Spyder RS and Overactive TC
Thread Starter
Rennlist Member
Joined: Oct 2011
Posts: 1,328
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From: SoCal
Spyder RS and Overactive TC
I've owned at least one of virtually every modern Porsche over the last 20 years. Over time it seems that TC has become much less intrusive. But in the Spyder RS I find it a bit hyperactive, cutting throttle rapidly when the suspension encounters road imperfections. After finding another thread it sounds like others are calling it "skipping".
When I first took delivery TC was intervening in 90 degree turns from a stop light. This was a normal speeds that my Cayenne can take.
I've had the car aligned with more of a track setup, and that helps quite a bit. But unless the road is smooth, there's still much less grip at the rear than I would expect--causing TC to intervene more. (I've used up about 35% of the rear pads in 2,800 miles.)
Aside from alignment, has anyone found a good solution to increase rear grip? Assuming the TC isn't calibrated any differently than the 4RS, it should be curable with suspension component changes. Maybe aftermarket rear toe rods to prevent excessive changes in transient conditions? I guess there's also an outside chance that the TC is programmed to be hyperactive on this specific model?
Any way, I searched the site and found nothing. [Update: I posted a link below for anyone reading this in the future.] I could just start changing things... but if someone else has solved the problem it would be much easier to start with that solution and see how it works.
TIA
When I first took delivery TC was intervening in 90 degree turns from a stop light. This was a normal speeds that my Cayenne can take.
I've had the car aligned with more of a track setup, and that helps quite a bit. But unless the road is smooth, there's still much less grip at the rear than I would expect--causing TC to intervene more. (I've used up about 35% of the rear pads in 2,800 miles.)
Aside from alignment, has anyone found a good solution to increase rear grip? Assuming the TC isn't calibrated any differently than the 4RS, it should be curable with suspension component changes. Maybe aftermarket rear toe rods to prevent excessive changes in transient conditions? I guess there's also an outside chance that the TC is programmed to be hyperactive on this specific model?
Any way, I searched the site and found nothing. [Update: I posted a link below for anyone reading this in the future.] I could just start changing things... but if someone else has solved the problem it would be much easier to start with that solution and see how it works.
TIA
Last edited by Racer_Ex; Apr 25, 2026 at 10:32 AM.
Thread Starter
Rennlist Member
Joined: Oct 2011
Posts: 1,328
Likes: 154
From: SoCal
The main problem for me is that it interrupts the flow. It's like someone farting while you're meditating. 😅 Driving is my meditation. I connect to the car and feel every subtle movement and interaction.
I suppose it does make me slower due to the level of intervention. But we're talking street driving so that is not really the issue. A smaller issue would be rear pad wear. I'll likely have to replace them once a year.
Last edited by Racer_Ex; Apr 24, 2026 at 12:32 PM.
Thread Starter
Rennlist Member
Joined: Oct 2011
Posts: 1,328
Likes: 154
From: SoCal
Allow more wheelspin? I suppose that could be good, but would require an adjustable TC like the Clubsports have. So it's likely not an option.
But my preferred option is increasing rear grip. It is a transient problem, likely due to toe changes in the rear under load and with imperfect road conditions. Simple things like softening the rear bad could help. But if it is toe changes then you're covering up the problem with the sway bar adjustment (while taking grip away at the front - which is no bueno).
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Thread Starter
Rennlist Member
Joined: Oct 2011
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From: SoCal
In my case I was referring to a normal launch followed by something like a 90 autocross turn. Hard cornering but not stupid cornering.
From the comments received so far, it sounds like either I'm driving the car harder than others (possible) or my TC has an issue (also possible).
If anyone else has had this experience it would be helpful to know that, and what if anything helped. Otherwise I don't want to waste everyone's bandwidth.
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Rennlist Member
Joined: Aug 2015
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From: Atlanta
I haven't noticed anything unusual in mine compared to Porsches in the past (981 GTS for me).
However when you consider you now have a lot of power going only to the rear wheels and you're on tires that need to be about 190F for optimal grip, it is no surprise that TC is going to kick in more often when driven aggressively - especially in turns. It just comes with the territory.
If you're suggesting there is something unique, or something "wrong" with the SRS specifically, I don't believe there is.
