Part 3: The Quest for the Perfect Tune

[Rik_CT4s]

The numbers are on www.mapev.net
There is no rhyme or reason to them. On some models the launch and the boost power and torque are equal, on others there's 3 different power levels, etc.
After the tune J1.1 is 910Nm and J1.2 is 990 Nm.

Ask Porsche. You can see the actual power and torque on the website
The specified by Porsche does not match reality often. If you compare our numbers to the official Porsche numbers you will see that. But ours are directly from the control unit, so they are correct.

The J1.2 Turbo GT can do 860 kW at 90% SoC...
The 4S I measured 691 kW at 90% SoC.
But that's the peak, at higher speed it falls off, especially for the Turbo GT, the 4S is pretty flat - still makes 671kW at 200km/h, whereas the Turbo GT has fallen to "only" 805kW at that point . Anyway you have to worry a lot less about the performance being impacted by the battery on the J1.2 unless you have a Turbo GT.

Question regarding the suspension.

On your website I read:
"Simultaneously the suspension is stiffened and the traction control adjusted for optimal acceleration. Without this unique function, that only we provide, it is impossible to exceed 950 Nm of torque outside of launch control".

My car is a TS CT, like yours, including PDCC.
Does it mean I always need to drive with stiff suspension (like it is in sport plus all the time kind of feeling)?

As if so that will infringe on comfort (which I do value), I also value more power/torque...bit of a dilemma as such....or can I still drive in a "comfort" modus while having max torque and power?

Thank you.

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[prj]

My car concerns a TS CT. Does it mean I always need to drive with stiff dampers?

No, absolutely not, this happens only momentarily when the throttle is >99%.

or can I still drive in a "comfort" modus while having max torque and power?

See above. If your throttle is not completely to the floor then nothing is affected.

 

[Rik_CT4s]

No, absolutely not, this happens only momentarily when the throttle is >99%.

See above. If your throttle is not completely to the floor then nothing is affected.

Got it, clear thanks.
When its floored, that's fine as there is simply more "normal" driving than flooring it.

And when flooring it, power delivery for the TS is continously no? (Not only for 2.5s like during launch mode without the tune).

Soon of to the dealers for 60k service...thereafter, if I keep this car, to consider this tune seriously). Just a pity personally that 100-200 is limited (due to hardware limitations, not your tune)

 

[prj]

Got it, clear thanks.
When its floored, that's fine as there is simply more "normal" driving than flooring it.

And when flooring it, power delivery for the TS is continously no? (Not only for 2.5s like during launch mode without the tune).

Soon of to the dealers for 60k service...thereafter, if I keep this car, to consider this tune seriously). Just a pity personally that 100-200 is limited (due to hardware limitations, not your tune)

You get the power all the time, but the inverter extra torque is limited to a timed burst. However in a Turbo S by the time the burst runs out you're already below the torque on the inverters anyway. Basically for all practical intents and purposes it's permanent.

 

[prj]

Quick question, will this screen reflect the new higher power levels once the controller is installed? Also something else I’ve noticed, if the push to pass is activated at low speeds (probably the same at all speeds) the suspension becomes rock solid, like much harder than even sports plus. No idea why Porsche did this, i pulled the push to pass lever on the steering wheel by mistake earlier at like 10mph on a bumpy road and the car became nearly undrivable.

Update about this - it actually doesn't change the power.
The power does not come from the ASG, it's coded in the PCM. I think you might need PIWIS Engineering to code that to a different value though.
This is how it works on other Porsches.

So this is not something we can change with our modified controller.

 

[Xaria Racing]

I got the MapEV tune for my 2025 Turbo GT Weissach and couldn’t be happier. 0-60 MPH is coming in at 1.96 seconds (1.80 with 1’ rollout), 1/4 mile in 9.05s @ 152+ MPH! Car is also a rocket from a roll now. Previously it was doing 5.1s 60-130 MPH, it’s now 4.5!

