How GM’s Corvette engineers pulled off the impossible
07-23-2013, 10:55 AM
#61
Team Owner
Didn't pay a gas guzzler tax on my 2009 Z06(purchased in July 2008) either, but a friend did pay a gas guzzler tax on his 2009 ZR1(purchased in summer of 2008)
Last edited by JoesC5; 07-23-2013 at 10:58 AM.
07-23-2013, 11:00 AM
#62
Safety Car
Last Fall, did a 3400 mile cruise to New England and averaged 27.2 MPG for that trip. The Springfield, MO(home) to Niagara Falls(all Interstate driving at 70-75 MPH) leg of the trip, I averaged 29.2 MPG.
I didn't buy my Z06 for great gas mileage, but I have absolutely no problems accepting it. Better things to spend my money on than gasoline, when on a cruise.
Plus, when I want to hammer it, I have stunning performance. Best of both worlds. If I had the 7 speed from the C7 with it's .42:1 seventh gear, my mileage would have been around 1 MPG better average.
I didn't buy my Z06 for great gas mileage, but I have absolutely no problems accepting it. Better things to spend my money on than gasoline, when on a cruise.
Plus, when I want to hammer it, I have stunning performance. Best of both worlds. If I had the 7 speed from the C7 with it's .42:1 seventh gear, my mileage would have been around 1 MPG better average.
Agreed on the fuel economy, it's not a bad thing but not a reason to noy buy either.
Your comment about the C7 extra gear is interesting, how many rpm's do you think will drop when lugging along at 70-75mph in 7th?
07-23-2013, 11:02 AM
#63
Team Owner
07-23-2013, 11:06 AM
#64
I don't remember paying a gas guzzler tax on my 1998 C5(purchased in Nov 1997), but I did pay a Luxury tax on it.
Didn't pay a gas guzzler tax on my 2009 Z06(purchased in July 2008) either, but a friend did pay a gas guzzler tax on his 2009 ZR1(purchased in summer of 2008)
Didn't pay a gas guzzler tax on my 2009 Z06(purchased in July 2008) either, but a friend did pay a gas guzzler tax on his 2009 ZR1(purchased in summer of 2008)
07-23-2013, 11:11 AM
#65
Team Owner
Beautiful ride near the Falls, and a beautiful place.
Agreed on the fuel economy, it's not a bad thing but not a reason to noy buy either.
Your comment about the C7 extra gear is interesting, how many rpm's do you think will drop when lugging along at 70-75mph in 7th?
Ron I made the best paper triangular footballs we all kicked field goals with in the back of the class room.
Agreed on the fuel economy, it's not a bad thing but not a reason to noy buy either.
Your comment about the C7 extra gear is interesting, how many rpm's do you think will drop when lugging along at 70-75mph in 7th?
Ron I made the best paper triangular footballs we all kicked field goals with in the back of the class room.
That same 1430 RPM is equal to the current Z06's sixth speed at 66 MPH.
07-23-2013, 11:36 AM
#66
Safety Car
Speed limit on I-70 across Kansas and Colorado is 75 MPH. Cruising at 79 MPH, is 1700 RPM with the Z06's .5:1 6th gear. With the 7 speed's .42:1 7th gear, the RPM would drop to 1430. The torque of the LS7 at that low RPM is high enough to not cause lugging.
That same 1430 RPM is equal to the current Z06's sixth speed at 66 MPH.
That same 1430 RPM is equal to the current Z06's sixth speed at 66 MPH.
07-23-2013, 01:36 PM
#67
Team Owner
When GM changed the gear ratios in the ZR1, at 75 MPH the RPM's dropped 550 in 6th gear, and the EPA highway number went from 20 MPG to 21 MPG.
Last edited by JoesC5; 07-23-2013 at 01:43 PM.
07-23-2013, 01:41 PM
#68
Le Mans Master
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....
07-23-2013, 02:12 PM
#69
Le Mans Master
07-23-2013, 02:22 PM
#70
Team Owner
Can you point me in the direction of this wonderful Prius that has 505 HP, does 125 MPH in the quarter and pull 1.03g's on the skidpad, with a top speed of 198, while delivering that wonderful gas mileage that the Prius is known for? I don't want to give up anything. I want it all!!!!!!