However when you consider you now have a lot of power going only to the rear wheels and you're on tires that need to be about 190F for optimal grip, it is no surprise that TC is going to kick in more often when driven aggressively - especially in turns. It just comes with the territory.
If you're suggesting there is something unique, or something "wrong" with the SRS specifically, I don't believe there is.
Thread Starter
Rennlist Member
Joined: Oct 2011
Posts: 1,328
Likes: 154
From: SoCal
I haven't noticed anything unusual in mine compared to Porsches in the past (981 GTS for me).
However when you consider you now have a lot of power going only to the rear wheels and you're on tires that need to be about 190F for optimal grip, it is no surprise that TC is going to kick in more often when driven aggressively - especially in turns. It just comes with the territory.
If you're suggesting there is something unique, or something "wrong" with the SRS specifically, I don't believe there is.
However when you consider you now have a lot of power going only to the rear wheels and you're on tires that need to be about 190F for optimal grip, it is no surprise that TC is going to kick in more often when driven aggressively - especially in turns. It just comes with the territory.
If you're suggesting there is something unique, or something "wrong" with the SRS specifically, I don't believe there is.
Thread Starter
Rennlist Member
Joined: Oct 2011
Posts: 1,328
Likes: 154
From: SoCal
FWIW I finally found a link to another Rennlist thread that mentions the exact issue I'm experiencing. Looks like I'm not alone. The thread is about the DSC controller. But within that discussion several people mention the car "skipping" over road imperfections causing TC to cut throttle.
https://rennlist.com/forums/718-gts-...ontroller.html
https://rennlist.com/forums/718-gts-...ontroller.html
Three Wheelin'
Joined: Feb 2015
Posts: 1,362
Likes: 857
From: CA and Taipei
Try softening the rear sway to see if it helps.
My SRS friends never complain about a lack of rear end on the road and they drive quite fast.
TC intervenes when it detects wheel spin. Im not sure why it would intervene on a 90 degree turn from a stop light unless you mashed the accelerator pedal too much, which from a driving perspective is a mistake on inputs. If youre doing it on purpose to get the rear out a bit to have some fun then just turn ESC and TC off.
The car does not need more rear grip on public roads. We go plenty fast with OEM rear grip assuming tires are not completely shot.
My SRS friends never complain about a lack of rear end on the road and they drive quite fast.
TC intervenes when it detects wheel spin. Im not sure why it would intervene on a 90 degree turn from a stop light unless you mashed the accelerator pedal too much, which from a driving perspective is a mistake on inputs. If youre doing it on purpose to get the rear out a bit to have some fun then just turn ESC and TC off.
The car does not need more rear grip on public roads. We go plenty fast with OEM rear grip assuming tires are not completely shot.
Thread Starter
Rennlist Member
Joined: Oct 2011
Posts: 1,328
Likes: 154
From: SoCal
Thread Starter
Rennlist Member
Joined: Oct 2011
Posts: 1,328
Likes: 154
From: SoCal
Try softening the rear sway to see if it helps.
My SRS friends never complain about a lack of rear end on the road and they drive quite fast.
TC intervenes when it detects wheel spin. Im not sure why it would intervene on a 90 degree turn from a stop light unless you mashed the accelerator pedal too much, which from a driving perspective is a mistake on inputs. If youre doing it on purpose to get the rear out a bit to have some fun then just turn ESC and TC off.
The car does not need more rear grip on public roads. We go plenty fast with OEM rear grip assuming tires are not completely shot.
My SRS friends never complain about a lack of rear end on the road and they drive quite fast.
TC intervenes when it detects wheel spin. Im not sure why it would intervene on a 90 degree turn from a stop light unless you mashed the accelerator pedal too much, which from a driving perspective is a mistake on inputs. If youre doing it on purpose to get the rear out a bit to have some fun then just turn ESC and TC off.
The car does not need more rear grip on public roads. We go plenty fast with OEM rear grip assuming tires are not completely shot.
This case closed for me for now. If anyone stumbles on this thread in the future please see the link I shared earlier. Several others have expressed the same problem and there is a much wider discussion of options for addressing the TC intervention issue there. I can't say they will work but I think they have promise.
Thanks again!
Here's the link to the other thread again:
https://rennlist.com/forums/718-gts-...ontroller.html
Last edited by Racer_Ex; Apr 25, 2026 at 10:10 AM.