PHEV

[Elpresidente]

Been thinking about this a 5.3L with a PHEV battery would be an okay option.  Its just GMC has low Gwvr.
 

 

My 2020 AT4 6.2L only has 1398lbs pounds

of payload.  Chevy/GMC with a 2.7L could save 300lbs about the mass of a 25kwh battery aka 40 miles electric range.  They would have to increase the gwvr to 7500 pounds to add probably the other couple hundred pounds of electric motor, regen equipment, inverters, computers, wiring etc.

 

i get 14mpg.  With a 2.7L one would probably only on the above 500+ lbs get 16 to 17mpg (realistic). With regen add 45% lets say 24mpg rounding up with recouped electricity.  With alot of short trips this would be about 50% EV and 50% gas for me; as the solar panels are making free electricity.  As well could buy 87 instead of 91.  So my price for fuel would end up being 25% to 33% now.

 

it sure doesn’t make sense adding a out a $400 a month new vechicle payment; probably the difference between this current paid off truck and a new one to save $100 in fuel.

 

but excited about the PHEVs.  This is really the only forum thread out there.

 

Ford has higher GVWR ratings on its f150 i think they were like 7800 a couple years back with the high payload option.  Give the PHEV a dynamic suspension option.   It will all work out.

Edited November 20, 2024 by Elpresidente

[Elpresidente]

Some other people are finally talking about this topic.  Is it looking like it will now be 2 more years until we have the product I want

 

https://gmauthority.com/blog/2024/11/2027-silverado-sierra-engines-what-will-the-powerplant-lineup-look-like/

 

There are good set of comments talking about this same topic at the bottom of this link.

 

I have come around.  Done a couple months of youtube reviews on the 2.7L and I think I like it.  I mean I love my current 6.2L although with supporting a family of 5 the 2.7L PHEV option would be a great option.

We have solar panels, and enough electricity for about 18,000 miles per year on a VW ID4/Chevy Blazer sized SUV.  So really looking forward to this PHEV option.  I think the 2.7L is probably the only platform that will allow PHEV option, one needs the weight savings or your not going to have any payload in a 1500.

Additionally hoping they drop this 2.7L PHEV in a Suburban as well.  With 5 people in the family as of next year; want to buy an 7 seater as we always end up driving multiple vehicles. Chevy for 2025 is dropping the current 2.7L in the Suburban for China, so there is a good chance in the next release the US will get it as well.  I know its going backwards from an EV to a PHEV; but if I get 2 PHEV then we can use the electricity from the solar panels wisely.

 

Been reviewing the 3.0L diesel; didnt know the Chevy required "Top Tier" Diesel; and it is no where near me; 60 miles away is the closest.  By the time one buys DEF, and then fuel lubricant for each tank; plus the higher maintenance costs and the exhaust system risks.  Its just not worth it.

I usually consider myself open minded; I really wanted the 3.0 Diesel when I bought my truck just it was brand new and didnt want to take the chance.  the 6.2L is amazing to drive but I have gotten 14.0 -> 14.5mpg over 50K miles; and it uses 91.  In California its just to much $ per mile.

 

Come on GM.  Tell us a little about the future!
 

[newdude]

10 minutes ago, Elpresidente said:

I have come around.  Done a couple months of youtube reviews on the 2.7L and I think I like it.  I mean I love my current 6.2L although with supporting a family of 5 the 2.7L PHEV option would be a great option.

Been reviewing the 3.0L diesel; didnt know the Chevy required "Top Tier" Diesel; and it is no where near me; 60 miles away is the closest.  By the time one buys DEF, and then fuel lubricant for each tank; plus the higher maintenance costs and the exhaust system risks.  Its just not worth it.

I usually consider myself open minded; I really wanted the 3.0 Diesel when I bought my truck just it was brand new and didnt want to take the chance.  the 6.2L is amazing to drive but I have gotten 14.0 -> 14.5mpg over 50K miles; and it uses 91.  In California its just to much $ per mile.

 

Come on GM.  Tell us a little about the future!
 

 

 

 

GM has always for years now recommended Top Tier fuels.  They are not a requirement.  Gas and diesel.  Shouldn't have let that impede your purchase decision.

 

I think the 2.7 makes the most sense to hybridize or PHEV.  Its light, makes V8 horsepower and diesel torque, with a nice electric motor strapped in with it?  Would be a rocket ship. 

