Ferrari-for-Working-Stiffs

[Shepherd777]

Great article at SAE from none other than the man himself, Don Sherman.

https://www.sae.org/news/2019/07/2020-chevrolet-corvette-intro



I have been working on, tuning, building, tweaking, and otherwise playing with Chevy small block engines for over 50 years now. But with those side-mounted hold-down bolts on the valve covers with the black phosphate fasteners, the stamped-in C8 logos, and those stainless steel tubular headers, our new C8s will have the most beautiful small block Chevy engine that I have ever seen.

[ZORA 69]

Thank You for the article

[Klinn]

Good article, and thanks for posting the link. One tidbit I found interesting:

“No Corvette has ever felt so comfortable, nimble, and stable,” Juechter exclaimed. “We’re confident our customers will admire the strides we’ve achieved in ride quality. And now that the car’s center of gravity is very close to the occupants’ hip points, the feeling during acceleration and braking is analogous to riding at the center—instead of the ends—of a teeter-totter. There’s practically no sense of pitch motion in the cockpit.”

Reducing the "teeter-totter" effect can have some negative side effects.

1. When pushing the car hard, drivers depend on the feeling of pitch & dive to give them immediate feedback on how the car is performing and how close to the limits they are. If you had zero sensations of this type it would be like playing a video game, you would have to depend on your eyes for feedback instead of feeling it with your body. So let's hope that while teeter-tottering may be reduced, there's enough left to provide useful feedback.
2. For similar reasons I predict some people will complain that the car doesn't "feel fast". That is, they don't get the same feeling of the car squatting under hard acceleration. Despite the numbers proving otherwise, they'll insist that it just doesn't feel as good.

[bobbytinvab]

A good looking engine for sure ... and sooo easy to twin turbo if desired ... the wait is going to be looong

[68roadster]

[*]For similar reasons I predict some people will complain that the car doesn't "feel fast". That is, they don't get the same feeling of the car squatting under hard acceleration. Despite the numbers proving otherwise, they'll insist that it just doesn't feel as good.[/LIST]

Interesting. Well you know people love to have something to complain about, so count on it not feeling good to them.

[Phil1098]

Here is a quote from the article: "A new electrical architecture provides quicker subsystem communication, fewer wires, enhanced display screen resolution, greater security measures and the ability to update the Corvette’s software over the air via WiFi."

A new electrical architecture sure sounds like there is something to the 12V/48V system talked about elsewhere on the forum.

[John]

Thank you Shepherd777. I talked with Don at the Reveal. He was genuine excited about what he was seeing (as we 98% of us, e.g., on the moon).

[C7Redneck]

Good article, and thanks for posting the link. One tidbit I found interesting:



Reducing the "teeter-totter" effect can have some negative side effects.

1. When pushing the car hard, drivers depend on the feeling of pitch & dive to give them immediate feedback on how the car is performing and how close to the limits they are. If you had zero sensations of this type it would be like playing a video game, you would have to depend on your eyes for feedback instead of feeling it with your body. So let's hope that while teeter-tottering may be reduced, there's enough left to provide useful feedback.
2. For similar reasons I predict some people will complain that the car doesn't "feel fast". That is, they don't get the same feeling of the car squatting under hard acceleration. Despite the numbers proving otherwise, they'll insist that it just doesn't feel as good.

Good points. I felt like the C7 steering gave me much less feedback than my C5. Likewise I expect the C8 to be more so. That said I got used to it. Although I could not feel the tires slipping like I did in the C5 there are sooooo many other things that the C7 does better.

Also I have had the chance to drive some mid rear engine super cars. Also I did the Cayman S on the Porsche Atlanta experience center. There are many advantages to this new positioning of the engine. However we should not expect it to handle like our front engine cars if you track. Street? I doubt you will have any issues. Track, you need to be prepared that when do break loose the rear it will tend to come around on you more.

[ltomn]

Good article, and thanks for posting the link. One tidbit I found interesting:



Reducing the "teeter-totter" effect can have some negative side effects.

1. When pushing the car hard, drivers depend on the feeling of pitch & dive to give them immediate feedback on how the car is performing and how close to the limits they are. If you had zero sensations of this type it would be like playing a video game, you would have to depend on your eyes for feedback instead of feeling it with your body. So let's hope that while teeter-tottering may be reduced, there's enough left to provide useful feedback.
2. For similar reasons I predict some people will complain that the car doesn't "feel fast". That is, they don't get the same feeling of the car squatting under hard acceleration. Despite the numbers proving otherwise, they'll insist that it just doesn't feel as good.

In previous photos I have seen a gauge on the dash for "G Forces!" The reduced sensation from this so called "teeter totter" effect are certainly augmented by the effects of "back and forth" from G Forces! This seems analogous to the necessary sensations of ride effect (to coin a phrase). I think a driver will have more then adequate, and telling, excitement from sensation.

[meyerweb]

Interesting. Well you know people love to have something to complain about, so count on it not feeling good to them.

Just replace the stock springs with some from a Cadillac and you can make it squat as much as you want.

[meyerweb]

Thank you Shepherd777. I talked with Don at the Reveal. He was genuine excited about what he was seeing (as we 98% of us, e.g., on the moon).

Thy're talking about the new GM networking architecture, which could conceivably require a 48 volt electrical system, but no one has said so. But GM announced this architecture a while ago, is using it on some Cadillacs as well as the C8, and there's not been one word about a 48 volt system. I find it hard to believe they wouldn't have mentioned this by now if it were true. But I guess we'll find out eventually.

Here are some articles about it, none of which mention 48 volts.

https://media.gm.com/media/us/en/gm/...0-digital.html

https://www.reuters.com/article/us-a...0P42UY20150624

[Milliwatt Rob]

Good article, and thanks for posting the link. One tidbit I found interesting:



Reducing the "teeter-totter" effect can have some negative side effects.

1. When pushing the car hard, drivers depend on the feeling of pitch & dive to give them immediate feedback on how the car is performing and how close to the limits they are. If you had zero sensations of this type it would be like playing a video game, you would have to depend on your eyes for feedback instead of feeling it with your body. So let's hope that while teeter-tottering may be reduced, there's enough left to provide useful feedback.
2. For similar reasons I predict some people will complain that the car doesn't "feel fast". That is, they don't get the same feeling of the car squatting under hard acceleration. Despite the numbers proving otherwise, they'll insist that it just doesn't feel as good.

When I was a 16 year old in 1963, I had a cousin who shoe horned a 327 V8 into a 54 Chevy with over 100K miles on it. No other mods to springs, shocks wheels or tires, no sway bars, no nothing that car had plenty of pitch and dive. Going 60 mph felt like going 100 mph.