Silverado LTZ
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #10 on: February 11, 2013, 11:01:25 am »
Sounds like GM is blowing a bit of hot air up our wazoos here...A buddy of mine bought a base 2WD, posi rear-ended, Ford short bed ,new, about 4 months ago, with the 3.7 N/A V-6...Loves the little truck..I do too..The standard steel wheels look nice..It's a standard cab, but it has an extraordinary amount of room behind the seats...Like maybe 1-1.5 feet. He says he's getting over 20 MPG running around locally. And had seen 25-26 on the highway..I think he said he paid 25 thou for it...What a neat little truck...The new Dodge V-6 looks good too....But I have no first hand experiences with it as yet...Anybody here?   Jack

That pretty shitty for a little truck , I get 15l/100km , in a truck that looks like a brick with a ladder on top of it

Offline OliverD

  • Drunk on Fuel
  • ****
  • Posts: 1751
  • Carma: +46/-97
  • Gender: Male
  • member
    • View Profile
  • Cars: 2007 Mini Cooper S, 2006 Mazda6 GT wagon, 2007 Mazda3 GT sedan
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #11 on: February 11, 2013, 11:36:41 am »
That pretty shitty for a little truck , I get 15l/100km , in a truck that looks like a brick with a ladder on top of it

Really depends what kind of gallons we're talking about here. Anything over 20 U.S. MPG is pretty damn good for a full size truck.

Offline Mozeby

  • Enthusiast
  • **
  • Posts: 293
  • Carma: +2/-0
  • Gender: Male
    • View Profile
  • Cars: 2010 Acadia, 2012 Ram 1500
Re: Auto Tech: Chevrolet Silverado and GMC Sierra Engine Lineup
« Reply #12 on: March 03, 2013, 02:28:18 pm »
Sounds a lot like a lazy, less impressive attempt at the skyactiv treatment...make better what you have without radical change (a la bull$h!t "Eco"boost).  Good effort, but weight savings, lowering Coefficient of Drag, and transmission changes could make a much bigger difference.

So basically what Ram did with the new 2013 1500.