Hard Data ....
Le Mans Master
Joined: May 2010
Posts: 7,756
Likes: 173
From: Ventura CA
If the weight does not go to hell it may perform well.
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
Maybe that Official GM graph was when the engine was running in 4 cylinder mode. Yep, I bet it was. Hey everyone, the LT1 has 900 horsepower and 900lb-ft of torque. GM wasn't telling the whole story with that graph. Don't have any proof, but I know it's true.
Burning Brakes
Joined: Oct 2012
Posts: 933
Likes: 3
From: Dallas, TX
Do you know that GM was not telling the whole story with that graph?
Maybe that Official GM graph was when the engine was running in 4 cylinder mode. Yep, I bet it was. Hey everyone, the LT1 has 900 horsepower and 900lb-ft of torque. Don't have any proof, but I know it's true.
Maybe that Official GM graph was when the engine was running in 4 cylinder mode. Yep, I bet it was. Hey everyone, the LT1 has 900 horsepower and 900lb-ft of torque. Don't have any proof, but I know it's true.
Le Mans Master
Joined: Aug 2009
Posts: 5,504
Likes: 2
From: Sacramento California
Weight does not have to go up, we shall see what the fuel economy is like after GM cranks up the motor. The fact that neither MPG, weight or hp are disclosed are a very good indicator of what actually takes place and where this is heading. 
Melting Slicks
Joined: Jun 2005
Posts: 2,216
Likes: 1
St. Jude Donor '12-'13-'14, '16
I know how the SAE certification is done. Known about since around 2005.
I didn't ask how the certification was done. I asked if the magical numbers the OP is saying appears in the SAE paper were SAE certified numbers(the numbers that will be advertised by GM).
I still haven't seen an answer to my question about the 7200 RPM horsepower readings that are supposed to be mentioned in the SAE paper. I know from the dyno graph that GM has released for the C7's LT1, that the redline is 6500 and the horsepower starts dropping at 5900 RPM and that the LT1's torque drops off faster than the LS3's(which indicates that the engine is not going to put out magical horsepower numbers at high RPMs, above the LS3's).
I didn't ask how the certification was done. I asked if the magical numbers the OP is saying appears in the SAE paper were SAE certified numbers(the numbers that will be advertised by GM).
I still haven't seen an answer to my question about the 7200 RPM horsepower readings that are supposed to be mentioned in the SAE paper. I know from the dyno graph that GM has released for the C7's LT1, that the redline is 6500 and the horsepower starts dropping at 5900 RPM and that the LT1's torque drops off faster than the LS3's(which indicates that the engine is not going to put out magical horsepower numbers at high RPMs, above the LS3's).
Le Mans Master
Joined: Aug 2009
Posts: 5,504
Likes: 2
From: Sacramento California
Do you know that GM was not telling the whole story with that graph?
Maybe that Official GM graph was when the engine was running in 4 cylinder mode. Yep, I bet it was. Hey everyone, the LT1 has 900 horsepower and 900lb-ft of torque. GM wasn't telling the whole story with that graph. Don't have any proof, but I know it's true.
Maybe that Official GM graph was when the engine was running in 4 cylinder mode. Yep, I bet it was. Hey everyone, the LT1 has 900 horsepower and 900lb-ft of torque. GM wasn't telling the whole story with that graph. Don't have any proof, but I know it's true.
Burning Brakes
Joined: Oct 2012
Posts: 933
Likes: 3
From: Dallas, TX
As for MPG, they have not given us final numbers yet, but it has been made pretty clear that mileage will be VERY good for a 450-500 hp machine. Certainly a notable improvement over the C6.
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
Could the 7200 RPM be the redline for an optional engine that will indeed have more horsepower than the base LT1 engine and that is what the SAE paper is about? I Don't know and neither do you, so I'll stick with the known information that GM has released so far regarding the C7's LT1 to be used in the base C7..
Last edited by JoesC5; Apr 9, 2013 at 06:03 PM.
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Burning Brakes
Joined: Oct 2012
Posts: 933
Likes: 3
From: Dallas, TX
Because the OP said the SAE had numbers. If the SAE has "certified" numbers, then why can't GM release them. Or is the SAE paper about another genV engine that is not going to be used in the base C7(thus the 7200 RPM crap that we know is not the redline of the LT1 that GM has said will be in the case C7).