 

[Xaria Racing]

Results

 

[GTS UK]

Amazing results, need to get myself a Turbo GT asap! Fitted this to a 2025 J1.2 GTS a couple of days ago. Took me about 20 mins to fit as I was very careful not to damage any clips etc.

Car feels awesome and Dmitri has been very accommodating with a few over the air tweaks (extra regen etc). Been having issues with my Draggy as I have the acoustic glass, will probably end up gaffer taping it to the roof unless anyone has any other suggestions?

Took a quick run using the performance app in Car Scanner. No idea how accurate this is but the figure it gave me feels believable. Will post again when I get Draggy working.

 

[Xaria Racing]

Awesome results for the GTS!

I also had issues with Dragy not being able to acquire satellite signals. The trick was to mount it on the rear wind screen. If you have the Draggy Pro, you can use the mount that comes with it. Works like a charm!

 

[Mr.Smith]

I got the MapEV tune for my 2025 Turbo GT Weissach and couldn’t be happier. 0-60 MPH is coming in at 1.96 seconds (1.80 with 1’ rollout), 1/4 mile in 9.05s @ 152+ MPH! Car is also a rocket from a roll now. Previously it was doing 5.1s 60-130 MPH, it’s now 4.5!

Huge 60-130 improvement on a roll. How does that compare to your Plaid?

 

[GTS UK]

Awesome results for the GTS!

I also had issues with Dragy not being able to acquire satellite signals. The trick was to mount it on the rear wind screen. If you have the Draggy Pro, you can use the mount that comes with it. Works like a charm!

Will give that a try, thanks for the tip!

 

[Vision]

I got the MapEV tune for my 2025 Turbo GT Weissach and couldn’t be happier. 0-60 MPH is coming in at 1.96 seconds (1.80 with 1’ rollout), 1/4 mile in 9.05s @ 152+ MPH! Car is also a rocket from a roll now. Previously it was doing 5.1s 60-130 MPH, it’s now 4.5!

Amazing!. Is that on the street?.

 

[Emm]

Car feels awesome and Dmitri has been very accommodating with a few over the air tweaks (extra regen etc).

How much regen did you add, and how would you describe the difference? (Myself I initially wanted +40%, then went down to +20% to not make too much of a change, and then wound up making no changes to regen as per Dmitri’s recommendation.)

Been having issues with my Draggy as I have the acoustic glass, will probably end up gaffer taping it to the roof unless anyone has any other suggestions?

I also have the insulation glass, and my solution has been to roll down the window and hold the unit through the window while accelerating – not ideal, but at least I got the original Porsche figure (0-100 km/h at 3.69 sec; before the tune, that is, as I haven't installed it yet).

Took a quick run using the performance app in Car Scanner. No idea how accurate this is but the figure it gave me feels believable. Will post again when I get Draggy working.

0-60 at 2.5 sec sounds terrific, if correct; if so I'm guessing 0-100 km/h would be at around 2.7 sec, which also sounds great (myself I’m happy if I can go below 3.0 sec, as I have the J1.1 GTS with lots of factory options, weighing in at around 2.500 kg).

 

[GTS UK]

Went with 30% extra regen as per Dmitri’s recommendation as a max due to brake blending issues if set higher. It’s noticeable but not night and day.

 

[prj]

How much regen did you add, and how would you describe the difference? (Myself I initially wanted +40%, then went down to +20% to not make too much of a change, and then wound up making no changes to regen as per Dmitri’s recommendation.)

If you change your mind we can always flash the controller remote and add it. No worries.

I got the MapEV tune for my 2025 Turbo GT Weissach and couldn’t be happier. 0-60 MPH is coming in at 1.96 seconds (1.80 with 1’ rollout), 1/4 mile in 9.05s @ 152+ MPH! Car is also a rocket from a roll now. Previously it was doing 5.1s 60-130 MPH, it’s now 4.5!

Thank you!
Time to also post the Taycan GT curves on the website.

btw another interesting tidbit about the Taycan GT- the gear ratios are different from all the other cars.
That's also why it's so much faster.

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