My GMC 2.7 consistently gets 24 to 27 mpg on the interstate.

Best intro ever seee nice haha always good stuff

Will this engine work in a Truck?

Dual-volutin' and high-falutin'

I'm intrigued. I haven't been this interested in a caddi since the catera.

At the time I was going to purchase my Silverado, I was confused between 5.3 V8 and this 2.7 Turbo. I'm so glad I got the 5.3 V8 😉 Good luck if something happens to that turbo with 1 millimeter gap. A small chip from the engine can change it to 2 millimeter including thousands of dollars cost of repair/replacement 🤪

Just like first generation ecoboost, no duel port injection=sludged up intake valves

4G92 MIVEC MD

Wow, I learned a lot for sure about this 4 cylinder engine. With that gas mileage I'm just not sure of the reason to choose it over the V-6 or V-8 . I see now GM moved this 4 cylinder as a build choice on the 2021 Silverado Work Truck model. Most fleet owner want the basic 6 cylinder is my guess.

This probably wins the award for the most unnecessary moving parts on an automobile engine yet created! I'll stick with my reed valve engine that gets 2 mpg less, sounds amazing @160,000 rpm, has only 2 moving parts and lasts forever. :-)

If I was a GM powertrain design engineer, I would be sooooo wanting to develop an engine that's basically double this engine. 2.7x2=5.4, so GM could essentially develop a twin turbo dual valloot 5.3 Or 4.8 V8, now THAT would be an awesome engine.

So it basically has double V-tec, that's cool.

In conclusion, the math ain't mathing.

Is there a catch can on this?

What a load off bulls**t... A porsche 944 turbo from the 80’s has a 3L 4 cilinder engine with a better fuel economy then this crap.

So its just a twin scroll, ok.

Is that engine for a TRUCK!?

Correction. There was a 2.9 liter four cylinder in the first generation of the GMC Canyon/Chevy Colorado

porsche had a 3,0 litre in the 968

Time to "spool the turbo" on a 5.3L? Zero.

Which is why I'm not convinced smaller and more advanced engines are necessarily better. Even IF they were to get better fuel economy by a good margin the amount the owner will be spending on out of warranty repairs and even maintenance will mitigate any sort of savings on fuel. Modern engines have direct injection but as a consequence they get carbon buildup which a port injected motor does not get so there's money that needs to be spent. Then there's the turbos which have seals that eventually fail along with things like the wastegate not closing. Also, modern engines seem to consume lots of oil between changes so now you have this expensive oil being consumed which means clogged PCVs and more carbon buildup to deal with. They also have high pressure injectors that fail easily compared to port injectors. I'll keep my port injected, non turbo, non direct injection car for as long as I can.

More cams instead of freevalve.... Shame on you Chevrolet!

Very interesting but why does the v8 get better highway mpg? Do electric (SynRM) motors have better torque and greater efficiency?👍 Thumbs up and subscribed!

I still have an idea about eliminated the turbo by using the same piston to eliminate the log to have instant power

This would be a very interesting engine in a mid size, body-on-frame SUV. Or in a Colorado ZR2. I bet it would be pretty fun to drive and would get a lot better fuel economy than it does in the silverado.

New bmws now have the timing chains located near the transmission

there is the 3.0 engine of the fiat ducato

GM gives you huge incentives to buy their trucks with this turbo 4. I wonder why.

Had a Chev. Colorado with a 2.9 L 4 banger.

Truck engines make great performance car engine platforms...... just ask the 2005-2006 era Ford GT and S197 GT500 Mustang...and maybe even the latest Ecoboost V6 powered Ford GT Supercar. "Blow and Go" engine repurposing. Genius !

Porsche 968 was a 3.0 4cylinder but not in production any more.

Great explanations on the volute and twin scroll turbos. I never knew any of that.

All this showed me is GM has no clue what there doing!

Russian UMZ 4216 engine, 4 cyl 2.89l, still produced)

That's not a large 4 cylinder. There are bigger out there. 4-5 L engines.. ahh. You are taking about petrol engines. I don't waste my time with them

Well a Cadillac is a truck for hauling older people lol

I worked at a Chevy dealership in service. I noticed one thing in particular, Chevy 4 cylinders are SH!T. The V8’s are really their good motor anymore and even then, I’ve seen a lot that have issues that GM refuses to fix

Yes for truck.. truck

And in the end you have a electromechanical nightmare with many recalls and repairs in the future. No thanks!

I wish GM would drop Cadillac already and focus on making Buick better instead of demanding Buick not outperform caddy cuz it’s the “luxury brand” Cadillac sales annually worldwide: 200k😬 Buick: 1.2million💦😫

Chevys suck

Ford did it first, 6.4 turbo.

Why am I watching this. I dont even know anything about engine.

This is nut's!

I recall the Mitsubishi Starion also had a 2.6L turbocharged "truck" engine. Had a restrictive over the valvecover intake line that when replaced with something less restrictive, and with a little sensor manipulation could run up to 14 psi with premium gas. Still slow to spool up, never got real boost in 1st gear, but 2nd gear up, it was a beast! Thanks for bringing back the memories!

Still don’t care 🤷‍♂️ I’ll stick to my old suburban that can book it to 100 mph and still want more .

