MGR upgrade
Thread Starter
Advanced
Joined: Sep 2002
Posts: 64
Likes: 5
From: Mandeville LA
MGR upgrade
Just had the upgrade done and I am very happy with the results. Tour mode no longer has that rear end sway in it and the other modes are much more responsive and solid feeling. Really glad I did it. Cost $350 and the labor was picked up by GM.
Racer
Joined: Sep 2012
Posts: 342
Likes: 52
What rear end sway? And did you let it sit 8 hours before driving it (as mentioned in the GM PDF)? My upgrade is scheduled.
Instructor
Joined: Sep 2014
Posts: 156
Likes: 34
From: Los Angeles California
Check the recent Ask Tadge post about the new Calibrations.
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Drifting
Joined: Dec 2009
Posts: 1,867
Likes: 219
From: Atlanta GA
2018 C7 of Year Finalist
I want to do the update but not sure if I'll really tell a $350 difference. I only drive in sport mode. Even on my 20 mile commutes to work.
Thread Starter
Advanced
Joined: Sep 2002
Posts: 64
Likes: 5
From: Mandeville LA
When driving in tour mode and hitting rough road the rear tends to move more than I would like. Car does not do that in sport or race mode. It doesn’t do it any more and yes the dealer said that the gm instructions were to let the car sit for 6 to 8 hours after the upgrade so they wanted to do it that way. Seemed harmless enough.
Racer
Joined: Oct 2006
Posts: 481
Likes: 26
From: Edmond Oklahoma
Im going to get it done. C7 z07 is a little rougher than stock so i wouldnt mind to make the ride a little more smoother. I currently always drive it in tour since sport is a little to rough so being able to click in sport more often would be nice.
Pro
Joined: Sep 2006
Posts: 655
Likes: 114
From: Orange County, Southern California
Team Owner
Joined: Sep 2000
Posts: 25,032
Likes: 2,720
From: Far NW 'burbs of Chicago
St. Jude Donor '13
I'm still trying to figure out what Temperature Compensation is and what it does...
Safety Car
Joined: Mar 2009
Posts: 4,101
Likes: 719
From: Northeast MA & Mad Beach FL
Reason being, the shock fluid viscosity changes as the temperature changes and in turn changes how the shocks react.
Once the controller has established the zero point, it compensates for temperature changes to the fluid viscosity to keep the shocks reacting the same during those changes.
