The original question is here.

 

I really appreciate the detailed response and I do also appreciate the effort it takes to release something on a past model while working on future ones.

I am particularly interested in 2015 Z51 Track Mode updates and judging from this: "A new Z51 track calibration is on my “things to do” list, but my “task at hand” list is much longer." I probably should not hold my breath until it comes out.

thanks

bill

 

Exceptionally good response, I really appreciate the effort on this one and look forward to the update to the 2017 GS.

 

Yea one more question that arises is if a Z51 owner purchases the touring/sport calibration package now would there be an additional purchase required for the future track release or would that be provided free of charge?

 

That is the type of answer that makes this section so valuable. Big thanks to Tadge and Jim for taking the time to respond!

Now what about these lower control arms with stiffer bushings, that's the first I've heard of that. Anyone know the part number?

BTW, this was me reading the reply

 

Great questiona nd response. Thanks Car54, Jim, and Tadge.

 

This is one of the best responses yet. I do not have MRC and I thoroughly enjoyed the question and answer provided. Even moreso though, I got giddy just knowing that Mero and team read the forum to some capacity and even see the Ask Tadge poll. To me that is the sign of a manufacturer and team that loves what they do so much that they actually get engaged at a personal level.

I already had a lot of respect for GM and the Corvette brand before this, but now I have even more. Thank you Corvette team for solidifying that I made the right decision choosing to drive a Vette.

Ant

 

Very interesting and informative. Thanks.

 

How long does it take to download the new software, in general? Is it a pretty quick, while you wait process?

 

That's a great response along with detailed information from the source. Can't ask for a better response. Well done.. [looks around and starts slow clap]

 

As a owner of a C7Z Z07 2015 and a decent driver, do you think i will actually feel the difference? Without pushing her to the limit? Which i want to! But im no fool, i dont have the capabilities of pushing the bloody potential of my Z06! So thats why i wonder if its gonna worth it for me!

 

Great response from Jim - thanks very much!

I just had the calibration done a couple of days ago on my 2016 Z06 w/ Z07. It took the dealer literally hours working back & forth with GM to finally figure out how to do it and how to bill it.

Contrary to what some people "in the know" wrote in other threads, it definitely costs $350 that the customer pays, and the installation costs are the part that the dealer charges back to GM through an operations code. SO IT WILL COST YOU $350.

The biggest change I noticed was Tour mode. Before the update I really hated going into Tour mode because the car was tremendously "floaty". (It was nothing like that in my old 2014 Stingray Z51 -- this was something new with the Z06 w/ Z07.) It was like the rear end was on springs. After the update it was like night & day, with the car reacting to bumps like I would expect it to, and the floaty feeling completely eliminated.

The other thing I noticed in Tour after the update was that the steering seemed much more sensitive -- in fact, too much so for my taste. So I changed the option to always use Sport mode steering.

So it's an interesting driving experience. A more compliant and predictable drive, while I can still very much feel the road.

Unfortunately it's winter here in the Northeast, so I won't get much driving time until the Spring to really explore the update. Cup 2 tires in the cold is not a good combination for pushing things. I am looking forward to opening up in Sport and Track modes to feel the extent of the changes.

However, what I've experienced so far makes the purchase entirely worthy. I would absolutely recommend dropping the $350 for the upgrade.

 

[QUOTE=Poor-sha;1596233147]That is the type of answer that makes this section so valuable. Big thanks to Tadge and Jim for taking the time to respond!

Now what about these lower control arms with stiffer bushings, that's the first I've heard of that. Anyone know the part number?


THIS

 

Well done on the explanation as well as the decision to roll this out for customers. It gives the customers from previous C7 years the choice to purchase this enhancement, which allows them to benefit from R&D that occurred after they purchased.

It inspires trust in the brand.

Thanks,
Bill

 

Thanks Tadge and Jim. And thanks to GM for allowing these excellent explanations to forum questions!

When the update is available for my 2017 Grand Sport, will purchase. Worked with the Petty Team years ago (as a sponsor) and understood how complicated is was to adjust mechanical shocks to balance the compromise needed for each track, specific bumps and how the driver was a key element.

From what you said and the fact that I enjoyed driving my modified Corvair guess I won’t mess with the stabilizer bushing if it currently has a slight oversteer! Sure doesn’t feel it, but my limit is reached in tight turns as I don’t Track.

PS: As you noted, it is driver dependent. Even in oval racing with the same conditions some drivers wanted some understeer, some oversteer. Or in NASCAR terminology, more Tight or Loose. That was changed during pit stops with a rear spring adjustment by turning a lead screw on it’s mount. Driver might say give me one more turn, which they may do, but if the crew chief thought it wasn’t needed, i.e. track was changing or it was really a tire that they were changing etc, they might tell him they did and really didn’t! Even if they didn’t make an actual adjustment and there was no tire change just a fuel stop, when he got up to speed he’d say “that’s better!”

The first few years of our sponsorship, Richard was driving. When he asked they did it!

 

Made for a great Christmas laugh..Thanks!

 

I have a 2017 Z06 so I assume I will need to get this completed if I want all the features. The bulletin number would be great when it comes out as my dealer doesn't seem to know about changes unless I give them the bulletin number and confirm that they get it right.

I'll keep my eyes peeled for it. Thanks for posting this information and why I love this forum.

 

Thanks for the detailed explanation, but there are still unanswered questions with regard to the '18s, given the pre- and post-plant shutdown production cycle of the '18 MY.

I take it the final 21 MRSC calibrations were not quite ready when '18 production started, but you say those final tweaks were completed in September 2017 after plant shutdown. Then I read 18's got some, but not all of the improvements. However, 18's are still being produced until the end of Jan, and one week later, '19 production will start.

So, my question is would a 2018 Z51, which has not been built yet (e.g. mine w/ a 1/15/18 TPW) or one that was built after the plant re-opened in November 2017 (and after '19 MY calibrations were completed 2 months earlier), come with the very latest MSRC calibrations, with no need for the $350 update?

If not, why not?

 

Did anyone else realize Jim said the Z with the new Calibration did a 2:39 @ VIR? Does that not beat the now discontinued Viper’s time?

 

Does the $350 MRC update have any effect on safety, which is Stabilitrak (AKA “active handling”), and, ABS? The write-up only seems to mention handling, ride quality, and, driver confidence.

I’d just like to know if my 16 Z06 (when all safety systems are on) is just as safe w/o the update.