Project Purple - MY2026 Taycan CT4

[baccaroatie540]

Depends how anal your dealer is

Mine doesn’t care either, they actually said they would install them for me. But as you know it’s not them who decided what to cover if something needs repair under warranty. If Porsche HQ tracking and photos from past appointments show suspension modification, even though the dealer approved it, Porsche may not cover.

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[baccaroatie540]

It helps that I own a workshop 150 meters from the dealer though, so I can just let them do it.

That’s convenient then! Better to do that I think to be safe..

 

[Mr.Smith]

I want them for my 20 inch wheels, they look so sunken in as stock but I was told every time the car goes into dealer, even for routine maintenance, they scan, log and take photos around the car that gets sent to Germany and tracked internally. So even if at that appointment you don’t have any suspension problem, if it arises in the future they will see that you had modified the car before and may cause issues with warranty. It was suggested to me to remove them any time I go to dealership same like the tune

It's good practice to build a strong relationship with your service advisor and service manager. I try and seek out ones that are "Tuner Friendly". It helps for minor things like spacers so they are on your side.

I get mine pastries, submit favorable reviews, etc to establish that relationship.

 

[prj]

Swapped to summer wheels and put the spacers back on. This is in "normal" ride height:

The 21" CT wheels do look much better, but the difference in comfort isn't worth it for me.

Interesting tidbit. For the Taycan Turbo and GTS the pressure spec is 2.7 bar / 2.5 bar for part load.
For the Taycan 4, 4S and Turbo S it's 2.6 / 2.4 bar for part load, which also matches what is on my sticker, and what was in there from factory.

I've set it at 2.7 / 2.5 though.

 

[prj]

After driving this thing for a while on summer tyres - compared to the pFL Turbo S, it's much more tailhappy, the power is obscene all of the time, even at 25% and PAR is a dream.

I have some niggles with it - e.g. the PCM just displaying Porsche on the screen and not loading further - happens once in a blue moon and pressing the shortcut buttons on the climate display fixes it after a while.

The gearbox is kinda clunky - getting into reverse and switching from normal to sport - I don't remember it being like that on the TS... but it might also just be the difference in calibration, need to test the loaner again in same conditions.

And I had "error everything" after starting a single time, which fixed itself after 5 seconds. Haven't scanned to see what that has been about.

Overall positive experience so far. For the next chapter, I'll try the first-in-the-world Turbo S front inverter transplant on the J1.2. On the J1.1 it's already possible, but on the J1.2 the unit is physically different, as well as the cable routing to the motor and there are some more things on the software side.
Not that it needs more power, but I want to try it, because why not? Worst case I lose 3-4k for the parts cost.

 

[obiwan]

After driving this thing for a while on summer tyres - compared to the pFL Turbo S, it's much more tailhappy, the power is obscene all of the time, even at 25% and PAR is a dream.

I have some niggles with it - e.g. the PCM just displaying Porsche on the screen and not loading further - happens once in a blue moon and pressing the shortcut buttons on the climate display fixes it after a while.

The gearbox is kinda clunky - getting into reverse and switching from normal to sport - I don't remember it being like that on the TS... but it might also just be the difference in calibration, need to test the loaner again in same conditions.

And I had "error everything" after starting a single time, which fixed itself after 5 seconds. Haven't scanned to see what that has been about.

Overall positive experience so far. For the next chapter, I'll try the first-in-the-world Turbo S front inverter transplant on the J1.2. On the J1.1 it's already possible, but on the J1.2 the unit is physically different, as well as the cable routing to the motor and there are some more things on the software side.
Not that it needs more power, but I want to try it, because why not? Worst case I lose 3-4k for the parts cost.

What do you mean about the gearbox? I haven’t noticed anything for reverse. But when going into sport, I can sometimes feel a slight skip/lurch. I assumed a downshift?

And yes, the power with MapEv is obscene. I have to be super careful on the pedal. It doesn’t take much more than a twitch of my foot and the car will lunge forwards. I mean, when I intend to do it it’s awesome. But when it’s in response to a car merging in on you or just a little extra push you didn’t intend it can be eye opening for me as a driver (and alarming to my wife as a passenger). To be clear, I wouldn’t trade it for the world. But I have to be a lot more thoughtful/careful now as a driver compared to the stock power (4s).

