How GM’s Corvette engineers pulled off the impossible
#1
Team Owner
Thread Starter
Member Since: Mar 2007
Location: Right Corner Pocket of Illinois
Posts: 32,282
Received 1,497 Likes
on
1,008 Posts
No-IL Events Coordinator
2020 C6 of the Year Finalist - Unmodified
2020 Corvette of the Year Finalist (appearance mods)
C6 of Year Winner (appearance mods) 2019
2018 C6 of Year Finalist
St. Jude Donor '12-'13-'14-'15-'16-'17-'18-'19-'20-'21-'22-'23-'24
How GM’s Corvette engineers pulled off the impossible
#3
AIR FORCE VETERAN
The fact that the car makes 460 HP and gets 30 MPG is not hype it is good engineering. That is more HP and more MPG then any other Corvette in history. You might not think that is a big deal but it surly is amazing. What that means it will kick your LS3 Corvettes a$$ and get better millage doing it.
#6
Drifting
I'm glad for the added MPG, but a bit surprised with the publics response
From the article:
"With jaw dropped firmly on the floor, I jumped on the horn with Chevrolet’s Bala Murthy, ... to find out how the normally thirsty Corvette’s fuel-saving sorcery was accomplished.
"With jaw dropped firmly on the floor, I jumped on the horn with Chevrolet’s Bala Murthy, ... to find out how the normally thirsty Corvette’s fuel-saving sorcery was accomplished.
First of all that is a terrible sentence and secondly it still surprises me how many in the public don't know about the fuel efficiency of Corvette's (particullarly C5 & C6). It makes me wonder if GM had published the Standard Coupe's MPG better would they have sold more....
#7
Team Owner
The fact that the car makes 460 HP and gets 30 MPG is not hype it is good engineering. That is more HP and more MPG then any other Corvette in history. You might not think that is a big deal but it surly is amazing. What that means it will kick your LS3 Corvettes a$$ and get better millage doing it.
At this point, the LT1 looks to be a winner.
#8
#9
#10
Not hype at all. Engineers are going to great lengths just to gain .5 mpg these days. Just look at the move to electric power steering. For the C7 to gain power, performance and fuel economy while experiencing weight creep over the C6 is very impressive.
#12
Race Director
Member Since: Aug 1999
Location: Bluffton SC via Canton Oh
Posts: 11,351
Received 1,981 Likes
on
1,141 Posts
It's all about the money to me..........They pack that much HP into it and save me a gas guzzer tax.........you go GM!!!!
Pay 3,4 8, K as a tax........ and get what for that?
Pay 3,4 8, K as a tax........ and get what for that?
#13
Remember that the C7 has more hp and yet will get a lot better mpg on the highway. I'm guessing the average owner who is trying will average 35+ at 70 on the freeway with the manual in 7th gear.
This is all far from impossible and that's good news since the Corvette has to get significantly better mpg in the years to come.
Last edited by BlueOx; 07-22-2013 at 12:00 PM.
#14
#15
Team Owner
Member Since: Sep 2005
Location: Big Bend Country, TX
Posts: 29,114
Received 2,186 Likes
on
1,337 Posts
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
Meh ! .............................. Damn It Bowling Green .............. I want the dang car ...................... NOW !
#16
Scraping the splitter.
S.
#17
Team Owner
Member Since: Apr 2001
Location: S.W. Ohio. . . . . . NRA Life Member
Posts: 54,199
Received 173 Likes
on
107 Posts
it's not burning half the fuel; the load is not halved.
And there's more drag on the engine - having to rotate "dead mass" (non functioning cylinders).
AFM does help; but not to the extent you are hoping it does.
#18
Safety Car
Not that big a deal IMO. The Corvette is a 3300lb. aerodynamically designed vehicle and the hp/epa have not changed much from the predeccessor. With all of the new electronics it should have been better. The 4300lb. Acura MDX increased its highway mpg by 6mpg in part by adding DI, VCM and drive by wire. The front wheel drive gets 28 on the highway (one more) than the AWD. Oh and Acura shaved 275 pounds out of the old car, so it sure isn't impossible to cut fuel usage.
#19
Scraping the splitter.
It's going to be interesting to see how creative manufacturers have to get in coming years to meet CAFE '16. I think AFM and DI are going to be just the beginning.
S.
#20
Drifting
The fact that the car makes 460 HP and gets 30 MPG is not hype it is good engineering. That is more HP and more MPG then any other Corvette in history. You might not think that is a big deal but it surly is amazing. What that means it will kick your LS3 Corvettes a$$ and get better millage doing it.
I think some of you guys are a bit too sensitive. The fact is just about every time a car manufacture redesigns a motor, these type of results are common more then not (more hp + better mpg) & that is the basis for me stating "pulled off the impossible" is more hype than anything to me. I understand they want to market the car to sell them but lets be real about what is normal engineering & what is considered the impossible. It seems like to me cars using Direct Injection get about 10-15% more HP so if tuned to improve mpg, getting about half that hp gain seems like a NORMAL trade off/outcome.
I remember a number of people questioning why GM was not able to get more hp out of this motor - remember when a lot of people were predicting 480-500+ hp before we knew the numbers?
The shift I have seen is when the initial designs were coming out & less data was know, people were not as invested in the final product & a broader range of opinions were being accepted. Now, many have fell in love with the car, ordered it, & it seems like any discussion becomes a situation where people get really upset if anyone states anything less then the C7 is the best car ever produced, completely different than any Corvette ever designed, etc.