Main reason to make this engine (IMHO)?: it is cheaper to build. 4 less pistons, rods, bearings, GDI injectors & ignition coils, smaller crank, 1 less cylinder head and simpler engine block.

I want to see the tork and Hp sheets side by side. The turbo might be better. Stop trying to reinvent the wheel!

Nothing like moving forward to go backwards! LOL

Porsche had a 3.0L Inline-4 in their 944 and 968, Pontiac Tempest had a 3.2L Inline-4 a decade or two before it and the Fiat S76 had a whopping 28.4L Inline-4 long before they were even thought of.

Did GM make this engine out of metal this time? Or can we expect it to blow up at around 70K?

I'm a auto tech and yea i'm with u on that some of these engineers really are confusing

bmw spools fast, 1300 rpm

Need two of those turbos in a v8

Try to change that timing chain in 100,000 miles.

Engineers are in the business of producing migraines, anxiety, and blood pressure spikes in mechanics.

I feel smarter already

You might find this interesting.. My boat has 3.8L 4 cylinders, it's essentially a 440 ford cut in half.

Chevy 2.9 L inline 4

We picked up a 2.4 d ohc 4 in a voyager 02 low miles it's quite fast and it gets 40mpg highway no problems 1 year 🤗

This video is a fever dream while I'm also having a stroke. Thanks, would recommend

I believe Mazda has a 3 liter 4 cylinder gas engine... maybe.

CTSV’s have always had a truck engine in it so it only makes sense for them to want a ctsv to go fast.

Porsche calls their EV turbo....

Thank u!

The hemi6 was designed for industrial and truck applications.

Hi torque at low rpm is just the trick for luxury cars. High revving engines make buzzy noises that are not luxurious. Anything is better than a 90- degree six cylinder engine.

In short, this engine will not be worth repairing once it's clapped out.

Why can't we ditch the reciprocating engine and go onto a turbine engine?

The variable cam profile is old technology, european cars have had this over a decade GM is way behind.

Daniel Nelson

3 måneder siden

I don't think anyone said it was brand new for this engine? It's just technology that is still relevant in certain applications... Don't know what you're on about. Turbocharging is old technology, European cars have had this for over a decade.. GM is way behind. See how ignorant that sounded? Yeah that was you basically.

Seems like a bad thing, like the great deactivating cylinders in a Northstar. They should fix what they make first before pushing tech like audi does and depletes reliability.🤔

Stick with a v8.

It's nice, but I'm waiting for the "Big Galoot" turbo.

UUUUGH if you can drive it on a normal license, IT IS NOT A 'TRUCK'

MASSIVE 2.7 L 4 CYLINDER Laughs in Porsche 944 3.0

Looks like a lot of extra rotating parts that wear and or can fail, not to mention the extra weight. Should this engine be named Northstar 2?

Regardless of gas mileage, that ct4-v is a BAD ASS car.

Lol. Shutting cylinders off probably makes the turbo less efficient

Oh, I drive a 2000 4 cylinder Honda Accord still. It could probably use some more throttle or torque but that would probably be electrical work that never made it into a 4 cylinder.

Interesting engineering but how much inefficiency is introduced by needing to include balance shafts? They must be responsible for some losses? Also given the resultant efficiency, which is worse than the V8 option, perhaps they should have gone with a smaller capacity engine with more boost pressure. Perhaps even two turbos (one large Volute turbo and one small conventional turbo). I guess what I'm saying is the result doesn't justify the engineering effort in this case. Perhaps the engineering decisions were driven by marketing and budget rather than performance and efficiency, who knows?

Good luck convincing the public that a simple, pushrod v8 with far fewer parts and far less complexity achieves better mileage. Also: *Ford EcoBoost has left the chat*

Some of us learned Newtonian physics and others of us continued on to be schooled in the physics of relativity. It seems that the engineers at GM learned their brand of physics from Seth Godin.

Good demonstration though

To make a muscle car you use a big block or truck engine

I can't wait to watch hoovies garage 20 years from now when he covers this engine and all of its problems.

Hm. Not impressed.... I’m doing 28-30+mpg on the HWY in my 2005 Lexus LS430 (V8 OFCOURSE) with 210k miles on the engine. And around town I average 19-20; with NO turbos.

Marine engines. GM mercruiser 3.0 4cyl Go's back to the 80's

Try a different strain, one not so creative. Try something that will let get by with only 1 marker and straight lines. Another very good video, videos good.

Convolution induction engine

When chevy Colorado replaced the s10. It has a 2.7L 4 cylinder. They later upgraded it the 2.9L cylinder.

I bet it will hold a ton of power with a big turbo, considering its ment to handle so much power at low rpm its gotta be strong

The biggest gas 4cyl I've ever seen is the mercruiser 3.7L inline 4. Although it was only used in marine applications to my knowledge.

Soooooo where does the wastegate fit into all of this? Or am I blind

if the exhaust valves are closed on the low end, wouldnt that hurt the piston, rings.or head gasket....from pressure build up?

Techs in the service departments are gonna LOVE it!

Caditruck or Truckillac?

Simply put it has the exhaust manifold built into the turbo housing!!!

At 3:10 he says “CTS4-V” and as a CTS-V owner/4 cylinder hater I am *triggered*.

Truck truck

mercury put a 4L 4cyl in lots of boats. i blew one up shattered the output shaft end of the block, broke the cam in half. blew the starter right off the block .. epic fail