Hemi being discontinuted

67440dodge said:

HEMI is just a trademark name that some schmuck at Chrysler trademarked back in the 50's, and they kept renewing every time it was going to expire, even if they never use it. (Sorta like Richard Childress kept buying the #3 from Nascar and never used it after Dale E's death until recently) From the Flathead Ford V8 to a Toyota, (I always called mine the HemiYota) hemispherical combustion chambers have been in use since almost the beginning of time.

It's all about marketing.. What sells more cars.. a "Challenger Scat Pack with 392 HEMI" or "Challenger Scat Pack with 6.4L V8"?


What's funny is "Hemi" is dead next year, yet Mopar just re-introduced the Direct Connection Performance Parts" program for muscle cars/trucks...

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A flat head isn’t a hemispherical shape.

KC5TGQ said:

I read on TTAC that the Hemi will be dropped after 2023. New emission standards are leading Stellantis to drop them. My understanding is that a twin turbo V-6 world engine is the replacement.

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same with the Tundra starting 2022... no more V8, TT v6

the current administration is kicking around a new mpg requirement of 55 mpg by 2026. seems kind of far fetched to me. whoever is in power next could dial that back to a reasonable amount. there wont be any all electric trucks for me or one powered by some dinky turbo engine. I will just buy the last year of gas powered v8 and keep it alive till I dont drive anymore. IMHO

KC5TGQ said:

I read on TTAC that the Hemi will be dropped after 2023. New emission standards are leading Stellantis to drop them. My understanding is that a twin turbo V-6 world engine is the replacement.

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This could be true. I did however read the same thing but it was only in the Dodge brand of vehicles such as the Challenger, Charger, etc.. Not the Ram brand, at least not yet. But I could see it going that direction.

I have been rebuilding Diesels since the late seventies, if they don’t sell them in the near future then the rebuild market will keep going. For me it would only be for myself since I don’t work on other’s vehicles anymore. More EV stuff should lower fuel prices in theory, unless they keep using it to make electricity.

Look. The 5th gen was supposed to debut the straight 6 twin turbo engine. So this isn't new. They did not debut it.

Then the Wagoneer was debut it. And it didn't

Now it is to debut in the challenger.

The 1500 will see the straight 6.

The 2500/3500 will not.

Read back through some mopar articles. This drama goes back all the way to 2014. Possibly before

This is nothing new.

I am excited for the electric charger and RAM.

The charger is going to hand tesla plaid its ass.

And the RAM is going to make rivian wish they never tried.

Good times

The new engine is going to be a turbo straight 6 and it's been in most car & truck magazines.

The 1st transverse valve heads did in fact use hemispherical head machining to accomplish - but the volumetric efficiency was low, so they went to domed pistons. That interfered with the cross flow, so Gen III used an oval pentagon head to increase compression ratio while retaining good crossflow (the whole reason for this engine is improve breathing). They barely passed EPA emissions after adding the 2nd spark plug. It breathed a bit too well! Like an old 2 stroke Detroit Diesel, that is.

Aircommuter said:

I have been rebuilding Diesels since the late seventies, if they don’t sell them in the near future then the rebuild market will keep going. For me it would only be for myself since I don’t work on other’s vehicles anymore. More EV stuff should lower fuel prices in theory, unless they keep using it to make electricity.

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EPA is going after diesel rebuilders, fyi. I was in that loop 10 years ago. EPA is well aware of attempt to get around latest emission regs forever.

2019RamInSC said:

So "hemi" was not short for "hemi-spephirical heads" ? Just a marketing ploy?

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Yup... what sells cars? An ad "Hey, that thing got a HEMI?" or an ad "Hey, that thing got a Hemi-spherical head?"

Dozer69 said:

same with the Tundra starting 2022... no more V8, TT v6

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2022 Toyota Tundra Pro
i-Force Max 3.5L twin turbo hybrid
437HP 583 ft.lbs.

I actually looked at one of these as it was reported to be coming out for MY22. Payload isn't that high from what I could see. It does have an independent rear suspension. It is pretty sharp. I still like my Ram though.

