Foosh

If the GS shares the same suspension w/ Z06 (FE6 and FE7), then why wouldn't the Z06 reflash be listed for the GS?

I could have sworn the GS shared the FE4 w/ the Z51, or at least that there were suspension differences between GS and Z, due to Z06 heavier weight. If not, my bad.

It's interesting that the DSC controller uses the same firmware/software for FE2, FE4, FE6, and FE7 MSRC shocks, regardless of the other suspension differences, and it works very well for them all. Virtually everyone who has installed one, regardless of model, has reported the substantial improvement over OEM.

By my way of thinking, that seems to make sense. Even if there are some differences in MSRC shocks between suspension RPO codes, they all work according to the same principle, which is changing the viscosity of the fluid in the shock according to what the car is doing, and the laws of physics. Thus, the same settings would seemingly work equally well on all models.

LT1 Z51

Just because the suspension RPO is the same, doesn't mean the controller calibration is the same. Grand Sports and Z06s more than likely have different calibrations (which are again unique versus the Z51).

GM can calibrate based on any number of factors. I think the suspension hardware is identical to the Z06 not the Z51 because of the springs and sway bars (which I think are the parts actually tied to those RPOs) and those are driven by the body width.

Foosh

Yeah, I suppose that makes sense, but it's odd that DSC uses the same calibrations for all MSRC models with great results.

LT1 Z51

Part of GM differing tunes is because customers expect things to feel different. It's proliferation for proliferations sake. I would expect each one to be about 80% the same tuning (if you go across all the modes). In touring, most of them could well be identical.

Foosh

Yeah, calling them different even though they aren't is what I'd expect. Certainly the different models feel different, but that's a function of tires, springs, sway bars, and not likely noticeable differences in MSRC shock calibration across models. In the announcement above, they list essentially the same benefits for all the calibrations.

Dif

IMO, the GM controller being Reactive, needs different tuning specifically for different suspensions to get their desired results.
With the DSC controller being Predictive (correct word ? ) it can work seamlessly with different suspensions, compared to the GM controller.

Foosh

Good point!

lobsterroboto

I got excited and then I didn't.

No track mode update for Z51...that's just disappointing.

Italianfox

i am a MacMulkin customer...my 2016 Stingray. So when I book this is service on board for the free upgrade or will i need to refer them to this post? You are the best dealer I have ever done business with BTW. Kenny and Mark have always treated me like i own the place.

eboggs_jkvl

I must be having a reading comprehension lapse... It says FREE to the car owner. The dealer charges $350 via a special code to GM but the car owners DO NOT PAY.


Elmer

LT4CMG

I'm only subscribing to see where this "free" conversation goes, don't mind me

bgood

I stopped by my local dealer last week and they called the GM Techline about it. The I was informed by the dealer that calibration update is $350 and the labor(installation) is free.

In addition it is highly recommended to let the car remain unmoved for 8-9 hours after the update is performed in order for the damper temperatures to stabilize and to allow for the calibration to obtain the optimal configuration.

Jaykoh-Z51

Blwnc6

Jaykoh-Z51

so...if you have to pay the $350 to GM, I think I would pony up a few more bucks and just purchase the DSC controller.

charles7970

I’m curious if your car is tuned, will this upgrade over write what was done by the programmer?

LT1 Z51

No. The MSRC is a different module than your PCM. The car has 20-30 modules (I posted them all in another thread). Each one has its own software and calibration.

charles7970

Awesome thanks for the reply

eboggs_jkvl

I will not pay for this update. GM can keep it and put it where the sun doesn't shine.


Elmer

Foosh

That sounds like complete nonsense. Waiting for "damper temperatures" to stabilize . . . . allowing the calibration to "obtain optimal configuration?" How is the latter supposed to happen with no power in the system. I'm not being critical of you, because I'm pretty sure someone told you that.

Those of us w/ DSC controllers, which is a far more dramatic change, plug the new module and drive away in 10-15 minutes per DSC guidance. You immediately feel the huge difference within a city block.