911.

I am sure its much easier said than done. It's why I said give them a call and tell them what you want to do. They may even tell you straight up if they over came the same issues the Cobb tune has. Outside of your time, and maybe your location and APR dealers near you, I dont think its that much work to find out. But thats me and I have 2 dealers within 20 minutes to me Hahah!

In regards to compatibility, it would be fine, if you load APR and then find it not for you, you will be back on the latest stock file.

The process would be Cobb >stock>APR>stock>cobb.

PTS-BRG

The Cobb Handheld AP is married to the car. Once you unmarry it from the car, I am unclear how easy or difficult it would be to once again marry it back to the car.
It is a process.. perhaps an easy one and perhaps a difficult one. I just dont want to be the first guy to do it. Let someone else do it and write an FAQ for us all..

911.

Gotcha! While I was quoting you, I meant it in general to anyone else thats running into this bump in the road.

I've been running the APR tune and dont have any complaints to be honest. I am patiently waiting for their "at home" solution and possibly a GTS upgrade package they seem to be working on also.

M Engineering

Working on this now. We are close with Nabils car.

Will send a file to him today and we will keep testing it till we sort it out, and then we will update anyone else that we have tuned if they have the issue.

Mitch

arter

Once you unmarry it, it could re-married just as easy as it was the first time.

fsmich

Crank hp is more. APR shows 615whp = 648 crank hp/594tq. This is a level beyond any Cobb pro-tunes I've seen.
Tyler at APR said he did experience the flutter at this level on the E85/104 calibration and fixed it before the release.

PTS-BRG

I'm not here to start a flame war or throw stones at anyone, but I dont believe any of the dyno numbers provided by anyone. I need to see independent dyno numbers from real world users to validate anything.
If APR has the ability to get better numbers, then lets get a member here to validate it. I will even chip in for some dyno testing money to help them out.
But, I dont believe for a second that APR'S protune is any better than COBBS. Maybe APR made their OTS MAP more aggressive than COBB did and thats a personal decision, but once you open it up and get a protune, I dont believe APR is going to provide any better numbers than COBB.

Cobb had a monster OTS MAP when they first came out but the shift issue popped up and they couldn't figure it out so they dialed it back.
Not enough people on here with APR tunes to be able to validate anything I am afraid.

911.

the ~600 I was referring to the crank tq since the issues appear to be coming from that number getting to the 620 tq figure limit.

Their base tuned cars that have posted up dyno/draggy results are at the claimed APR levels. In time we'll get more GTS and Base/S with GTS turbos posting up dynos!

Nabil_3.0

Like Mitch said i'll be testing the latest file here shortly will give him more feedback and logs to look at. will also update the forum on Shift status and ill draggy the car for ****s and giggles.
Sucks i have not dynoed my car due to not having access to a PWIS3. I'm confident my car makes well into the 500HP and 600 plus TRQ.

polobai

You dont need PWIS to dyno your car. Take it to any 2wd or 4wd dyno and turn off traction control and let her rip. I have done thins many times in my manual car-should make no difference with PDK.

Nabil_3.0

Not sure if this makes a difference but my car is a 991.2 and many tuners have told me you need Pwis or it will not work

PTS-BRG

You need an All Wheel Drive Dyno, which isnt what most shops have, but as far as I know there is no reason to use a PWIS for any reason regarding tuning.

polobai

Mine is a 991.2 also. I have over 10 dyno runs on a 2wd dyno with no issues. Check it out-I had the same concerns as well and just gave it a shot with no ill effects:
https://rennlist.com/forums/991/1134...ts-inside.html

Now I dont know if PDK will make a difference or not, but I we wont know until someone gives it a shot!

PTS-BRG

Nabil: The reason people are telling you that you need a PIWIS to dyno is because the shops you are using do not have all wheel drive dynos.
Polobai dyno tested his car on a 2 wheel drive dyno. I am not certain if he put the car in dyno mode ( 2 wheels only) or dyno'ed it without dyno mode.
If he tested an AWD car on a 2 wheel drive dyno without putting it into dyno mode then I would suspect the numbers would all be inaccurate and off.
You DO need a PIWIS to dyno if the dyno isnt an AWD dyno. I think thats the confusion here..

polobai

No dyno mode here-I dyno'd on a 2wd dyno and just turned the traction control off (hold down button for 4 seconds or so). No PWIS used, etc. Again, my car is manual so not sure if it will be the same on PDK.