The other Tundra options are the V6 TT but are only 389HP and 479 ft. lbs. compared to i-Force Max option.

runamuck said:

the current administration is kicking around a new mpg requirement of 55 mpg by 2026. seems kind of far fetched to me. whoever is in power next could dial that back to a reasonable amount. there wont be any all electric trucks for me or one powered by some dinky turbo engine. I will just buy the last year of gas powered v8 and keep it alive till I dont drive anymore. IMHO

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It's probably still too far/too fast, but it's not as extreme as it seems because it's not actually 55 mpg. CAFE, Corporate Average Fuel Economy, is a fleet wide average and is calculated differently than the mpg you see on the stickers on new cars. 55mpg is about 40mpg equivalent on the Monroney sticker. That's also before 'credits', which you can get by doing things like using high efficient lighting that reduces overall power demand or simply buying credits.

It's a dumb system, but that's sometimes what you get when something is built piece by piece over decades instead of scrapping it and starting over. It's the legal equivalent of Johnny Cash's Cadillac.

I'd like to see them add 2 cylinders to the little V6 I have in my 2019 1500. 305 hp in the 6 would become 400+ in an 8 cylinder version. This truck tows 7,000# without a whimper.

PoMansRam said:

Twin turbo means no thanks for me if I can avoid it. As awesome as something like an Ecoboost F150 is power wise, Lawd help you if you need major repairs down the road. You think a Hemi cam/lifter job is expensive? Plus they don't get better fuel economy than a hemi.

My 2019 classic w/ hemi, gives me better fuel economy than the guys I work with, with ecoboosts.

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Sounds like we're running the same machine and I love my '19 1500 Classic w/Hemi

Turbos are worthless in Phoenix in the summer. Glad I just bought a new hemi will have to keep it as long as possible

haven't read all posts but want to ask about the charging of these vehicles. Has the engineers and intellihencia thought this thru? I haven't seen anywhere that this is being posed. I have a big problem wondering what will really happen once millions of electric vehicles are on the road. How will there ever be enough power for all these vehicles once that happens? The demand for electricity will exponentially increase(we will not only have to continue our necessary increased supply of power for the masses plus now the new added electricity needed to power these millions of vehicles). Where is this ominous increase of demand going to come from? Maybe we will not only curtail the decrease of energy from fossil fuel, we will have to vastly increase fossil fuel energy to try to keep up with the new geometrically affected need for energy an electric flotilla of vehicles will demand? Wouldn't that defeat the simple reason of the whole concept of what the experts are designing these electric vehicles for?.......decreasing the dependence on fossil fuel? Not to mention the myriad new demands for electricity and those other cause and effect problems that might arise that will make this whole concept far worse than our current '''''problem''''' as viewed by the ''''''''''experts''''''''''!!!!!

392DevilDog said:

Look. The 5th gen was supposed to debut the straight 6 twin turbo engine. So this isn't new. They did not debut it.

Then the Wagoneer was debut it. And it didn't

Now it is to debut in the challenger.

The 1500 will see the straight 6.

The 2500/3500 will not.

Read back through some mopar articles. This drama goes back all the way to 2014. Possibly before

This is nothing new.

I am excited for the electric charger and RAM.

The charger is going to hand tesla plaid its ass.

And the RAM is going to make rivian wish they never tried.

Good times

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The TT is going in many different platforms, good thing is its a straight 6, bad thing is the TT and small displacement

PoMansRam said:

Twin turbo means no thanks for me if I can avoid it. As awesome as something like an Ecoboost F150 is power wise, Lawd help you if you need major repairs down the road. You think a Hemi cam/lifter job is expensive? Plus they don't get better fuel economy than a hemi.

My 2019 classic w/ hemi, gives me better fuel economy than the guys I work with, with ecoboosts.

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Yer so right. Twin turbos often need a catch-can to keep turbos from coking up. Worse, twin turbos means you must have a diagnostic to determine which turbo is underboosting. And if turbos fail, that leaves you with a low compression V-6 because turboed engines must be able to avoid sudden boost damaging the engine. So let Ford/Ford Owners pay the cost to figure out how to keep the sci-fi engine design working. Hemi may not make the same power and all that, but it's so much easier to fix.

Before too awfully long.......we will charge our cars "as we drive them"......and the "fuel taxes" you pay now at the pump......will probably be paid from an odometer reading or transponder like you use on toll roads now.