2017 Corvette GS MRC upgrade
02-13-2018, 08:17 AM
#21
Pro
Thread Starter
Update. I drove it to a friend's house in 30 degree weather. Ride was harsher that trip home from the dealer after install. I attribute most to cold tires.
Weather just not cooperating.........
MORE TO COME
Weather just not cooperating.........
MORE TO COME
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LeManscoupe05 (02-13-2018)
02-15-2018, 02:43 AM
#22
16 Vettes and counting…..
I picked up my 2017 GS coupe yesterday afternoon after the upgrade and sitting for 8 hours. The ride controls had defaulted to Touring mode, which in the past caused the steering to be overly sensitive. The steering response in Touring mode on ride home was MUCH BETTER - more solid and very similar to the previous Sport setting steering. The road surface on the way home was on the Interstate that was concrete with expansion joints with some different surface finishing. The ride was MUCH IMPROVED with no harsh jarring as before the "upgrade".
I was in heavy traffic so I was not able to do much with modes or settings but so far I am very favorably impressed. I still think GM should have offered this free, but is the $350 plus tax worth it? - I say yes.
I was in heavy traffic so I was not able to do much with modes or settings but so far I am very favorably impressed. I still think GM should have offered this free, but is the $350 plus tax worth it? - I say yes.
Thanks!
02-15-2018, 09:15 AM
#23
E-Ray, 3LZ, ZER, LIFT
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Might "allow them" to change my oil at the same time as it's 20% from being required! That would be the first time I didn't do my own oil change in all 5 Vettes!
Last edited by JerryU; 02-15-2018 at 09:30 AM.
02-15-2018, 09:22 AM
#24
E-Ray, 3LZ, ZER, LIFT
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I picked up my 2017 GS coupe yesterday afternoon after the upgrade and sitting for 8 hours. The ride controls had defaulted to Touring mode, which in the past caused the steering to be overly sensitive. The steering response in Touring mode on ride home was MUCH BETTER - more solid and very similar to the previous Sport setting steering. The road surface on the way home was on the Interstate that was concrete with expansion joints with some different surface finishing. The ride was MUCH IMPROVED with no harsh jarring as before the "upgrade".
I was in heavy traffic so I was not able to do much with modes or settings but so far I am very favorably impressed. I still think GM should have offered this free, but is the $350 plus tax worth it? - I say yes.
I was in heavy traffic so I was not able to do much with modes or settings but so far I am very favorably impressed. I still think GM should have offered this free, but is the $350 plus tax worth it? - I say yes.
Will be interesting as now I drive in Touring, which IMO is not much different than my 2014 Z51 was without MRC. Sport is currently definitely "stiffer" than the 2014. Perhaps riding in Sport will OK. Prefer, if possible for the "nannie," etc settings.
Last edited by JerryU; 02-15-2018 at 09:36 AM.
02-15-2018, 09:28 AM
#25
I had my 2017 GS w/FE6 done last Friday. At first, the Service Advisor tried to tell me the upgrade wasn't available yet and that he was looking at a bulletin that was just over a week old to that effect. I asked him to talk to the Parts guy I'd talked into calling the Techline to confirm. The SA called me back to confirm that the upgrade was available and make the appt.
The upgrade is well worth it.
Part Number: Code: SPGMISCACT, Description: SPG GL ACT. I'm not sure if this is correct, because it doesn't look anything like the part numbers in the bulletin.
Last edited by wiiltn; 02-15-2018 at 09:32 AM. Reason: add part number
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02-15-2018, 09:31 AM
#26
Instructor
I heard that too. My dealer told me the end of March. I have a 2017 GS with FE6 suspension. If someone is in my shoes and already has the update, please let me know. Thanks.
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Comebackid (02-15-2018)
02-15-2018, 01:30 PM
#29
16 Vettes and counting…..
I had my 2017 GS w/FE6 done last Friday. At first, the Service Advisor tried to tell me the upgrade wasn't available yet and that he was looking at a bulletin that was just over a week old to that effect. I asked him to talk to the Parts guy I'd talked into calling the Techline to confirm. The SA called me back to confirm that the upgrade was available and make the appt.
The upgrade is well worth it.