EDIT: Nevermind, I suppose you may be talking about a non-Corvette powertrain using the engine. Fair enough, I suppose.
I'm also still genuinely curious about the answer to the question I asked you a minute ago.
Last edited by RocketGuy3; Apr 9, 2013 at 06:04 PM.
Melting Slicks
Joined: Jun 2005
Posts: 2,216
Likes: 1
St. Jude Donor '12-'13-'14, '16
Because the OP said the SAE had numbers. If the SAE has "certified" numbers, then why can't GM release them. Or is the SAE paper about another genV engine that is not going to be used in the base C7(thus the 7200 RPM crap that we know is not the redline of the LT1 that GM has said will be in the case C7).
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
And you can bet your bottom dollar that the third party witness has to sign a confidentiality agreement not to release any info without GM's consent. And that means to the SAE.org.
Last edited by JoesC5; Apr 9, 2013 at 06:13 PM.
Le Mans Master
Joined: May 2010
Posts: 7,756
Likes: 173
From: Ventura CA
Melting Slicks
Joined: Jun 2005
Posts: 2,216
Likes: 1
St. Jude Donor '12-'13-'14, '16
DO you understand anything? I'm the one who posted the link to the test standard, It says an SAE qualified witness is watching, who do think is certifying the test?
Le Mans Master
Joined: Aug 2009
Posts: 5,504
Likes: 2
From: Sacramento California
Huh? Is that to imply that you think all of those will be bad news? You're not really a glass-half-full kinda guy, are you? Not to mention that I just don't see the logic behind that conclusion at all.
As for MPG, they have not given us final numbers yet, but it has been made pretty clear that mileage will be VERY good for a 450-500 hp machine. Certainly a notable improvement over the C6.
As for MPG, they have not given us final numbers yet, but it has been made pretty clear that mileage will be VERY good for a 450-500 hp machine. Certainly a notable improvement over the C6.
Yes, exactly, they will be very good for 450 hp car, this does not mean they have to be better than for 436 hp car, does it? You obviously do not get this part.
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
But it sure makes nice fodder for those that refuse to believe what GM has made available to the general public and want to believe their own pie in the sky fantasy numbers, that they can't substantiate with any factual evidence from GM.
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
GM has said nothing about offering a Pepto Bismo Pink color for the C7 either. But if Vickie Kerbeck kept making posts every day about how she believes the C7 will be(or should be) available in Pepto Bismo Pink, does that make it factual information that Pepto Bismo Pink will be offered, today? Now a month from now, and GM says they will offer a Pepto Bismo Pink color for the C7, then I will believe it. But I won't today as there is nothing from GM that says that Pepto Bismo Pink will be offered but only Vickie wishing there was, so she wouldn't have to have her daddy paint one in their body shop just for her.
Melting Slicks
Joined: Jun 2005
Posts: 2,216
Likes: 1
St. Jude Donor '12-'13-'14, '16
And don't you understand that the witness in neither employed by GM or the SAE. The SAE is not present when the horsepower/torque is certified. Do you know for a fact that a SAE witness was on hand to certify the numbers the OP is talking about being in that SAE paper he linked. It could very well be some engine development program that is going on that GM thought would make a nice SAE paper, and nothing to do with the LT1 going into the base C7.
But it sure makes nice fodder for those that refuse to believe what GM has made available to the general public and want to believe their own pie in the sky fantasy numbers, that they can't substantiate with any factual evidence from GM.
But it sure makes nice fodder for those that refuse to believe what GM has made available to the general public and want to believe their own pie in the sky fantasy numbers, that they can't substantiate with any factual evidence from GM.
[QUOTE=JoesC5;1583593327]Do you know for a fact that a SAE witness was on hand to certify the numbers the OP is talking about being in that SAE paper he linked.
I think this pretty much says it all.....
Intermediate
Joined: Jul 2009
Posts: 26
Likes: 0
From: Auburn Alabama
I really should put you on the ignore list, but this statement is just ridiculous. GM has said the c7 will have a significant MPG improvement over the C6 while increasing in peak HP and TQ as well as under the curve. Significant is more than an average increase of 2mpg but less than an average increase of 8 mpg. It's irritating that someone has to be so specific with you because as soon as your point has been proven incorrect you back track or move to a loosely similar but unrelated point.
