C8 Engine Options
#21
Whatever engines end up in the C8, you can be sure that GM's choice in that regard will have been heavily influenced by CAFE. Corvette in not totally immune to CAFE; that has been proven, e.g., do you think focus groups told Tadge, et al, that they wanted AFM? And who asked for skip shift? Finally, and I will probably get some disagreement here, the C7 DI was implemented mainly because it enables relatively graceful AFM, and not because it arguably adds a few hp.
As demonstrated by dozens of other nameplates, one strategy that improves the EPA FE test results that affect CAFE calculations is small displacement with turbo boost. My guess is that Corvette will go in this direction at some point. V6 or V8 ?: I don't know (V-6 makes more technical sense, but V8 is strongly preferred by Corvette buyers). One or two turbos?: Again I can't guess, but I'll go out on a limb and guess that it or they will be electric-assisted.
#22
Turn 12!
#24
With all respect, I gotta agree GM has been EXTREMELY tight-lipped about this car.
They need to throw us a bone....
They need to throw us a bone....
#25
Le Mans Master
Even though this might be worded a little harshly, Mjolitor is right.
Whatever engines end up in the C8, you can be sure that GM's choice in that regard will have been heavily influenced by CAFE. Corvette in not totally immune to CAFE; that has been proven, e.g., do you think focus groups told Tadge, et al, that they wanted AFM? And who asked for skip shift? Finally, and I will probably get some disagreement here, the C7 DI was implemented mainly because it enables relatively graceful AFM, and not because it arguably adds a few hp.
As demonstrated by dozens of other nameplates, one strategy that improves the EPA FE test results that affect CAFE calculations is small displacement with turbo boost. My guess is that Corvette will go in this direction at some point. V6 or V8 ?: I don't know (V-6 makes more technical sense, but V8 is strongly preferred by Corvette buyers). One or two turbos?: Again I can't guess, but I'll go out on a limb and guess that it or they will be electric-assisted.
Whatever engines end up in the C8, you can be sure that GM's choice in that regard will have been heavily influenced by CAFE. Corvette in not totally immune to CAFE; that has been proven, e.g., do you think focus groups told Tadge, et al, that they wanted AFM? And who asked for skip shift? Finally, and I will probably get some disagreement here, the C7 DI was implemented mainly because it enables relatively graceful AFM, and not because it arguably adds a few hp.
As demonstrated by dozens of other nameplates, one strategy that improves the EPA FE test results that affect CAFE calculations is small displacement with turbo boost. My guess is that Corvette will go in this direction at some point. V6 or V8 ?: I don't know (V-6 makes more technical sense, but V8 is strongly preferred by Corvette buyers). One or two turbos?: Again I can't guess, but I'll go out on a limb and guess that it or they will be electric-assisted.
#26
Race Director
#27
Burning Brakes
Thread Starter
#29
If we're talking about a CADILLAC mid-engine, then yes.
#30
Melting Slicks
For the past 12 months, I've driven the Cadillac ATS-V coupe on a daily basis with the 6-speed manual. I have to say the engine makes plenty of power and torque. It is a fun car to drive on twisty roads for sure. It'll make enough power for any C8.
However, the engine sound is definitely not a V-8. For the mid-engine Vette, the LF4 engine probably is a better fit than the LT1. Although the ATS-V is front engine, it won't be so easy in a front engine Corvette to fit under the low hood. The 6.2L without turbos fits nicely up front but with all the stuff that a twin-turbo DOHC has, it would be a better fit in the mid-engine where the hood line isn't an issue. Now, whether GM wants to do it that way, is another question.
However, the engine sound is definitely not a V-8. For the mid-engine Vette, the LF4 engine probably is a better fit than the LT1. Although the ATS-V is front engine, it won't be so easy in a front engine Corvette to fit under the low hood. The 6.2L without turbos fits nicely up front but with all the stuff that a twin-turbo DOHC has, it would be a better fit in the mid-engine where the hood line isn't an issue. Now, whether GM wants to do it that way, is another question.
#32
Team Owner
For the past 12 months, I've driven the Cadillac ATS-V coupe on a daily basis with the 6-speed manual. I have to say the engine makes plenty of power and torque. It is a fun car to drive on twisty roads for sure. It'll make enough power for any C8.
However, the engine sound is definitely not a V-8. For the mid-engine Vette, the LF4 engine probably is a better fit than the LT1. Although the ATS-V is front engine, it won't be so easy in a front engine Corvette to fit under the low hood. The 6.2L without turbos fits nicely up front but with all the stuff that a twin-turbo DOHC has, it would be a better fit in the mid-engine where the hood line isn't an issue. Now, whether GM wants to do it that way, is another question.
However, the engine sound is definitely not a V-8. For the mid-engine Vette, the LF4 engine probably is a better fit than the LT1. Although the ATS-V is front engine, it won't be so easy in a front engine Corvette to fit under the low hood. The 6.2L without turbos fits nicely up front but with all the stuff that a twin-turbo DOHC has, it would be a better fit in the mid-engine where the hood line isn't an issue. Now, whether GM wants to do it that way, is another question.
Even the obsolete Cadillac XLR had a DOHC V8 with a supercharger on top, and it was also a front engine sports car.
Last edited by JoesC5; 08-31-2017 at 12:49 PM.
