Suspension differences
Race Director
Joined: Aug 2016
Posts: 12,812
Likes: 10,229
From: Garden Valley CA
If they did their job right they tailored the suspension spring rates and MSRC settings to the job at hand. The base suspension is described as set for touring so I don't think you can say they used all Z51 (lighter car with lighter wheels and brakes) or E-Ray (heavier car with lighter brakes). There may be some shared parts but I'd expect some specific parts/settings or a mixture of parts.
Last edited by RKCRLR; Apr 14, 2026 at 10:08 PM.
Thread Starter
Race Director
Joined: Dec 2006
Posts: 12,391
Likes: 2,910
From: Fort Worth, Texas
If they did their job right they tailored the suspension spring rates and MSRC settings to the job at hand. The base suspension is described as set for touring so I don't think you can say they used all Z51 (lighter car with lighter wheels and brakes) or E-Ray (heavier car with lighter brakes). There may be some shared parts but I'd expect some specific parts/settings or a mixture of parts.
Racer
Joined: Oct 2022
Posts: 276
Likes: 324
I’m less concerned about the spring rates and more about the anti roll bars and bushings.
If I was to guess:
Grand Sport Base = Z06 suspension package with minor MRSC tuning to run more compliant with the all-seasons, or the exact same as the Z52 sport/Z06 Base
Z52 Sport = Z06 base
Z52 Track = Z07
We also have to remember the Z06 is nearly the same weight, and with the Aero packages also being similar, aero loads will be the same as well. If this is a parts bin car, then parts bin spring rates, suspension bushings, anti roll bars, and MRSC tuning would make the most sense economically.
If I was to guess:
Grand Sport Base = Z06 suspension package with minor MRSC tuning to run more compliant with the all-seasons, or the exact same as the Z52 sport/Z06 Base
Z52 Sport = Z06 base
Z52 Track = Z07
We also have to remember the Z06 is nearly the same weight, and with the Aero packages also being similar, aero loads will be the same as well. If this is a parts bin car, then parts bin spring rates, suspension bushings, anti roll bars, and MRSC tuning would make the most sense economically.
Race Director
Joined: Aug 2016
Posts: 12,812
Likes: 10,229
From: Garden Valley CA
Yes, but spring rates and shock damping do different things. Shock damping can be used to mimic spring rate to a certain extent but in an optimized system the spring rates and damping are tuned for the specific use points. In cars with MSRC they may optimize the spring rates for touring and use damping tuning to firm up the suspension for track use or optimize the spring rates for track use and use damping tuning to soften up the ride for touring, or somewhere in between. They may be able to go to the parts bin for springs, sway bars, bushings, etc. or they may decide to have some specific components for the different GS suspensions. It is possible that all of the components are exactly the same as some other C8 suspension system but it is also possible that they will be different.
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Instructor
Joined: Aug 2025
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I assume even the base GS will have PTM because it has mag ride. Wouldn’t that PTM have a “track” setting even though GM advertises the base GS as a Touring Suspension? Wonder how the MSRC shocks will feel in the “track” setting of a Touring Suspension? What I ‘m getting at here is you should certainly be able to enjoy good track performance from the base GS compared to say the SR Z51, even considering the all season tires on the GS? Anyone care to guess?
Thread Starter
Race Director
Joined: Dec 2006
Posts: 12,391
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From: Fort Worth, Texas
I assume even the base GS will have PTM because it has mag ride. Wouldn’t that PTM have a “track” setting even though GM advertises the base GS as a Touring Suspension? Wonder how the MSRC shocks will feel in the “track” setting of a Touring Suspension? What I ‘m getting at here is you should certainly be able to enjoy good track performance from the base GS compared to say the SR Z51, even considering the all season tires on the GS? Anyone care to guess?
Thread Starter
Race Director
Joined: Dec 2006
Posts: 12,391
Likes: 2,910
From: Fort Worth, Texas
I’m less concerned about the spring rates and more about the anti roll bars and bushings.
If I was to guess:
Grand Sport Base = Z06 suspension package with minor MRSC tuning to run more compliant with the all-seasons, or the exact same as the Z52 sport/Z06 Base
Z52 Sport = Z06 base
Z52 Track = Z07
We also have to remember the Z06 is nearly the same weight, and with the Aero packages also being similar, aero loads will be the same as well. If this is a parts bin car, then parts bin spring rates, suspension bushings, anti roll bars, and MRSC tuning would make the most sense economically.
If I was to guess:
Grand Sport Base = Z06 suspension package with minor MRSC tuning to run more compliant with the all-seasons, or the exact same as the Z52 sport/Z06 Base
Z52 Sport = Z06 base
Z52 Track = Z07
We also have to remember the Z06 is nearly the same weight, and with the Aero packages also being similar, aero loads will be the same as well. If this is a parts bin car, then parts bin spring rates, suspension bushings, anti roll bars, and MRSC tuning would make the most sense economically.