 

[prj]

What do you mean about the gearbox? I haven’t noticed anything for reverse. But when going into sport, I can sometimes feel a slight skip/lurch. I assumed a downshift?

There's a slight jerk when going into reverse if the car is not completely stationary at the moment that you do it.
And if you are just rolling forward after starting the car in normal and change it to sport, then that doesn't feel great either, because it shifts from 2nd into 1st. I think I'll just modify the software to start in first gear.

 

[obiwan]

There's a slight jerk when going into reverse if the car is not completely stationary at the moment that you do it.
And if you are just rolling forward after starting the car in normal and change it to sport, then that doesn't feel great either, because it shifts from 2nd into 1st. I think I'll just modify the software to start in first gear.

Oooh, yes please. I didn’t know that was a lever under your control (gear selection). I pretty much switch to sport every time, so I hit that hiccup a lot.

 

[prj]

Oooh, yes please. I didn’t know that was a lever under your control (gear selection). I pretty much switch to sport every time, so I hit that hiccup a lot.

The ASG is the TCU on the Taycan. It controls all aspects of the gearbox. I have some ideas to test.

 

[gnr3312]

For the next chapter, I'll try the first-in-the-world Turbo S front inverter transplant on the J1.2. On the J1.1 it's already possible, but on the J1.2 the unit is physically different, as well as the cable routing to the motor and there are some more things on the software side.
Not that it needs more power, but I want to try it, because why not? Worst case I lose 3-4k for the parts cost.

Can you elaborate what this means for J1.1? This is the first I hear of it although tbh I don’t understand it either lol

 

[Mr.Smith]

After driving this thing for a while on summer tyres - compared to the pFL Turbo S, it's much more tailhappy, the power is obscene all of the time, even at 25% and PAR is a dream.

I have some niggles with it - e.g. the PCM just displaying Porsche on the screen and not loading further - happens once in a blue moon and pressing the shortcut buttons on the climate display fixes it after a while.

The gearbox is kinda clunky - getting into reverse and switching from normal to sport - I don't remember it being like that on the TS... but it might also just be the difference in calibration, need to test the loaner again in same conditions.

And I had "error everything" after starting a single time, which fixed itself after 5 seconds. Haven't scanned to see what that has been about.

Overall positive experience so far. For the next chapter, I'll try the first-in-the-world Turbo S front inverter transplant on the J1.2. On the J1.1 it's already possible, but on the J1.2 the unit is physically different, as well as the cable routing to the motor and there are some more things on the software side.
Not that it needs more power, but I want to try it, because why not? Worst case I lose 3-4k for the parts cost.

Does the front inverter swap require a lot of programming on the J1.1?
There is almost no need for a Turbo S if you can swap the front inverter

 

[prj]

Does the front inverter swap require a lot of programming on the J1.1?
There is almost no need for a Turbo S if you can swap the front inverter

Not just programming... I don't want to go into too much detail for now.

 

[prj]

Can you elaborate what this means for J1.1? This is the first I hear of it although tbh I don’t understand it either lol

You can swap the front inverter for turbo S one to get more power, but it's not that simple as to just swapping the part.

 

[ze_shark]

After driving this thing for a while on summer tyres - compared to the pFL Turbo S, it's much more tailhappy, the power is obscene all of the time, even at 25% and PAR is a dream.

What do you mean by tailhappy ? Prone to power oversteer ??
I find what i interpret to be PTV awesome when cornering out, but i have never felt any hint of snap oversteer.
Are you happy with the RWS balance in Normal mode in mid-speed constant radius bumpy curves ? You do not feel the wiggle from the rear ?

 

[prj]

What do you mean by tailhappy ? Prone to power oversteer ??

Yes.

I find what i interpret to be PTV awesome when cornering out, but i have never felt any hint of snap oversteer.

Your car is slow

Are you happy with the RWS balance in Normal mode in mid-speed constant radius bumpy curves ? You do not feel the wiggle from the rear ?

No issues with any wiggles.

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