2.7 turbo in Silverado?

[Wylie6G72]

I saw my first one in the wild a few weeks ago as it drove past my house. I have to say it's strange to hear a whining four cylinder with a whining turbo coming from a full-sized pickup. Honestly, I haven't read any complaints about mechanical issues on them, but they're pretty young. An article I read noted that the engine was "overbuilt built like a diesel". Sounds like Chevy figured they better get this one right. I think I'd enjoy it more in the Canyon.

 

[RooflessVW]

I saw my first one in the wild a few weeks ago as it drove past my house. I have to say it's strange to hear a whining four cylinder with a whining turbo coming from a full-sized pickup.

I agree, but it's better than my old C10. The 305 sounded great, but had a 0-60 of "maybe"

 

[Delta]

I saw my first one in the wild a few weeks ago as it drove past my house. I have to say it's strange to hear a whining four cylinder with a whining turbo coming from a full-sized pickup. Honestly, I haven't read any complaints about mechanical issues on them, but they're pretty young. An article I read noted that the engine was "overbuilt built like a diesel". Sounds like Chevy figured they better get this one right. I think I'd enjoy it more in the Canyon.

I live on a busy road right past a hill. I hear a vehicle with a turbo whistle wound up and look and it's a Chevy 1500. Quite a few around here. Pretty weird to hear/see, I'm expecting some little turbo car, but not it's a full sized truck!

 

[I<3oil]

back when GM offered the 8.1 gasser and the Allison behind it, and the D max first came out, the gasser beat the diesel by 1 second in the drag race.. diesels wind up slower and are far more rpm limited than a gasoline engine. so that is part of the explanation.

To be fair, the first Duramax had 310hp/520tq lol whilst the 8100 was 340hp/455tq with an extremely favorable powerband

 

[I<3oil]

Why do these engines always seem to cut off the same cylinders rather than vary the cylinders that get cut off? He stated in the video that the center two cylinders can cut off. Why not vary the cylinders? Seems to me it would be better on thermal management and such varied, rather than the same cylinders?

That's what DFM was designed to do and a favorable feature over the AFM predecessor

 

[Snagglefoot]

When will we get one in a crate?

It will look cool in a 32 coupe.

 

[hemioiler]

Here are the torque curves for the Chev 2.7 T four cylinder and the Ford Eco boost 2.7 V-6. Chevy purposely produces a very flat curve while Ford’s rises with RPM before falling off. Not sure why the Chevy uses a four, perhaps for lower manufacturing cost ie one turbo vs two, two fewer cylinders, and potentially less weight. I always thought a V-6 was a smoother running engine unless they did something with the balance shaft in the 4 banger.

View attachment 181488View attachment 181489

That is the old 2.7. The revised one is now putting out 430 lb/ft which is pretty impressive.

 

[Snagglefoot]

That is the old 2.7. The revised one is now putting out 430 lb/ft which is pretty impressive.

I dug up the curve for curve for the new one. It is absolutely different, which a rising and falling torque with rpm, and a very strange flat HP near the end of the curve from 4000 to 5600 rpm. It looks a lot more like the ecoboost curve now. The 430 lb ft was only for a brief moment. I hope the curve is correct.

 

[MSCH]

[QUOTE="I To be fair, the first Duramax had 310hp/520tq lol whilst the 8100 was 340hp/455tq with an extremely favorable powerband
[/QUOTE]
yeah, I know... just thinking aloud what used to be considered quite powerful
is nowadays considered to be a dog.

I had a 91 Chebby 3500 DRW with the 7.4 aka the 454, 410 gears and it was the mag daddy of tow vehicles back then.
it had a whopping 235hp and 395 lbs ft of torque... had a 84 F600, 370 2V 2 speed rear axle, 5 speed trans. I dont think that truck was 170hp.. had a flatbed F350 DRW, 300 six and a 4speed manual tranny... 10 foot flat bed.. thing was slower than dirt but it would carry anything you ever could fit on the back of a truck.. but it wasn't doing it in a hurry.

fast forward to today and that 6.6 gas engine has 400 hp and 450torque, a 10 speed tranny and people will say it is dog.

 

[Brons2]

There is now a derivative 2.5 version of this engine in the Traverse. Less tq, little more HP.

 

[RooflessVW]

It will look cool in a 32 coupe.

I was thinking my Trooper

 

[Brons2]

yeah, I know... just thinking aloud what used to be considered quite powerful
is nowadays considered to be a dog.

I had a 91 Chebby 3500 DRW with the 7.4 aka the 454, 410 gears and it was the mag daddy of tow vehicles back then.
it had a whopping 235hp and 395 lbs ft of torque... had a 84 F600, 370 2V 2 speed rear axle, 5 speed trans. I dont think that truck was 170hp.. had a flatbed F350 DRW, 300 six and a 4speed manual tranny... 10 foot flat bed.. thing was slower than dirt but it would carry anything you ever could fit on the back of a truck.. but it wasn't doing it in a hurry.

fast forward to today and that 6.6 gas engine has 400 hp and 450torque, a 10 speed tranny and people will say it is dog.

