Random Question: What is "MY18"?

[Ewheels]

I keep seeing "MY18" being used on this forum. From context, I'm assuming this is referring to the 2018 model year. (Is that what it means? Model Year 18??) Is this a separate chassis code other than S550 or just some abbreviation people came up with?

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[Spork3245]

MY18 = Model Year 2018+
There were significant changes via a refresh for the 2018 model year compared to the 2015-2017 S550s.

 

[Ewheels]

Oh so it is just an abbreviation, ok. I kept seeing people use it like it was an official term. I would Google it and nothing would come up.
Thank you for clarifying that for me

 

[nastang87xx]

It's pseudo talk but yes, MY = model year. L33t sp3@k!!!

 

[Zinc03svt]

Ed u ma cate yourself a little...

https://www.hotrod.com/articles/depth-look-evolution-coyote-engine/

 

[Idaho2018GTPremium]

Ed u ma cate yourself a little...

https://www.hotrod.com/articles/depth-look-evolution-coyote-engine/

Very good article. I read it twice about a month ago. Many, many, incremental improvements from Gen 2 to Gen 3 (and a number from Gen 1 to Gen 2) makes for a wonderful naturally aspirated V8. If they can make the same incremental improvements to a Gen 4 version (larger cam, larger valves, slightly higher compression, intake manifold, slightly improved exhaust headers, etc.), they could push the Coyote to 500 hp once the Voodoo is done with production. I don't think Ford will push the 5.0 that far along while the Voodoo is still in production.

 

[Zinc03svt]

Very good article. I read it twice about a month ago. Many, many, incremental improvements from Gen 2 to Gen 3 (and a number from Gen 1 to Gen 2) makes for a wonderful naturally aspirated V8. If they can make the same incremental improvements to a Gen 4 version (larger cam, larger valves, slightly higher compression, intake manifold, slightly improved exhaust headers, etc.), they could push the Coyote to 500 hp once the Voodoo is done with production. I don't think Ford will push the 5.0 that far along while the Voodoo is still in production.

I would say the days of high compression 302’s may again unfortunately be coming to a second end (circa 1971). A new 4.8 v8 is in the works and an electric future seems to be the direction. I missed the first muscle car era and have enjoyed it’s resurgence for sure.

 

[Idaho2018GTPremium]

I would say the days of high compression 302’s may again unfortunately be coming to a second end (circa 1971). A new 4.8 v8 is in the works and an electric future seems to be the direction. I missed the first muscle car era and have enjoyed it’s resurgence for sure.

Maybe, but we can hope. Mazda's "skyactiv" 4 cylinders have a 13:1 compression ratio on gasoline, I think the Ford engine engineers could pull that off, too.

 

[Tony Alonso]

I would say the days of high compression 302’s may again unfortunately be coming to a second end (circa 1971). A new 4.8 v8 is in the works and an electric future seems to be the direction. I missed the first muscle car era and have enjoyed it’s resurgence for sure.

https://thenewswheel.com/no-4-8-liter-v8-ford-f-150/

 

[nastang87xx]

I feel like the 5L is going to be around for a while. Especially when it comes to efficiency and power. 302'ish cubic inches in itself has some excellent advantages in terms of stoich leveraging. There's a reason why all the greats with 8 pumpers are around 5, 6, and 7 liters and not really in between and of more modern era too because we've understood how to exploit stoich so much more effectively. Coyote, LS7, LM7, M156, even Lexus's UR 5 liter is AMAZING. Forget LS1 at 5.7L, LS3 at 6.2L is where it's at. Smaller V8's will lose their stoich advantage to efficiency in order to generate power (BMW S65 but still an awesome engine) and bigger than this range will start to loose stoich flexibility (GM Vortech 8100 for instance) and then there's sweet spots in between that range. And it's 5'ish, 6'ish, and 7'ish liters of displacement.

 

[Norm Peterson]

I tend to think the sweet spot, at least for specific power normally aspirated, is closer to 500 cc/cylinder (like the mentioned S65). Possibly less, as the 3.0 liter Formula 1 engines ran 8 or more cylinders. Ultimately, it comes down to valve curtain area relative to displacement, which pushes bore & stroke in the oversquarish direction (that's bore > stroke) because bigger valves need a bigger bore, which drives stroke down to maintain displacement.

I'd actually like to see a 4.8L NA engine, just with something more like 3.75" bore x 3.31" stroke.


Norm

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