2019 Silverado is getting a turbo 4

[CMNTMXR57]

https://autoweek.com/article/trucks/check-tech-chevy-silverados-new-turbo-four


some neat write ups.







A look inside the Chevy Silverado's techy 4-cylinder engine

There was a time, probably 5, maybe 10 years ago, GM was working on (and maybe they still are and just haven't perfected it yet), electric solenoid actuated valves. Meaning zero camshafts whatsoever. Just a bunch of electric solenoids opening and closing valves. What this meant was exactly what they're trying to accomplish here... In an eco mode, virtually no opening (or none if the cylinder(s) are shut off), but then in power enrichment mode (WOT), they'd open as much as the motor could allowing for big power gains.

I wonder whatever happened to this? My armchair engineering says the hold up/hurdle it comes down to, is timing synchronization, but...

 

[Stink Star]

ECU power and programming sophistication, not to mention longevity of the actual valvetrain parts

 

[Yaj Yak]

hey guys, im still excited for the four banger silverado

so you know

 

[Bru]

Koenigsegg has a cam-less prototype running around. In a Saab last I read. That was a while ago though.

 

[Lord Tin Foilhat]

4 banger in a truck.....

*Coughfaggotcough

 

[Bub]

hey guys, im still excited for the four banger silverado

so you know

Why u won't buy one.

 

[EmersonHart13]

I'd happily jam the turbo four in my Colorado.

 

[Kensington]

I'd happily jam the turbo four in my Colorado.

I'd be surprised if that motor doesn't eventually make it into a version of the Colorado.

Shit, the only engine option on the new Ranger is a turbo 4

 

[Kensington]

Koenigsegg has a cam-less prototype running around. In a Saab last I read. That was a while ago though.

Yeah, I've been trying to keep my eyes open for updates, but haven't heard about anything...they were running electronically controlled pneumatic actuators, not electric actuators from what I remember.

EDIT:

Apparently electronic, hydraulic, pneumatic actuators

Freevalve seems to be taking an all-of-the-above approach with its so-called pneumatic-hydraulic-electronic actuators. But air does the work. The team first employed this solution on the Scuderi Split-Cycle air-hybrid engine I first covered in June 2006. That design demanded valves that opened far more quickly than a traditional cam-driven design could manage. Because the engine recovered braking energy as compressed air, that energy source was abundantly available. So compressed air opens the valve almost instantly, electronically controlled hydraulic pressure holds it open, a coil spring closes it, and passive hydraulic pressure cushions its "landing." An electric coil provides highly precise sensing of each valve's position.

 

[BeerOrGasoline]

Didn't see it posted but the Turbo 4 got EPA numbers of 20/23 & only on the 2wd version so expect 4WD to be lower naturally.

https://www.caranddriver.com/news/c...ts-optional-turbocharged-four-cylinder-engine

 

[Yaj Yak]

Why u won't buy one.

yeah so you

Yeah, I've been trying to keep my eyes open for updates, but haven't heard about anything...they were running electronically controlled pneumatic actuators, not electric actuators from what I remember.

EDIT:

Apparently electronic, hydraulic, pneumatic actuators

i think there's a thread on here for this

Didn't see it posted but the Turbo 4 got EPA numbers of 20/23 & only on the 2wd version so expect 4WD to be lower naturally.

https://www.caranddriver.com/news/c...ts-optional-turbocharged-four-cylinder-engine

that's disappointing, right?
i mean, isn't that just about what a 5.3 gets?

 

[Stink Star]

We just got our “essential tools” (tools the dealer is required to have) for the 2.7 turbo the other day. Big beefy camshaft holding tools and crank holding tool. Hopefully I’ll never have to use them

 

[EmersonHart13]

Yeah 21 combined isn't bringing anything to the market...

 

[Bub]

Yeah 21 combined isn't bringing anything to the market...

Unless it's stupid cheap vs. 5.3

 

[Yaj Yak]

i feel like the v6 still made plenty of sense in that case then

 

[Yaj Yak]

id rather everything have gotten the ten speed honestly.

 

[EmersonHart13]

Truth. Spend the money elsewhere....

#gottacopyecoboost

 

[Bub]

i feel like the v6 still made plenty of sense in that case then

The price spread needed to be more.

id rather everything have gotten the ten speed honestly.

Agreed.

 

[EmersonHart13]

Buncha GM humpers hating on GM right here

 

[Bub]

Buncha GM humpers hating on GM right here

Not hating. They still have my business just thinking that with my experience in automotive marketing I can do it better than GM

 

[Lead Pipe]

I guess the potential for more power is higher for 4. Tune only should make it scoot compared to the V6.

 

[Kensington]

Yeah, more than a bit curious what the point of the turbo 4 is with those MPG numbers...it seems like it's no more economical than the V6, it'll likely be at a price premium over a V6, but will it have the same power stock v stock over the V6? Maybe when more specs come out, it'll make more sense, but it just doesn't right now...

 

[Yaj Yak]

unless some GMPP tune makes it 400hp or something

like [MENTION=3061]Lead Pipe[/MENTION] was alluding to

 

[Kensington]

Yeah, turbo vehicles always going to be more tuneable...but I don't think that was really a big consideration by GM when they were developing it. If it's a direct competitor to an NA V6, it would probably be a volume seller. But why make your volume seller more complicated, more expensive, and no more efficient?

 

[Yaj Yak]

Yeah, turbo vehicles always going to be more tuneable...but I don't think that was really a big consideration by GM when they were developing it. If it's a direct competitor to an NA V6, it would probably be a volume seller. But why make your volume seller more complicated, more expensive, and no more efficient?

it says it's an entry level engine on some trim options.

maybe itll tow like a champ

or better yet, i mean, they keep hyping that 0-60 will be under 7 seconds, which the 4.3 6 trucks 100% aren't doing.

so maybe that's it... some performance, but v6 fuel economy?