A Smaller HEMI?

Discussion in 'Dodge Challenger General Discussions' started by SRT-Tom, Nov 23, 2024.

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  1. Nov 23, 2024 at 10:17 AM #1
    SRT-Tom

    SRT-Tom Well-Known Member Staff Member Super Moderator Article Writer

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    Mopar Insiders had an interesting article about the feasibility of Stellantis developing a smaller HEMI engine.

    The article states:

    "The push for electrification has transformed the automotive industry, yet internal combustion engines (ICEs) remain a cornerstone of vehicle sales. Companies like Ford and General Motors (GM) continue to refine their V8 engines, demonstrating that innovation in ICEs still has a role in the modern market.

    Ford’s COYOTE V8 is a shining example of this balance between tradition and efficiency. Could Stellantis follow suit by creating a smaller displacement HEMI® V8 to complement its lineup?

    Ford’s 5.0-liter (302 cubic-inch) COYOTE V8 is a favorite among performance enthusiasts. Found in the Ford Mustang and F-150, the engine has carved a reputation for its versatility and power. Featuring dual overhead cams (DOHC), variable valve timing, and high compression ratios, the COYOTE engine delivers impressive performance, excellent fuel efficiency, and compliance with emissions standards.

    Moreover, the COYOTE has become a favorite in the aftermarket, with companies like Roush offering supercharger kits that push output to over 800 horsepower. This adaptability has solidified its appeal, blending modern engineering with raw power.

    If Stellantis developed a smaller displacement HEMI V8—perhaps a 5.2-liter (318 cubic-inch) variant—it could directly compete with the COYOTE engine in both power and efficiency. By adopting technologies like DOHC architecture, direct injection, and lightweight construction, Stellantis could create an engine that combines the iconic HEMI performance with a cleaner, more efficient profile.

    However, the administration has signaled plans to roll back these regulations. This could create a window of opportunity for Stellantis to invest in ICE development, including a new HEMI® V8. Trump’s previous administration similarly eased Obama-era efficiency standards, and industry insiders expect a similar approach this time.

    The timeline, however, poses challenges. Developing a next-generation engine could take years, potentially aligning with the end of Trump’s presidency. Stellantis must weigh the long-term benefits of ICE investment against the uncertainty of shifting political landscapes."
     
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  2. Nov 23, 2024 at 3:33 PM #2
    Sexy Blue

    Sexy Blue AKA Bob

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    Let Freedom Ring!
     
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  3. Nov 23, 2024 at 9:48 PM #3
    Moparisto

    Moparisto Full Access Member

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    A, screw it. Run a 7.2 liter DOHC V12.

    Time for a performance renaissance, and we know the other two "North American" manufacturers are waiting to follow Dodge's lead, as usual.
     
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  4. Nov 23, 2024 at 10:11 PM #4
    Moparisto

    Moparisto Full Access Member

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    I am hoping they already have a 4.8L "extension-of-the 3.6L" V8 already in development.
     
  5. Nov 25, 2024 at 9:54 AM #5
    2009 Classic B5

    2009 Classic B5 Full Access Member

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    We will have to see what the next administration does with the EPA and the upcoming 2027 emissions regulations that will for all intents and purposes kill the ICE. EPA will require a 90% reduction in all regulated emissions from all vehicles effectively killing gasoline and diesel engines. This is totally misguided as current emissions standards are so low that cars actually clean the air in many large cities, especially SoCal. So the Clean Air Act was subverted by The Deep State and NGO's to achieve a political goal to "Just Stop Oil" by stopping the demand for oil.

    Time to drain the swamp completely and permanently.
     
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  6. Nov 25, 2024 at 4:19 PM #6
    Sexy Blue

    Sexy Blue AKA Bob

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    EPA workers are already looking for different positions, in different agencies, if that tells you anything. Elon, and Vivek will be putting them on the chopping block. 99 agencies, not 500 is the plan.
     
  7. Nov 25, 2024 at 7:45 PM #7
    baccaruda

    baccaruda Full Access Member

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    upload_2024-11-25_19-43-47.jpeg And I was just about ready to purchase a newer challenger.......

    ]
     
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  8. Nov 26, 2024 at 12:26 PM #8
    Cloverdale

    Cloverdale Full Access Member

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    Are there inaccuracies in the conclusion of this study?

    A negative emission internal combustion engine vehicle? - ScienceDirect
     
  9. Nov 26, 2024 at 12:43 PM #9
    2009 Classic B5

    2009 Classic B5 Full Access Member

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    From the Science article:
    Highlights
    • Modern internal combustion engines can have very low pollutant emissions.
    • Some places in the world can have very high levels of atmospheric pollutants.
    • It is possible that modern vehicles can be negative emission.
    • However, the circumstances under which this can happen on average are limited.
    • A spreadsheet tool is available for readers to use their own values.
    Conclusions are correct but some points need to be made. Yes, there are places where emissions from ICE vehicles are higher than ambient air quality, but these are rural areas where there are less vehicles. In congested cities like SoCal with ambient air quality is low, there are millions of vehicles and hundres of millions of vehicle miles traveled so there is a significant impact of cars that have low emissions actually cleaning the air. UC Riverside documented this many years ago. They have to ultra-filter air when running emissions tests just to get the particulate matter (PM) low enough to meet EPA PM emissions standards for vehicles.
    A friend at the California Energy Commission evaluated the impact of diesel PM traps and found the same thing. Modern diesel engines clean the air too. But no one talks about good news like this, only the bad news.
     
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  10. Nov 26, 2024 at 2:39 PM #10
    Cloverdale

    Cloverdale Full Access Member

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    Appreciate your feedback. My stubborn brain won't let me escape my nagging intuition that insists our air quality won't stop diminishing until we can safely breathe in combustion engine exhaust directly.
     
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