Le Mans Master
Joined: Jul 1999
Posts: 5,047
Likes: 297
From: Cincinnati Ohio
After you do $9k TOF and $9k CCBs you might as well just get the full track package unless you REALLY don't want the Cup tires.
Thread Starter
Race Director
Joined: Dec 2006
Posts: 12,391
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From: Fort Worth, Texas
Le Mans Master
Joined: Jul 1999
Posts: 5,047
Likes: 297
From: Cincinnati Ohio
The Z06 high wing package is $9k in carbon flash and requires the $9k ceramic brakea be ordered with it.
I think you can get the newer three stanchion wing in carbon flash for ~$2k. It is a dealer LPO. Installed at dealer, not the factory.
I think you can get the newer three stanchion wing in carbon flash for ~$2k. It is a dealer LPO. Installed at dealer, not the factory.
Last edited by Rob Willis; Apr 27, 2026 at 09:46 AM.
Melting Slicks
Joined: Jun 2005
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From: Rock Hill SC (Charlotte NC Area)
2022 C8 of the Year Finalist - Modified
2022 C7 of the Year Finalist - Unmodified
Yes, you can do those options individually, but to be clear (if you weren't already aware), the "extended" splitter, while similar, is not the same design as the one included in the CF Aero & Track packages, and the $2K wing is the "three-stanchion high wing", not the Z06-style wing from the CF Aero/Track packages. Also, both of those are composite material rather than carbon fiber.
Thread Starter
Race Director
Joined: Dec 2006
Posts: 12,391
Likes: 2,910
From: Fort Worth, Texas
Yes, you can do those options individually, but to be clear (if you weren't already aware), the "extended" splitter, while similar, is not the same design as the one included in the CF Aero & Track packages, and the $2K wing is the "three-stanchion high wing", not the Z06-style wing from the CF Aero/Track packages. Also, both of those are composite material rather than carbon fiber.
Le Mans Master
Joined: Jul 1999
Posts: 5,047
Likes: 297
From: Cincinnati Ohio
If you look towards the end of the thread on "what spec are you targeting" in the GS forum I posted a few video links that would probably help if interested in 3 stanchion wing...
Last edited by Rob Willis; Apr 27, 2026 at 11:32 AM.
Melting Slicks
Joined: Jun 2005
Posts: 2,701
Likes: 1,023
From: Rock Hill SC (Charlotte NC Area)
2022 C8 of the Year Finalist - Modified
2022 C7 of the Year Finalist - Unmodified
Its similar to the current Stingray high wing, but considerably larger and a little more aggressive design, IMO. I never really warmed up to the Stingray high wing, but I kinda like the three-stanchion. Here's a Rick Conti video that really shows it off, or you can go into the GM configurator for the 2026 Z06 and add it to a car and see what it looks like.
Racer
Joined: Oct 2022
Posts: 276
Likes: 324
I thought I saw/heard in a video that the Z52 MSRC and suspension tuning was different than the base, but now I can't find it anymore. Perhaps I imagined that.
The wing that can be optioned separate from the Z52 Track, is the three stanchion high wing. To get the Z06 wing you're still required to get the track package and CCB's.
V09 auxiliary cooler now standard on all Ls6's, but only the Grand Sport gets the same thicker front cores as the Z06/ZR1. From what they mentioned it made it seem like there are no more center rads on the Z06/ZR1 anymore, just the GSx will have it for the electric motor.
Racer
Joined: Oct 2022
Posts: 276
Likes: 324
Ok didn't halucinate it.
https://news.gm.com/home.detail.html...s-history.html
Grand Sport: Three Chassis Packages
There’s lot of different Corvette customers who use their cars in different ways, and within the new Grand Sport lineup, engineers created three options to accommodate.
https://news.gm.com/home.detail.html...s-history.html
Grand Sport: Three Chassis Packages
There’s lot of different Corvette customers who use their cars in different ways, and within the new Grand Sport lineup, engineers created three options to accommodate.
- Standard Touring Suspension: The base Corvette Grand Sport gets a chassis tuned for daily use and spirited driving alike. Magnetic Ride Control dampers come standard, as does Michelin Pilot Sport All Season 4+ tires and a new brake package to offer great performance while minimizing dust. “This offering is the ultimate GT, canyon-carving, road-tripping, all-out Corvette,” Holder says.
- Z52 Sport Performance Package: This adds Michelin Pilot Sport 4S summer tires1, a stiffer suspension tune, and the J56 high-performance iron brake package from the Z06. “That car is meant for the enthusiast that plans to take their Grand Sport to the track,” Holder explains. “We want to offer something that’s within the tradition of the Grand Sport.”
- Z52 Track Performance Package: For ultimate track performance, this package adds the J57 carbon-ceramic brake package optional on the Z06, Michelin Pilot Sport Cup 2R summer tires1, unique suspension tuning, and a carbon-fiber aero package. “This package is very mission-specific,” Holder says. “It's for the particular customer that's looking for super handling capability but wants the big-torque performance of the LS6.