Clubber

I have just installed the DSC V3 with the new RS calibration on my 991.1 C4 GTS and WOW !

I am usually very picky when it comes to mods and always find something that is underperforming vs the hype but not on the case of DSC.

Based on @Tom@TPC Racing recommendation, because I had new Eibach springs put on the car, I waited a few days until they settle in and then I zeroed the ride height before the first drive.

And the first drive ;

Normal Suspension Mode : In my case, comfort was the reason I went for the DSC so even if the Sport suspension wouldn't change, I would still be happy with a more comfortable normal mode.
To describe the difference shortly, the way DSC absorbs the rough and bumpy roads is similar to the feel of dropping wheel size by 2". So, my 20" GTS wheels felt like 18" running on fat rubber/sidewall. Very refined and smooth.
I did my first drive on my most frequently used road to make a better comparison and the ride comfort is significantly better without being floaty (numb, disconnected), especially on plastic speed bumps which used to be my biggest torture.
During the fast driving in normal mode, turn in felt much more alive and I instantly felt more grip on all corners. One might argue that you don't need a Sport suspension mode, but then...

The Sport Suspension Mode : I can finally say that my car NOW has two suspension modes as the stock spor mode was simply undriveable. It was way too stiff and bumpy even on track and highway. With DSC, Sport mode finally makes sense. Somehow turn in gets super sharp, suspension tight but not bumpy at all. Best of both worlds. Although I need a bit more spirited driving miles to give the full evaluation.

Overall, as anyone else said before, DSC is a game changer on PASM cars, If you are hesitant, don't be. Go for it.

Thanks @Tom@TPC Racing for all your help.

cutlass476

Hey Tom...when are you going to put the RS calibration file on your website so we can download it. I'm running the GT3 file from 2020 right now. Would really like to take advantage of this new file that you guys are raving about. My DSC is new enough, I just need the file. Please.

bchamber1

Considering but wondering if anyone has with solid front LCA ball joints? I have '13 991.1 C2S and installed Tarett cup LCA's so solid outer ball joint, monoball inner, and thrust arm bushings. I know will always have some NVH but curious if anyone has similar setup and softens out the ride for normal driving?

I don't doubt the track performance benefits though I'm sure I have a lot left to get out of my current setup before I need more performance mods to shave tenths off so more interested in public street improvements with softer setting. That would be ideal as can really use Sport setting for track...

Tangerine

Also interested. Did I miss any updates? Original estimate was to post it within 30 days.

Sulzy

The file was uploaded on saturday - and can also confirm that in the Carrera t it's a massive improvement over the prior leading "gt3 touring" file. Considerably more stable, responsive and communicative in both modes.

sixpins

I have a DSC V3 (firmware code: Ver 991_2 2.0 V3 1-26-21 enc Velocity Lnc & EXH2 pch2 ) for my 991.2 with PDK and sport chrono. It came preloaded with the GT3 Touring file but I would like to swap that for the new RS file.

When writing the RS file to the DSC does it matter which Vehicle Type I have selected?

I assume I want to choose "Porsche 9x1 w/LNC" rather than just "Porsche 9x1". Hoping someone can confirm this for me, thanks!

RP4S911

Reviving this thread.

I have a question, and sorry If my specific numbers are off, I’m going off of memory and potentially bad info.

So “normal” mode is PASM button off, and “sport” is with it on I’m assuming. From what I’ve read the Normal mode ranges from 3%-80% of firmness level depended on driving (in real time) and Sport mode is around 20%-100% firmness variation?

If so, then is it correct to say we can just keep it in normal mode to take advantage of the softer slow ride and it will automatically assume the Sport role with a heavy spirited drive? Or does the Sport mode make the dynamics truely more aggressive in general with the addition of not going below that 20/30% firmness level?

Any specific #’s would be great! TIA
-Rick

Wujohn

If memory serves, you are correct here. Normal mode just gives you a wider range but worth checking to see if the max is different (I am not sure). You can use their software to look at and change the settings as you see fit. Depending on the profile you load, that determines the range.

yosshaa

Does this void CPO? Like if I need to take the car in for service like an oil change, should I swap the OEM DSC back in or would they not know unless they looked at the unit itself? If I swap to OEM is there any way a dealer could tell DSC V3 was installed?

LWG

Takes only a few mins to take in and out. If you are concerned just remove it prior to service. Wont be an issue though unless of course they are trying to diagnose suspension faults / issues.

dannyss

I've talked to the service manager at my dealer and he told me that it made no difference for them. The DSC was fine being in the car while servicing.

desmotesta

for what its worth, my dealer was unable to recalibrate or service PDCC with DSC installed. Their computer couldnt communicate with PDCC and OEM controller needed to be installed.

FYI

RP4S911

Just put the rear seat down and swap the modules before going in for servicing anything suspension related, if you're worried. Took me 2 minutes my first try, and the longest part was figuing out how to pull up the carpet cover the very first time. Much faster the 2nd time going in there. Nothing else to do at all, just pug and play. For anything not directly related to diagnosing the PASM/suspension, don't even bother. Aftermarket exhaust doesn't affect CPO warranty either, unless they need it back to stock in order to diagnose a related component.

Sulzy

Not likely, cpo is only under question if it's something you can't revert to stock and the struts aren't under warranty anyway. you 100% won't pass a real 300 point check to re-enter warranty with it in, but swapping back and forth doesn't persist anything the dealer can't clear and move on. The condition for pass in piwis is "whether the errors can be cleared" (well, and whether Stuttgart has a red flag on your model, but that's a different issue)

Yes, second this. piwis throws a comms error with DSC installed that won't clear until the oem box is back in.

It's not a lot of effort to do, and the dealer has their hands tied with unclearable errors if there are any syncs needed for warranty checks etc.

Tom@TPC Racing

^ Correct. Any diagnostic scan tool that's designed to read the OEM controller(such as Pwis, Durametric, iCar, etc.) will not read the DSC controller because of different computer language. Attempting to read the DSC controller with OEM scan tool will show "device offline" or "no comm" because the scan tool is looking for the OEM controller that isn't there. Same situation as attempting to read the PCM with OEM scan tool if the radio head unit was replaced with an aftermarket one.

DSC uses its own communication software that's a free download from DSC website.