Drove a 370 4V moving truck once way back in the 80s when I was a teenager, one of those old school flat nosed Ford CoE. It was able to get up a hill on the interstate at 55 fully loaded, that I was thinking for sure I would have to shift down for. Foot flat to the floor of course and secondaries a-screaming.

Also 3800 RPM in the low 60mph range, IIRC, tach only went to 4000. Lol. 5-6 mpg. Gas was 69 cents a gallon though. Good times.

 

[MSCH]

Drove a 370 4V moving truck once way back in the 80s when I was a teenager, one of those old school flat nosed Ford CoE. It was able to get up a hill on the interstate at 55 fully loaded, that I was thinking for sure I would have to shift down for. Foot flat to the floor of course and secondaries a-screaming.

Also 3800 RPM in the low 60mph range, IIRC, tach only went to 4000. Lol. 5-6 mpg. Gas was 69 cents a gallon though. Good times.

yes. you really couldn't kill those.. mine was tired.. they had an electric governor on them, but if you pulled the fuse, there was no more governor. didn't accomplish much really except let it scream even more..

I pulled construction equipment with ours.. say 15000 lbs load on a trailer..
It did zero to 40 Ok, but after that it took a couple miles for it to get to top out.
still remember splitting the shifts.. one of them you didn't use... might have been 4hi or it was 5 low..drove another one for awhile had an Allison.. and thought man, this is EZ.

 

[JTK]

Why are pickups moving to these 4cylinders in the base models? There is no real world mpg gain and that is the only benefit to the consumer? If there is no mpg gain then it cant be for CAFE reasons? What gives?

I think MPG is definitely a factor, but emissions control is the bulk of why they're going to small displacement, forced induction, DI engines.

Our plant 2.7T silverado gets started/stopped probably 20-30x a day and idles around our ~30 acre plant at 10mph. It occasionally sees some open road, picking up lunch, etc. I'm curious how long before it has a problem, if any.

 

[I<3oil]

yeah, I know... just thinking aloud what used to be considered quite powerful
is nowadays considered to be a dog.

I had a 91 Chebby 3500 DRW with the 7.4 aka the 454, 410 gears and it was the mag daddy of tow vehicles back then.
it had a whopping 235hp and 395 lbs ft of torque... had a 84 F600, 370 2V 2 speed rear axle, 5 speed trans. I dont think that truck was 170hp.. had a flatbed F350 DRW, 300 six and a 4speed manual tranny... 10 foot flat bed.. thing was slower than dirt but it would carry anything you ever could fit on the back of a truck.. but it wasn't doing it in a hurry.

fast forward to today and that 6.6 gas engine has 400 hp and 450torque, a 10 speed tranny and people will say it is dog.

yessir! i think things do change with time too though....14.5s in the 1/4 for a GTO Judge was fast back in the day. Nowadays, you have family sedans with V6s that are just as fast or faster. lol

 

[97prizm]

I find the idea of a small, high powered engine, in a large vehicle, rather interesting from an engineering point of view.

The reviews are generally positive, and there is no question the engine's output is adequate and that it can tow a modest load without issue. Even though the MPG seems to be lower than the V8 in all conditions. And that the well tamed 4 cylinder intake/exhaust drone can still be bothersome to some, myself included.

However, don't expect it to launch hard, watch the first 20 seconds of this video to see how the 4cyl performs. Note: it only hits 88-89MPH trap speeds, so you would have to look long and hard to find a slower new vehicle.

I wonder how it would compare with the V-8 as you add altitude? I live at 5050 above sea level. I wonder how it would do say with a load going up I-70?

 

[Braapdaddy]

Update on this truck ......currently at 12k miles
It's my sons company truck for our bussines but I do drive it from time to time

At the second oil change(10k) it was down 1/2 a quart on the stick

Plenty of torque for what we do with it plenty capable for a half ton

Definitely idles about 1.5 to 2 hours a day during the lunch breaks air blasted watching YT and will do the same during the cold winter

Only real gripe so far is the oil drain plug is a real gusher and the start stop needs a permanent override

Next up is all 3 gearboxes changed out at 15k as well as the transmission fluid then nothing planned other than motor oil and filters up to the 75k mark

 

[2002 Maxima SE]

Duplicate

 

[Zee09]

I'd buy one if I was in the market for a truck.

 

[2002 Maxima SE]

Update on this truck ......currently at 12k miles
It's my sons company truck for our bussines but I do drive it from time to time

At the second oil change(10k) it was down 1/2 a quart on the stick

Plenty of torque for what we do with it plenty capable for a half ton

Definitely idles about 1.5 to 2 hours a day during the lunch breaks air blasted watching YT and will do the same during the cold winter

Only real gripe so far is the oil drain plug is a real gusher and the start stop needs a permanent override

Next up is all 3 gearboxes changed out at 15k as well as the transmission fluid then nothing planned other than motor oil and filters up to the 75k mark

I've been looking at this product for my wife's next Outback.

https://www.autostopeliminator.com/