 

Knowing GM though, they'll probably 5.3 it like 2 of the 3 hybrid trucks they did.  

Edited December 6, 2024 by newdude

[redwngr]

3.0 is the mileage king.

I had a 5.3 NHT and 6.2 that both got 19-20

Life of vehicle, one is in the 29's

[Elpresidente]

Have gone back and read the press releases a couple times about the investment in the 6th gen V8 and the phev drivetrain.

 

it sounds like they will hybridize a v8.  Just wondered how other read it.

 

anouncements is the 6th gen will get about a 6% fuel efficiency gain which is really not very much probably 1 mpg combined.

 

true hybrid with regen brake and a electric motor assist will increase by 45% the mpg.

 

gm get this right.  I dont want to buy a RAM.  But free fuel for 7 years or 80% from my solar panels will make the difference 

[asilverblazer]

I think the best solution is...

The EV Silverado is not the same truck as the ICE Silverado. It should be. Just like how Ford converted the lightning. They should have taken the ultium battery packs and squeezed them in around the frame rails. Throw the front and rear drive motors in and call it a day. That storage compartment at the front? Totally encapsulated prepackaged range extender. It doesn't matter what it is use the 1.2l 3 cylinder. All it does is sit up there and hum away at fixed RPM recharging the batteries, when the grid, regenerative braking, etc. isn't recharging them. The ultium battery pack that is so big and heavy - halve it. 100 miles of chargeless range is fine. Especially, if I know that my little generators is going to pick up the slack. The generator is going to re-use all the refueling infrastructure in place too. Waiting at a charger for hours, nope, re fuel the generator in 15 minutes and go on. The generator will never directly power the wheels, its power output can be minscule. You never need all 400+ hp of any engine all the time now. Coasting, idling, cruising, parked - it recharges batteries; as long as it can keep the batteries from fully depleting.

 

 

[KARNUT]

10 minutes ago, asilverblazer said:

I think the best solution is...

The EV Silverado is not the same truck as the ICE Silverado. It should be. Just like how Ford converted the lightning. They should have taken the ultium battery packs and squeezed them in around the frame rails. Throw the front and rear drive motors in and call it a day. That storage compartment at the front? Totally encapsulated prepackaged range extender. It doesn't matter what it is use the 1.2l 3 cylinder. All it does is sit up there and hum away at fixed RPM recharging the batteries, when the grid, regenerative braking, etc. isn't recharging them. The ultium battery pack that is so big and heavy - halve it. 100 miles of chargeless range is fine. Especially, if I know that my little generators is going to pick up the slack. The generator is going to re-use all the refueling infrastructure in place too. Waiting at a charger for hours, nope, re fuel the generator in 15 minutes and go on. The generator will never directly power the wheels, its power output can be minscule. You never need all 400+ hp of any engine all the time now. Coasting, idling, cruising, parked - it recharges batteries; as long as it can keep the batteries from fully depleting.

 

 

My 8750 watt inverter will run 15 hours on 6 gallon of gas. How many watts will it take to put in more power than you draw out. That would determine what size batteries you would need. The efficiency of the charging vs battery draw is the determination of the battery range. I could live with 300 miles of range with a 20 minute charging time for an additional 200 miles of travel. Of course they cost too much anyway. 

[Elpresidente]

1 hour ago, asilverblazer said:

I think the best solution is...

The EV Silverado is not the same truck as the ICE Silverado. It should be. Just like how Ford converted the lightning. They should have taken the ultium battery packs and squeezed them in around the frame rails. Throw the front and rear drive motors in and call it a day. That storage compartment at the front? Totally encapsulated prepackaged range extender. It doesn't matter what it is use the 1.2l 3 cylinder. All it does is sit up there and hum away at fixed RPM recharging the batteries, when the grid, regenerative braking, etc. isn't recharging them. The ultium battery pack that is so big and heavy - halve it. 100 miles of chargeless range is fine. Especially, if I know that my little generators is going to pick up the slack. The generator is going to re-use all the refueling infrastructure in place too. Waiting at a charger for hours, nope, re fuel the generator in 15 minutes and go on. The generator will never directly power the wheels, its power output can be minscule. You never need all 400+ hp of any engine all the time now. Coasting, idling, cruising, parked - it recharges batteries; as long as it can keep the batteries from fully depleting.