#33
Le Mans Master
Ferrari has no production V6s (488 and Cali are both biTurbo V8s)
#34
Corvette Enthusiast
Member Since: Oct 2005
Location: Troy & Dearborn, Michigan
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The Mercedes engineers managed to fit a 4L DOHC V8 with twin turbo's in their AMG GT front engine sports cars, without having to raise the hood like GM had to do when they put a supercharger on top of the OHV V8 in the Z06.
Even the obsolete Cadillac XLR had a DOHC V8 with a supercharger on top, and it was also a front engine sports car.
Even the obsolete Cadillac XLR had a DOHC V8 with a supercharger on top, and it was also a front engine sports car.
#35
Team Owner
#36
Corvette Enthusiast
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If you want the numbers, go measure them. You argued that Mercedes could do it, you need to provide the proof.
#37
Team Owner
Okay, I'll put you down as "I don't know what the **** I'm talking about" since you made the claim that the hood is higher on the AMG GT vs the C7 Z06, and now you can't back it up.
Last edited by JoesC5; 08-31-2017 at 05:45 PM.
#38
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Location: Troy & Dearborn, Michigan
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I counter with, it has a higher hood. Why do I need to prove what I say? You're the one who is claiming it can be done? (my claim is it cannot be done without raising the hood, which is just the opposite of what you claimed)
This is what I never get about the internet, people bitch about things "Company X can do it" and they never go the distance to actually PROVE THEY DID IT. (I don't have to prove my point, it's either proven or disproven by you proving your point).
I want proof Joe, or I want you to not post it. It's really that simple. (This is the luxury of being the one who challenges an original statement, I CAN be lazy, you CAN'T).
Last edited by LT1 Z51; 08-31-2017 at 05:48 PM.
#39
Team Owner
You can do what you want. But you provided an answer "Well Mercedes can do it" and provide no proof other than posting a picture of an AMG GT.
I counter with, it has a higher hood. Why do I need to prove what I say? You're the one who is claiming it can be done? (my claim is it cannot be done without raising the hood, which is just the opposite of what you claimed)
This is what I never get about the internet, people bitch about things "Company X can do it" and they never go the distance to actually PROVE THEY DID IT. (I don't have to prove my point, it's either proven or disproven by you proving your point).
I want proof Joe, or I want you to not post it. It's really that simple. (This is the luxury of being the one who challenges an original statement, I CAN be lazy, you CAN'T).
I counter with, it has a higher hood. Why do I need to prove what I say? You're the one who is claiming it can be done? (my claim is it cannot be done without raising the hood, which is just the opposite of what you claimed)
This is what I never get about the internet, people bitch about things "Company X can do it" and they never go the distance to actually PROVE THEY DID IT. (I don't have to prove my point, it's either proven or disproven by you proving your point).
I want proof Joe, or I want you to not post it. It's really that simple. (This is the luxury of being the one who challenges an original statement, I CAN be lazy, you CAN'T).
Are you saying the hood is not higher on the C7 Z06 than it is on the C7 StingRay? I said it was.
You are so good at "eyeballing" dimensions, then eyeball this....
My C2 coupe is 49.8" height over the top and my C6 Z06 is 49.0" over the top.
What is the height of the hood at it's highest point on the C2?
What is the height of the hood at it's highest point on the C6 Z06?
Surely you have seen both a C2 and a C6 also, so you should be able to "eyeball" their respective dimensions, and tell me what they are., in inches.
Both my C6 Z06 and my C2 are set at factory trim heights. If I lowered my C2 so it had the same ground clearance as my C6 Z06, what would be the height over the top and over the hood be, and which car would then be lower over the top?
Last edited by JoesC5; 08-31-2017 at 06:31 PM.
#40
Race Director
Are you saying that the AMG GT Does not have a 4L V8 with twin turbo's sitting under it's hood? That's what I said.
Are you saying the hood is not higher on the C7 Z06 than it is on the C7 StingRay? I said it was.
You are so good at "eyeballing" dimensions, then eyeball this....
My C2 coupe is 49.8" height over the top and my C6 Z06 is 49.0" over the top.
What is the height of the hood at it's highest point on the C2?
What is the height of the hood at it's highest point on the C6 Z06?
Surely you have seen both a C2 and a C6 also, so you should be able to "eyeball" their respective dimensions, and tell me what they are., in inches.
Both my C6 Z06 and my C2 are set at factory trim heights. If I lowered my C2 so it had the same ground clearance as my C6 Z06, what would be the height over the top and over the hood be, and which car would then be lower over the top?
Are you saying the hood is not higher on the C7 Z06 than it is on the C7 StingRay? I said it was.
You are so good at "eyeballing" dimensions, then eyeball this....
My C2 coupe is 49.8" height over the top and my C6 Z06 is 49.0" over the top.
What is the height of the hood at it's highest point on the C2?
What is the height of the hood at it's highest point on the C6 Z06?
Surely you have seen both a C2 and a C6 also, so you should be able to "eyeball" their respective dimensions, and tell me what they are., in inches.
Both my C6 Z06 and my C2 are set at factory trim heights. If I lowered my C2 so it had the same ground clearance as my C6 Z06, what would be the height over the top and over the hood be, and which car would then be lower over the top?
BTW, bringing a C2 verses C6 ROOF height into the discussion was genius....if you can't dazzle 'em with brilliance....
Last edited by jimmyb; 08-31-2017 at 07:01 PM.