If you can't, I'll stick with my Z06 and it's great 28-29 MPG highway gas mileage.
If you can't, I'll stick with my Z06 and it's great 28-29 MPG highway gas mileage.
07-23-2013, 02:29 PM
#71
Race Director
07-23-2013, 02:51 PM
#72
Burning Brakes
So, for those of us that actually enjoy going 300+ miles on a tank of gas. Those that drive to the track, then on the track, and then back home or rockin some twisties on a weekend. I give you guys the big
Corvette is the best middle ground of everything. Mileage, Power, Cost of Ownership, Storage capacity, etc, etc, etc... As mentioned before, pretty much EVERYTHING got better with the C7.
Still surprised that so many Corvette owners have managed to actually move out from living with their parents with their bad attitudes. If my son whined like some of the people on this forum, it would be off to military school with him in a heartbeat.
Corvette is the best middle ground of everything. Mileage, Power, Cost of Ownership, Storage capacity, etc, etc, etc... As mentioned before, pretty much EVERYTHING got better with the C7.
Still surprised that so many Corvette owners have managed to actually move out from living with their parents with their bad attitudes. If my son whined like some of the people on this forum, it would be off to military school with him in a heartbeat.
07-23-2013, 03:08 PM
#73
AIR FORCE VETERAN
The proof is in the engeneering.
07-23-2013, 04:21 PM
#74
Le Mans Master
It does not look promising. I hope they remove it or have a way to disable on the 2015 C7 if it is bad as the Camaro guys say.
http://www.camaro5.com/forums/showthread.php?t=160568
07-23-2013, 05:16 PM
#75
Burning Brakes
I went to the Camaro forum to see what they are saying about AFM.
It does not look promising. I hope they remove it or have a way to disable on the 2015 C7 if it is bad as the Camaro guys say.
http://www.camaro5.com/forums/showthread.php?t=160568
It does not look promising. I hope they remove it or have a way to disable on the 2015 C7 if it is bad as the Camaro guys say.
http://www.camaro5.com/forums/showthread.php?t=160568
07-23-2013, 07:16 PM
#76
07-23-2013, 07:18 PM
#77
So, for those of us that actually enjoy going 300+ miles on a tank of gas. Those that drive to the track, then on the track, and then back home or rockin some twisties on a weekend. I give you guys the big
Corvette is the best middle ground of everything. Mileage, Power, Cost of Ownership, Storage capacity, etc, etc, etc... As mentioned before, pretty much EVERYTHING got better with the C7.
Still surprised that so many Corvette owners have managed to actually move out from living with their parents with their bad attitudes. If my son whined like some of the people on this forum, it would be off to military school with him in a heartbeat.
Corvette is the best middle ground of everything. Mileage, Power, Cost of Ownership, Storage capacity, etc, etc, etc... As mentioned before, pretty much EVERYTHING got better with the C7.
Still surprised that so many Corvette owners have managed to actually move out from living with their parents with their bad attitudes. If my son whined like some of the people on this forum, it would be off to military school with him in a heartbeat.
07-23-2013, 07:21 PM
#78
Team Owner
Paved all the way to the top now. Parking lot at the top is still gravel. Very enjoyable drive. Just as we were getting close to the top, a C-130 flew by at slightly lower altitude and you could clearly see the pilot. That was neat.
07-24-2013, 08:56 AM
#79
Le Mans Master
So, for those of us that actually enjoy going 300+ miles on a tank of gas. Those that drive to the track, then on the track, and then back home or rockin some twisties on a weekend. I give you guys the big
Corvette is the best middle ground of everything. Mileage, Power, Cost of Ownership, Storage capacity, etc, etc, etc... As mentioned before, pretty much EVERYTHING got better with the C7.
Still surprised that so many Corvette owners have managed to actually move out from living with their parents with their bad attitudes. If my son whined like some of the people on this forum, it would be off to military school with him in a heartbeat.
Corvette is the best middle ground of everything. Mileage, Power, Cost of Ownership, Storage capacity, etc, etc, etc... As mentioned before, pretty much EVERYTHING got better with the C7.
Still surprised that so many Corvette owners have managed to actually move out from living with their parents with their bad attitudes. If my son whined like some of the people on this forum, it would be off to military school with him in a heartbeat.