 

 

I agree 1 chassis.  I agree a range extender.  For the PHEV and ICE options for 2027 hoping its the other way around.  
 

Fit the ICE powertrain in modern EV chassis.  They are stronger better in alot of ways.

 

although there is alot of talk now that ford will cancel the lightning.  And in a couple years build a EV range extender like you said above with 50% of the batteries 

[Elpresidente]

3 hours ago, KARNUT said:

My 8750 watt inverter will run 15 hours on 6 gallon of gas. How many watts will it take to put in more power than you draw out. That would determine what size batteries you would need. The efficiency of the charging vs battery draw is the determination of the battery range. I could live with 300 miles of range with a 20 minute charging time for an additional 200 miles of travel. Of course they cost too much anyway. 

Did the math in my head.  I was going to say 9kWh per hour would be the draw for a 1500 sized pickup with 7000lbs to 8000lbs of trailer behind on flat ground.  

 

In the most extreme Rocky Mountains uphill scenarios 10 or 11kWh would probably be the engineering requirement with a little safety overhead.

after i wrote this looked up the ram charger spec.  Confused on why its so high? 130 kilowatts..

 

Edited February 19, 2025 by Elpresidente

[Elpresidente]

Probably everyone saw this.

 

https://gmauthority.com/blog/2025/03/next-gen-2027-chevy-silverado-prototype-spied-testing-photos/amp/
 

I doubt gm will do this.  But i really hope the phev comes with the 3.0L disesel and the toeing package is standard with this configuration.  Aka a little more spring and D instead of C rated tires.

 

i dont tow alot; but i have a travel trailer and its 30 Feet long and 6300 lbs unloaded.

 

day to day my 6.2L is fun; but the fuel bill is brutal/irresponsible.

 

GM a PHEV 2500 with a 6.6L gas would be great.

Edited March 25, 2025 by Elpresidente

[newdude]

3 hours ago, Elpresidente said:

Probably everyone saw this.

 

https://gmauthority.com/blog/2025/03/next-gen-2027-chevy-silverado-prototype-spied-testing-photos/amp/
 

I doubt gm will do this.  But i really hope the phev comes with the 3.0L disesel and the toeing package is standard with this configuration.  Aka a little more spring and D instead of C rated tires.

 

i dont tow alot; but i have a travel trailer and its 30 Feet long and 6300 lbs unloaded.

 

day to day my 6.2L is fun; but the fuel bill is brutal/irresponsible.

 

GM a PHEV 2500 with a 6.6L gas would be great.

 

 

A diesel PHEV is unlikely but would be wild if they did it.  Expect a gas PHEV if they do it.  5.3 (or whatever rumored displacement change base V8) or 2.7 are the most likely candidates IMO.  

Edited March 25, 2025 by newdude

[customboss]

1 hour ago, newdude said:

 

 

A diesel PHEV is unlikely but would be wild if they did it.  Expect a gas PHEV if they do it.  5.3 (or whatever rumored displacement change base V8) or 2.7 are the most likely candidates IMO.  

2.7 de rated makes sense and I expect them soon. 

[Elpresidente]

2 hours ago, newdude said:

 

 

A diesel PHEV is unlikely but would be wild if they did it.  Expect a gas PHEV if they do it.  5.3 (or whatever rumored displacement change base V8) or 2.7 are the most likely candidates IMO.  

The new V8s GM keeps talking about are max 6% more fuel efficient; that is their marketing pitch which really means that on a 5.3L they get 18mpg in the city vs the current 17mpg.  (+1mpg better).

Not sure they can make a PHEV hybrid V8; even with the max trailering package. 1500 does not have the payload.  Adding a 20 kwh battery is going to be 300lbs with all the electronics (estimating about 40 miles of EV range).  My AT4 now only has 1390 lbs payload.  A pickup with 1090 payload (like the F150 raptor cannot tow anymore; cannot pull a normal sized travel trailer with a family of 4)  Say about 6500lbs empty weight 30 feet long.  A standard Bunkhouse model with 2 bunk beds for kids in the back.

https://www.gmc.com/content/dam/gmc/na/us/english/index/about/download-brochures/2024-models/GMTR23CT300_2024_SIERRA_LD_FO_011024_FINAL.pdf

 

A lower trim maybe a elevation or LT with a 2.7L and the max trailering package maybe one can get it to 1500lbs payload with a PHEV.  Although all the money is made with Denali models.  No manufacturer today even tries to add functionality to anything other than the most profitable trims.

