user1029

I will sound like an ******* but I want you to convince me not to purchase this (which has monitoring, code reading, ECU-resetting, plugs right into OBD2, and flashing capability in a handheld device and easily accessible for the protuners)


and it's made in 'murica

s2ktaxi

Rhonda -
if the rev limit is moved to 7900 rpm, will the DME report overrevs if above 7800?

will this have the same max power if used on the 981 Spyder that's supposed to have 10 lower hp than a GT4?

Jimmy-D

^ I thought you can only over-rev on a downshift but while accelerating the car will go limp/fuel shut off past red line.

In my 997.2 Turbo if you hit red line I remember it would limp for a second to protect the engine.

I could be wrong it has been over 5 years

GAZZ

So let me understand. A Cobb Access Port requires a new ECU swap but this system does not?

Bardman

Neither require a new ECU swap, and neither will cause km/mile mismatch.

They work by accessing your ECU data through the OBD port.

The process is normally the following sequence of steps:

1. They ship you the device
2. You plug it into your OBD port to id your ECU/VIN and extract the stock tune
3. You email the stock tune file to them and tell them what mods you have
4. They update your tune file with different parameters based on the mods you have on the car
5. They email you back the updated tune which you then load onto the device
6. You plug the device into your OBD port and apply the tune
7. Normally the stock tune is also still available on the device so you can swap backwards and forwards between them
8. "Nice" tuners will give you updated tunes if you change your car mods or they develop a "better" tune

So you keep your original ECU, and any stats it has logged, but it has slightly updated operating parameters.

The device OP has provided screenshots for is a Mygenius device which is made in Italy. Its relatively simple to use but has some "quirky" Italian traits.

DrPhil Gandini

You mean it drinks and womanizes? What particular Italian traits does it display?

GAZZ

Thanks for the reply.
I've not been following all the ECU threads resently. Last I heard the Encryption in the ECU prevented a reflash via ODB.
The method mentioned above is the same method as other vendors were using on the 987.2 before it got locked down on the 981 series.

Reflash on the 987 was super simple and did not cause any effors due to the simple can bus system. The 987.2 is another story, as it causes a lot of implausable errors and error codes. Some cars were much worse than others to clear codes, esp different country build configs.
The FVD reflashing procedure video did not look any more complicated, which is good.

Looking forward to reading and learning more about this now.

Jimmy-D

Really looking for your feedback and ease to install. All eyes watching

One thing of certain; it looks like Porsche left a lot on the table in the GT4. This is going to be a fun ride w/ mods ect.

ShakeNBake

It seems to register an aggressive throttle blip, as well as bouncing off the limiter as over-revs. I've already got level 2 and 3 overrevs, and I've never money shifted the car. My RS was not as sensitive.

user1029

You, I like you

EGOKLR

You don't have to email your stock file to COBB. You simply plug in the Accessport to your OBDII port and the Accessport will automatically save your stock file. From there you can select from one of the already pre-loaded performance maps (tunes) that are on the Accessport or you can always have one of the Protuners make you a custom map that you can load on to the Accessport and use.

golfnutintib

^^^^ this has also been my experience using the cobb handheld device on my bimmer e92 turbo cars... it is very easy and the stock tune is saved on the memory of the cobb device

whether on 981 p-cars it remains this simple is unclear to me... as mentioned earlier, each round of new cars has new efforts by the oem car makers to make life difficult for aftermarket tuners, and those tuners need to devise new work-arounds...

regarding how much PAG left on the table with the stock GT4 tune... if you drive a 991 Carrera S WOT and do same in a GT4 there is no doubt the GT4 does not respond 2500-5000 rpm like the 911

one can speculate how much PAG did this on purpose vs how much engine response was lost in having different breathing apparatus for the 981 car... my own guess is that most of the delta is a result of PAG indeed programming the GT4 engine to hold it back in order to protect the 911

mrd_spy

if you drive a 991 Carrera S WOT and do same in a GT4 there is no doubt the GT4 does not respond 2500-5000 rpm like the 911

no but a GT4 pulls stronger and has a much better torque curve over 4.5k revs.

seems another person obsessed with 2.5k revs torques ! this is a GT car !

myBailey07

Why do you want to be convinced? I have the Cobb and you'll love it. Only downside in my mind is that OBD port is in such a sucky place that you can't leave cable in for monitoring without constantly kicking it. If you want to leave it in you have to relocate the OBD port. Otherwise, I have a hard time seeing a better, more practical solution to the Cobb one...my 2c

Crazy Eddie

I think I am denoting a bit of sarcasm here in user1029