badboy01

folks does the grandsport and the zo6 share the same supension. thank you.

Glennm27

Yes

davepl

And it's only 5K more than a Z51... I guess I can see why the Grand Sport has become the most popular Corvette!

mtaxman

Pretty much a "base" ZO6 without the engine...brakes are a strong upgrade, etc.

JerryU

It's also ~100 pounds lighter than the Z06. The reduced weight is from the right spot, the front wheels, 50/50 weight balance.

JerryU

Don't have the part numbers but that is possible. They tune the mag shock system per model so probably is optimized.

My experiance in a tight moderate speed turn I took for 3 1/2 years with my 2014 C7 Z51 is those Grand Sport wider tires and balance are great. Took that turn faster than I could with the 2014. Know I was near the limit as the rear end stepped out a bit! Nannies engngaged. I was surprised on how fast and easy it recovered.

Similar comments in a video by a car mag doing a skid pad test. Very well balanced and predictable.

iclick

C&D mag reported that the suspension calibration on the GS is "tuned to fit nicely about halfway between the Stingray and the Z06 on the passive-aggressive continuum," likely in part because of the weight bias in front.

Note that I deleted and replaced my original message since you replied after finding a C&D article on the GS.

I haven't had my GS anywhere near the limit yet, but based on the overall feel and one evasive manuever (styrofoam lid flying off a truck) @ 70mph I'm amazed at the control it has--snappier than my 2015 non-Z51 with Z51 rear bar was with less body roll. I've also noticed that the GS M7's traction control is much better at full throttle--thanks to the larger tires, MRSC, and eLSD calibrations. My 2015 A8 didn't have the last two and it would sometimes fishtail a bit at WOT, while the GS won't do that as long as the pavement is dry.

JerryU

Yep, evasive maneuvers to me are the key. I do have fun on the single lane road around the fountain at the end of my street! Grass field on the outside of the turn, no other cars so a fun turn!

With my 2014, Z51 was traveling on I95 on cruise control about 7 mph over the speed limit. That is a problem as many are 15 mph over! Was behind an SUV in the center lane, had looked in my mirrors and no one speeding up in the left. A large 18 wheeler tire tread appeared fully in my lane. Instantly turned to the left lane, felt like a GoKart! Very stable. Saved a ~$1000 carbon fiber splitter! They are even worse than deer as there are many more!

Tire treads and my radar detector always blipping on I95 from rolling Troppers is why I usually use the back roads the 16 miles into town!

village idiot

I did one session in my Z51 and one (dry) session in my GS. Granted, my Z51 didn't have mag ride, but holy crap the difference was huge- which is to be expected when every tire is about 2" wider. I think I was 5 seconds faster in the GS.

onyx_z71

Since Mag Ride is still a $1795 option on a Z51, and is standard equipment on a Grand Sport, the difference is only $3205. The aero pkg, tires, cooling, and brake upgrades make the GS cost a no brainer.

bapd77

That's a pretty significant caveat.

thill444

While that is true on a new car my barely used 2016 Z51 with Magride, NPP, PDR, etc that had 2200 miles on the odometer was $11K cheaper than the base 2017 GS that I was looking at from MacMulkin. Extended warranty is about $1200.

If I were shopping brand new only I would have bought the GS. On the street the performance is almost identical. On the track I would rather have the GS for sure.

JerryU

I added LG Motorsports side skirts to my Z51 and a carbon fiber splitter. That cost ~$3000.

From my experiance (and many others) side skirts are needed on C7's to avoid marking the rocker panels or the GM heavy protective plastic from rocks thrown from the tires. Was able to remove the marked up plastic after adding the skirts. Sold the car after 3 1/2 years and rocker panels looked new. IMO side skirts are a must for protection not for looks.

rfopt

Has anyone reading this thread driven both the Grand Sport and Z06? I wonder how noticable the extra lbs in the front is during spirited driving? Or is it barely noticable at all.

davepl

I guess that part's nice, but I'd still take the blower if it weighed 500lbs (and it doesn't). No human can sense the difference in weight distribution between the Z and the GS, I doubt.

There's just no replacement for that torque once you've tasted it!

bapd77

I have driven both, numerous times. The only thing noticeable to me was how mich faster the Z06 is than the Grand Sport.

2cnd Chance

Yep $14,000.

village idiot

Power is pretty intoxicating, I'll give you that.

I bet I could feel 100lbs over the front on the track. I'm not sure how much it would slow me down but I bet I could feel it and it would make the car a bit less fun.

500lbs over the front is a really big deal

a66bbvet

The 2017 Grand Sport is faster from 0-60 mph than the Z06. 2017 GS is 3.6 sec, but can not find the numbers for the Z06. The Grand Sport is the third quickest production corvette every built. The only thing faster is the 2015 Z06 and the 2013 ZR1. The GS has the same engine as the Stingray, with a Z06 suspension, but the engineers made some change that allows the GS rear wheels to hookup better and run the 0-60 faster. Reference Extreme Vetting: 10 Quickest Production Corvettes article.

village idiot

The grand sport is a Z06 with about 200 less hp. It's not faster to 60. The "changes" are wider tires. The Grand Sport is slower to 60 than the stingray and it should be slower than the C6Z06 to 60, too. Maybe the PSS make up for the power and weight advantages of the C6Z06