 

Was excited about this option.  But it now says the PHEV will become available in the first 2 years of launch so its probably going to be a 2028 or 2029 model.  Crazy that it takes 4 to 5 years to add a battery to a power train when the truck doesnt change and the power train really doesnt change.  (the major packaging).  In the article below is says 2 more years.
https://gmauthority.com/blog/2025/03/next-gen-2027-chevy-silverado-prototype-spied-testing-photos/

If they do release a V8 PHEV version; maybe they will release a 6.6L gas PHEV version.  Would get a 6.6L up to about 21mpg combined in real world driving on 87 octane.

[newdude]

32 minutes ago, Elpresidente said:

The new V8s GM keeps talking about are max 6% more fuel efficient; that is their marketing pitch which really means that on a 5.3L they get 18mpg in the city vs the current 17mpg.  (+1mpg better).

Not sure they can make a PHEV hybrid V8; even with the max trailering package. 1500 does not have the payload.  Adding a 20 kwh battery is going to be 300lbs with all the electronics (estimating about 40 miles of EV range).  My AT4 now only has 1390 lbs payload.  A pickup with 1090 payload (like the F150 raptor cannot tow anymore; cannot pull a normal sized travel trailer with a family of 4)  Say about 6500lbs empty weight 30 feet long.  A standard Bunkhouse model with 2 bunk beds for kids in the back.

https://www.gmc.com/content/dam/gmc/na/us/english/index/about/download-brochures/2024-models/GMTR23CT300_2024_SIERRA_LD_FO_011024_FINAL.pdf

 

A lower trim maybe a elevation or LT with a 2.7L and the max trailering package maybe one can get it to 1500lbs payload with a PHEV.  Although all the money is made with Denali models.  No manufacturer today even tries to add functionality to anything other than the most profitable trims.

 

Was excited about this option.  But it now says the PHEV will become available in the first 2 years of launch so its probably going to be a 2028 or 2029 model.  Crazy that it takes 4 to 5 years to add a battery to a power train when the truck doesnt change and the power train really doesnt change.  (the major packaging).  In the article below is says 2 more years.
https://gmauthority.com/blog/2025/03/next-gen-2027-chevy-silverado-prototype-spied-testing-photos/

If they do release a V8 PHEV version; maybe they will release a 6.6L gas PHEV version.  Would get a 6.6L up to about 21mpg combined in real world driving on 87 octane.

 

 

From a weight aspect in terms of added PHEV weight but keeping a strong payload, that's the best case for the 2.7 as its the lightest powertrain right now.  Its 80lbs lighter than the 4.3 it replaced which is approximately 400lbs.  My 2.7 crew cab 4x4 has a payload of 1980lbs.  Take 300lbs out that goes to 1680lbs.    

 

 

[asilverblazer]

On 2/18/2025 at 3:38 PM, asilverblazer said:

I think the best solution is...

The EV Silverado is not the same truck as the ICE Silverado. It should be. Just like how Ford converted the lightning. They should have taken the ultium battery packs and squeezed them in around the frame rails. Throw the front and rear drive motors in and call it a day. That storage compartment at the front? Totally encapsulated prepackaged range extender. It doesn't matter what it is use the 1.2l 3 cylinder. All it does is sit up there and hum away at fixed RPM recharging the batteries, when the grid, regenerative braking, etc. isn't recharging them. The ultium battery pack that is so big and heavy - halve it. 100 miles of chargeless range is fine. Especially, if I know that my little generators is going to pick up the slack. The generator is going to re-use all the refueling infrastructure in place too. Waiting at a charger for hours, nope, re fuel the generator in 15 minutes and go on. The generator will never directly power the wheels, its power output can be minuscule. You never need all 400+ hp of any engine all the time now. Coasting, idling, cruising, parked - it recharges batteries; as long as it can keep the batteries from fully depleting.

Meanwhile, Ram has released the new ram hybrid, using the 3.6 pentastar as the range extender. The overall package is exactly what I've been waiting for.