Quick Silver Z

sorry if dupe...

http://www.edmunds.com/chevrolet/cor...son-test4.html

Published: 09/24/2013

Gr8ful

Great review. Best Corvette ever.

Boozman

Great review

Thanks

Big Dan 427

Nice write up. Still 1/4 mile times are coming up short.

Chicago1

I would love to own a 13/14 GT500 one day. What a beast!!! Good job vette!!!

travisnd

Edmunds did all of these tests on the same day with the same C7.... hence the same "off" quarter mile time. The test location was at altitude and it was done on 91 octane gas. The 113 trap speed makes me think the car was pulling timing for whatever reason.

450hp mike9

I traded my 2007 GT500 in on The C7 and can't wait to get it. The current Shelby GT500 has 662hp and really can't put that power down very well. My 07 had 500hp and it could not put the power down very well on a normal road . No traction and a beast to drive fast. That engine layout has a lot of height so the front end is twice as high as the Vette.

Big Dan 427

You think the factory tune is ultra sensitive to fuel quality Travis? I wonder what a gallon of E85 would do to a tank of 91. The 1/4 times have repeatedly been slow, something has to give.

Snorman

Exactly.
There was a big difference in ambient air conditions between the Edmunds test where they ran a 12.0 at 117.3 and the more recent test where they ran a 12.3x at 113.9 mph (and they have been regurgitating that time on every comparison test...not running the same ET/trap speed over and over again).
On the 12.0 at 117.3 pass in a '14 Corvette ran by Edmunds in July, air temp was 70*, baro was 30.19" at 965' and they were running 93 octane. On the 12.3 at 113.9 mph pass that they keep repeating in various "comparisons" it was 91*, baro was 28.81" at 1121' and they were running 91 octane it. Few cars are going to put up optimal results in such conditions.

I'll also note that the acceleration times they got for the GT500 in this comparison are horrible. Several mags have gone mid-high 11's in them and they are a solid 125 mph car, even in less-than-ideal conditions.
S.

VIN666

So when testing two domestics, price apparently does matter.
When a domestic runs against an import that card can't be played for some reason... Interesting LOL

quote:
Despite an 82-hp advantage, the Shelby did not prevail. The ZL1 Camaro came out on top on the strength of its superior chassis and, to a lesser extent, a lower price.

DrPowers

Not a repost! I was really waiting for this once since my friend has a GT 500 and I need to one up him. Might have to get this article framed.

speedlink

The car is tuned for 91 octane. No problem there.

Snorman

The manual states 91-octane minimum, but I'm wondering if the PCM adjusts and it makes more power with 93. A 3.4 mph trap speed delta is pretty big, although they did run in pretty crappy conditions. Heading out now, but those test condition numbers can be plugged into a DA calculator on Dragtimes to see the differences between the 117 mph Edmunds pass and this one.
S.

Big Dan 427

Maybe one of you mad scientists can do a power to weight ratio comparison, after all the "Stang is throwing around 426 more pounds.

VIN666

3870 / 662 = 5.85 lbs / hp - Rustang
3443 / 460 = 7.48 lbs / hp - Vette

VetteNGT500

2 totally different cars, poor comparision.

VIN666

Mustang - 10.6 @ 125
Vette - 11.6 @ 115

That's with a 200 lbs driver.
Conclusion - Vette puts the power down a lot better than the 'stang.

Enough mad science for one day

travisnd

Just because it can run on 91 doesn't mean it won't advance timing on 93. Also, if the car was sensing knock for any reason it's going to pull timing and result in a lower trap speed.

Dream C-5

I have a 2014 Shelby GT500 and it is a beast but it's not a C-7
It's a muscle car for sure but a not a sports car.

VIN666

113 is pretty close to max for the Vette's weight and power.