Part Number: Code: SPGMISCACT, Description: SPG GL ACT. I'm not sure if this is correct, because it doesn't look anything like the part numbers in the bulletin.
The upgrade is well worth it.
Part Number: Code: SPGMISCACT, Description: SPG GL ACT. I'm not sure if this is correct, because it doesn't look anything like the part numbers in the bulletin.
02-15-2018, 01:40 PM
#30
Instructor
I just sent the dealer this info. They called the techline. Bingo! Appointment moved from last week of March to this Tuesday!
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Co-Vette (02-15-2018)
02-15-2018, 07:03 PM
#32
16 Vettes and counting…..
Dealer allegedly installed it today. I say allegedly because it felt no different on the ride home, however the invoice does say it may need a full cold to hot cycle to take effect. I guess I'll find out tomorrow.
02-15-2018, 10:36 PM
#33
Can anyone confirm this is an upgrade for track use on a z07 grand sport ?
What's a hot cold cycle?
What's a hot cold cycle?
02-16-2018, 01:09 AM
#34
Yeah in the service bulletin it says it changes calibration in tour and sport mode, but what about track mode ?
This is were probably the DSC controller has the edge...I'm hesitating between this upgrade and a DSC controller....
Seems the DSC controller upgrades all driving modes
This is were probably the DSC controller has the edge...I'm hesitating between this upgrade and a DSC controller....
Seems the DSC controller upgrades all driving modes
02-16-2018, 08:20 AM
#35
Yeah in the service bulletin it says it changes calibration in tour and sport mode, but what about track mode ?
This is were probably the DSC controller has the edge...I'm hesitating between this upgrade and a DSC controller....
Seems the DSC controller upgrades all driving modes
This is were probably the DSC controller has the edge...I'm hesitating between this upgrade and a DSC controller....
Seems the DSC controller upgrades all driving modes
While I was waiting for my 2017 GS upgrade, the service advisor and service tech, with laptop balanced on forearm, came to ask me if I wanted the track upgrade. I wasn't aware that there was a separate upgrade but said sure. A couple of minutes later the tech came back and said the track upgrade was only available for the Z07 package.
02-16-2018, 09:24 AM
#36
While I was waiting for my 2017 GS upgrade, the service advisor and service tech, with laptop balanced on forearm, came to ask me if I wanted the track upgrade. I wasn't aware that there was a separate upgrade but said sure. A couple of minutes later the tech came back and said the track upgrade was only available for the Z07 package.
02-16-2018, 01:36 PM
#37
16 Vettes and counting…..
02-16-2018, 05:14 PM
#38
16 Vettes and counting…..
I drove the car this morning after it sat overnight and I hit the same road imperfections I usually do on daily basis. The car felt exactly the same as before, however once it warmed up to full temperature, I could literally feel the new calibration kick in.....an amazing improvement.
In tour, the car now feels very much like my Mercedes SL550 did in sport mode which, to me, was the best combination of comfortable ride and excellent handling I've ever had.....but without the extra 800 pounds of weight of the fat Mercedes. Sport mode now feels like the old touring mode, but the tires seem to keep better contact with the road...less chatter. The structure of the car does feel more solid, a result of the softer tuning I assume.
Overall, money well spent. Once I get rid of the run flats, I'm sure it will be even better, although I'm completely happy with it now.
In tour, the car now feels very much like my Mercedes SL550 did in sport mode which, to me, was the best combination of comfortable ride and excellent handling I've ever had.....but without the extra 800 pounds of weight of the fat Mercedes. Sport mode now feels like the old touring mode, but the tires seem to keep better contact with the road...less chatter. The structure of the car does feel more solid, a result of the softer tuning I assume.
Overall, money well spent. Once I get rid of the run flats, I'm sure it will be even better, although I'm completely happy with it now.
02-16-2018, 05:33 PM
#39
Burning Brakes
I had a 2016 base stingray without mag ride and liked the ride. Now have a 2017 GS with mag ride. Not sure if anyone has had both and could tell me if the new update on my GS will ride comparable to the base 16 W/O mag ride. I know it is a long shot but ..... I would jump at on it if I thought it would make the ride softer and less harsh. Thanks
02-16-2018, 05:55 PM
#40
Tech Contributor
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