[Fred V]

I installed it with the wireless kit so I could change maps on the go. There are 5 maps available:

Map 0: Stock power
Map 1: 2 PSI over boost
Map 2: 3 PSI
Map 3: 4 PSI
Map 4: 5 PSI

I have a base 718 Cayman, manual with Sport Chrono and PSE. Running it on map 4 I can notice a HUGE improvement on power. I have the chance to work for Porsche so I've driven every version of the 718 extensively. I can safely say the car on map 4 is equal if not quicker than a stock Boxster GTS.

The other thing I was pleasantly surprised to notice, the car produces noticeably more burbles and backfires when running on Map 4 than it did on stock.

 

[Andros X Thomson]

Does it display on the MFD the higher boost? I have Cobb and the power difference is huge compared to stock, but it still hits 20psi like stock. From what I’ve read, Cobb didn’t up the boost, just tweaked other things.

 

[Viffermike]

Does it display on the MFD the higher boost?

Doubtful, since the JB4 is a 'piggyback' solution that only connects to CAN-BUS to enable a one-way override of the ECU mapping. For its data to be reflected in gauges and elsewhere in the car's electronics, it would need to connect to at least one other input bus (not sure what that would be on a Porsche) and share the changed data in a two-way stream. Most modern cars have at least four input bus options, each of which controls specific functions of the car.

I can't recall exactly how Cobb's ACCESSPort solution works, but IIRC, it connects to three different bus inputs.

 

[[email protected]]

Doubtful, since the JB4 is a 'piggyback' solution that only connects to CAN-BUS to enable a one-way override of the ECU mapping. For its data to be reflected in gauges and elsewhere in the car's electronics, it would need to connect to at least one other input bus (not sure what that would be on a Porsche) and share the changed data in a two-way stream. Most modern cars have at least four input bus options, each of which controls specific functions of the car.

I can't recall exactly how Cobb's ACCESSPort solution works, but IIRC, it connects to three different bus inputs.

The COBB AccessPort is just reflashing the ECU. The tuner has total control of rev limiters, speed limiters, boost, timing, fuel, throttle mapping, launch control, etc.. This is all done in the ECU, not via CAN Bus manipulation.

 

[Optical TDI]

Does it display on the MFD the higher boost? I have Cobb and the power difference is huge compared to stock, but it still hits 20psi like stock. From what I’ve read, Cobb didn’t up the boost, just tweaked other things.

. For Cobb, increased boost has to be part of the equation, along with timing, fuel, and other adjustments.

 

[Andros X Thomson]

Does it display on the MFD the higher boost? I have Cobb and the power difference is huge compared to stock, but it still hits 20psi like stock. From what I’ve read, Cobb didn’t up the boost, just tweaked other things.

. For Cobb, increased boost has to be part of the equation, along with timing, fuel, and other adjustments.

That’s what I thought, but on their site, they mention everything but. I don’t see any change in indication on the MFD either, which I would expect from a flash based tune.

 

[Fred V]

That’s what I thought, but on their site, they mention everything but. I don’t see any change in indication on the MFD either, which I would expect from a flash based tune.

It does not. I don't think any tune does so currently; i've read the actual cluster is hard coded in some kind of way and for now cannot be changed via the ECU.

 

[982CS]

It does not. I don't think any tune does so currently; i've read the actual cluster is hard coded in some kind of way and for now cannot be changed via the ECU.

I've got stage 2 and instrument cluster boost pressure gauge does not register more than the standard 16 psi. The true value for my tune is 20-21 psi (1.4 bar). Tuner confirmed the cluster is 'hardcoded' and cannot adjusted.

 

[Calimerus]

That’s what I thought, but on their site, they mention everything but. I don’t see any change in indication on the MFD either, which I would expect from a flash based tune.

Your indicator in the MFD displays from 0 to 1.4 boost (base model, 0-1.1 for the S)

If you put 1.8, 1.9, 2.0... boost, you will always see displayed 1.4 (or 1.1 for the S)

 

[Andros X Thomson]

That’s what I thought, but on their site, they mention everything but. I don’t see any change in indication on the MFD either, which I would expect from a flash based tune.

Your indicator in the MFD displays from 0 to 1.4 boost (base model, 0-1.1 for the S)

If you put 1.8, 1.9, 2.0... boost, you will always see displayed 1.4 (or 1.1 for the S)

This is what I was assuming, but I wasn’t sure. Maybe someone will figure it out eventually. I don’t want to put a boost gauge in and I find it a very useful system monitoring tool.

 

[IronTiger414]

That's cool. Anyone else got their's mapped or coded? I was looking into this for my 718S

 

[Fred V]

This is what I was assuming, but I wasn’t sure. Maybe someone will figure it out eventually. I don’t want to put a boost gauge in and I find it a very useful system monitoring tool.

The JB4 app does have 6 custom gauges, and one of them is boost pressure. Assuming you have a phone holder you can have it displayed in real time on your phone. Very cool feature