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ME’s “Having Only V-8’s” News & C7 Production Length Re-Consideration

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  • #61
    Originally posted by Busa Dave View Post

    That is in your opinion only. Important to note.
    Fair point - as they say, "opinions are like noses, everyone has a one". We will see what GM says in a matter of weeks. GM's is the only one that really counts.


    • #62
      Yes, let us gets actual GM mid engine facts!!! We would all love those, and really soon please GM.
      Excited owners of a 2015 Z06. Lifetime, annual contributors, and 20 year members of NCM. Our 2020 ME C8 Corvette is next.


      • #63
        Originally posted by John View Post
        While for historical reasons, i am not going to heavily edit this thread, I HAVE NOW REVISED MY PERSONAL OPINION AND FEEL THAT ONLY ME’S WILL BE MADE STARTING THE 2020 MODEL YEAR.

        ​​​​​Regarding the ME’s motors, two new mid engine 32V, DOHC V-8 motors are predicts, with the modified LT1 continuing on for ME production probably for several years of the first ME Corvette generation, possible until its end.

        Thanks and credit to “rsinor” for internet posting on another forum, specifically for his providing information from the just-last-month updated, “North American Engine Forecast: 2016-2024” (published Oct, 2017).

        Thank you very much and credit to IHS Markit, the publisher/source of the North American Engine Forecast.

        Please note that the dates below come from the Forecast and now appear to be one year earlier than we currently expect. Why? Probably because the ZR1’s initially was going to be a 2018, 65th Anniversary model, but didn’t appear until the 2019 model year. This would push back all the following dates in the IHS Markit Forecast – and consequent below information.

        What is separately interesting, is rsinor‘s finding that the future Cadillac sports car will probably be no longer i.e., he found in the Forecast that “the 4.2L DOHC listed in Cadillac ‘Sports Car’ and the CT6 have a revised zero production expectation through 2024,” and he consequently concluded, “that tells me the Cadillac option got cancelled.”[/B] Additionally, nowhere else, even for any other GM V-8 motor, is the Cadillac sports car now listed.

        Nicely-startling is that the maximum output of the gas-powered, direct injection platform of GM’s gas-powered, V-8 motors could be 850 HP, 720 TQ (again, its maximum design parameter) and although probable, nothing shows that that motor would specifically power a future Corvette – either at that power lever or reduced somewhat. If 850/720 or anywhere near that, ZORA would be joyous!

        I. Two Corvette Platforms for 2020 and 2021: A front-engine platform, called a Y1, and a mid-engine platform, called a Y2.

        I have online looked at the “2016-2024 North American Engine Forecast” for several days, and contrary to some of my previous posts, it shows there would be two different Corvette platforms for both 2020 and 2021. And, there would be a total of three motors spread over the two Corvette platforms, specifically:

        1.A: A 6.2L, 16V, OHV, for the Y1, front-engined, Corvette platform;

        1.B: A 6.2L, 16V, OHV, for the Y2, mid-engined, Corvette platform;

        2) A 4.2 L, 32 V, DOHC, for the Corvette Y2 platform; and,

        3) A 5.5L, 32 V, DOHC, also for the Corvette Y2 platform.

        Collectively, this would mean that the 2020 and 2021 model year Corvettes would be available with as many as three different motors?

        Personal opinion as of the November, 2017 original writing of this thread: With all the massive testing, and emissions development/testing costs, and with the 2020 model year having both a front-engine and a brand new mid-engine Corvette, doesn’t that seem to be a mighty complex, very ambitious, and extremely expensive process/outcome? Especially so, when the debuting ME is projected to have its own, two, brand-new, 32V, DOHC motors, and also would have our carry-over 16V, OHV, 6.2L, all during its 1st year of production. This is a radically different plan that we saw for the C5, the C6, and the C7, when the initial year of each generation saw only one model available, with other models progressively revealed later during each generation. I am questioning that the 2021 & 2021 ME’s would offer three motor choices – and as the 6.2L is not the engine that is projected to carry the Y2 platform all the way to 2024, i.e., if any motor is not in the 2020+ ME’s, IMO, it would not be the 6.2L, still leaving it with both 4.2L and a 5.5L. 32V, DOHC options.

        July, 2018 Update: Almost every source (although all are second hand, and not from GM – which still does not admit the 2020 ME is coming at all, let alone for the 2020 model year), is that there will only be one motor for the 2020 ME – with that motor being derived from the C7’s LT1. How many changes/upgrades would that motor experience for the 2020 ME? That is totally unknown outside of GM.

        II. Corvettes’ Future Motor Needs:

        A) The 6.2L, Y1 front-engine platform, is projected to use 14,000 motors for 2019, declining significantly for 2020; and even more for 2021, with no more front-engined 6.2L’s after 2021. (Many of these motors would be built at Bowling Green; the rest would be built at Tonawanda.) Guessing here, that perhaps that some go into 2020 & 2021 Z06’s and much lower amount of motors projected for 2021, only into ZR1’s (the last year of the ZR1)?

        B) The 6.2L, Y2 mid-engine platform, is projected to use 14,000 motors for 2019 through 2021, then slightly less for 2022-2024.

        C) The 4.2L, Y2 platform, is projected to use 7,000+ motors every year 2019 through calendar year 2024. (All 4.2L’s would be produced at Tonawanda.)

        D) The 5.5L, Y2 platform, is projected to use 5,000 motors annually 2019 through 2023. (All 5.5L’s would be produced at Tonawanda.)

        It is very interesting to see that while BGA is currently making many over 10,000 motor, projected to make half that many through 2021, by the very end of this time forecast time period (2024), it would only then be producing only 1,000 – becoming at that time only a “build your Corvette motor option”?

        Thus, based on this new info, is it now probable that the C7 continues onward for two more years (model years 2020 and 2021), and during those two years, being produced simultaneously with the ME and its three motor options, e.g., the 4.2L, the 5.5 L, and the 6.2L?

        April, 2018 Update: While not related to the Corvette, Cadillac officially announced that Bowling Green’s Performance Build Center will be producing the CT6’s 4.2L, “hot V” DOHC, 32V motor at an approximate rate of 3,000/year.

        Of course, the Forecast is just that, and while it is scientifically and thoroughly researched and prepared, and it is very highly respected, there well could be continued future changes in projections especially as market conditions continue to evolve, i.e., why it is periodically and systematically revised. However, we have not seen a post Oct, 2017 update to the IHS Markit Forecast.

        Lots to ponder.

        Any alternative views considering/evaluating this projected information?

        The CTS was included in the models they are going to discontinue


        • #64
          Yes, times they are a changing. That IHS Markit Engine Forecast prediction was originally done over a year ago. We still have a lot more to learn — and we seem to be learning about its powertrain the least, other than we know the 2020 ME will be powered by a 16V, V8 that is derived from the LT1 (but super high probability it will have a different option code).

          Excited owners of a 2015 Z06. Lifetime, annual contributors, and 20 year members of NCM. Our 2020 ME C8 Corvette is next.