My concern would be to do a module enumeration and make a list of the various different modules that could have different calibrations.

Which CAN module does the calcs for the eDiff? What about MR? Launch squat detection? All of these things (and many more) could vary between a Z06 and a Z07 car.

Now it's not like you're adding a feature that wasn't there, so the eDiff isn't going to "Crash". But the calibrations may be off in many different modules, and I don't think any of us, short of maybe people like HPTuners, have a firm grasp on even what modules are IN the car, let alone which ones need to change.

If I had a Helm manual I'd sit down with Vehicle Spy 3 and start at it, but I'm waiting for manuals before I start dorking with my car.

 

This isn't so much about converting an FE6 to an FE7 car any more. This is an ECU that gets tied into the CAN bus and a new set of dampers.

The ECU comes with software that allows the dampers to be programmed based upon the incoming parameters across the CAN bus, primarily the accelerometer and speed.

As soon as you change the tires, the refined e-diff settings go out the window. I might be in the minority here, but I'm not overly concerned about the diff here.

The DSC module precisely controls the damping on all four shocks independently.

In the Porsche world (where the OEM shocks have a greater range), they can swap in the DSC box and notice a big difference - then if people want even more, they upgrade the dampers.

In the Corvette world, while we might think the MR dampers are high end, I've always felt that they were pretty lacking. At some point, everything comes down to a budget and they are suitable for a very wide range of customers.

The DSC box dramatically increases the responsiveness and precision of the commanded damping levels, and the Tractive DDA dampers have a much wider range than the factory, allowing a much softer, or much firmer shock based upon the commanded level.

Another way to look at it, as you're going around a left hand corner, the DSC Sport package will stiffen the right side dampers as the car begins to load up, and simultaneously soften the left side (so that hitting the curbing doesn't upset the car). The amount it stiffens is based upon speed and G-Force.

When the car gets on the straight, the shocks ease up and allow it to float a bit more. When you start to get on the brakes, the front will get tighter and hold the car up.

I believe there is a small amount of dynamic range in the factory MR shocks, but it's not very noticeable and to me, the car needs suspension work.

One thing to add here is that they just added this same setup (different valving and such) to a Gen 5 Viper TA and it ran 3 seconds faster around NCM than a Gen 5 Viper ACR - same driver. I believe this was a 5-6 second swing.

For those interested, read up on Rennlist and Viper Exchange.

 

We will try. The question is on ask Tadge now and hopefully it will get through for voting.

https://www.corvetteforum.com/forums...ndard-z06.html

 

Thanks Ali, I think I know what Tadge will say but let's see if it gets enough votes.

I spoke to the Chief Suspension Engineer about this last Summer and he was pretty clear this was something GM had no interest in supporting because of the way the calibrations in the PTM and eDiff were tuned to the FE7 suspension.

I thought it was pretty ridiculous that GM wouldn't support this but at this point I think the DSC shocks and controller are likely a better route anyway.

 

I agree on both accounts. First, it seems the release of the T1 suspension package means that the liability concerns should go out the window - simply offer it as 'off road only'. As far as trusting a dealer to load the correct calibrations - I'm in the software industry and it seems quite trivial. Plus we trust the techs to do many things that are significantly more complicated.

On your second point, I couldn't agree more. I have a lot of faith that the DSC/Tractive equipment will significantly outperform the stock FE6 or FE7 suspension.

 

I agree. They have the programs/ calibrations available and they can offer it for purchase to anyone that is buying the FE7 hardware unless there is something that we don't know. Maybe Tadge can answer that.

There is a good number of fast Z06 guys that either don't have Z07 package and/ or not interested in the full package but still prefer a stiffer suspension. DSC shock sounds promising but it sounds like it will be expensive in comparison to FE7 conversion. I am sure I will not be breaking any track records but it does help to have slightly stiffer suspension.

 

Im watching this topic closely. After cording 2 left front tires because the fender well rubs the inside of the tire in a hard fast right hand turn.

 

I know your car is under compression here, but is your car still at stock ride height or have you lowered it any?

 

Completely stock height.

 

Thanks, It would be interesting to see how the Z07 springs would do on your car. Maybe someone will give it a try, I noticed a picture Snorman posted of his under heavy braking and he noted he had not lowered his car either.

 

The question is up for voting on ask Tadge

 

If I can be of any help here, I just purchased an Autel Pro scanner for my business. I bought it home today to see how good it was for my '15 Z07, our Tech 2 scanner ended in 2013. We have been doing GM programming for years with the Tech 2, this scanner is new to us but I am going to try programming with it soon. Here are some pictures I took of the various modules in the car. I can go to any module and get calibration numbers for any of the modules and much more.

 

Do you know if there's a convertible top module, or is that done by the body module?

I'd also like to make something that would send the "Valet Mode Camera On" PID broadcast every time he car was put into D, but then I'd need to know the module and PID. I can likely sniff all that out with Vehicle Spy, but if you've got any info that might kickstart it, let me know!

I would guess Module 23 does the camera?

 

Yes it does it try's to come up as number 21 during the module scanning, but since my car is a coupe it goes away.
Very little info in the Vehicle Performance Data Recorder, other than trouble codes, calibration part numbers etc.
Short video showing the Folding Top Control Module.

 

Not sure if anybody has tried this or if it would even work, I have programmed in vin numbers in some modules on GM cars when installing a used module using GM's TIS 2 Web.
As mentioned above I am not sure how many modules have different calibrations in them that are different from the FE6 to FE7 suspension.
I am thinking possibly the Chassis Control, Rear Differential Clutch Control, Electronic Brake Control, and the Suspension Control Modules have different calibrations. I could pull and document all of these calibrations out of my Z07 car. There is only one other Z06 in my town that I know of but it is also a Z07 car. If anybody here that has a Z06 with the FE6 could also have there calibrations documented that would be a starting point.

 

Have you or any one heard of any one making progress on having a re flash done on a z06 to upgrade it to the Z07 (FE7) and getting running the correct code to manage the Z07 shocks?
Thanks in advance!

 

No but the DSC shocks and suspension control module are a significant upgrade over FE7 and come in at a similar price.

 

there is another thread where someone says he got his dealer to flash the FE7 settings. But it hasn't been confirmed to work yet.

 

I have been following that thread and posted several times but the guy has not yet confirmed. I also PM'ed him twice with no response.


I actually met with my Dealer/service guy yesterday and he claims when the car gets flashed it is VIN specific and he can NOT load in the FE7 settings.


I have been checking at the DSC site and the controller for the C7 is still not available for sale.


I am currently running FE7 springs which for me has been a huge improvement IMO. Much less body roll and lean during braking. I am running P-Zero racing slicks and an LG sway bar.


Going to Sebring in December with Chin and am a little worried about that rough track with the car now being much stiffer, but I will soon see. All I do know is we run at Barber Motorsports track often and that track is very twisty and the car handles much, much better.


I am thinking of calling a few other dealers that sell GM performance upgrades (including the FE7 rough track flash) and see if I get any different answer.