PSM sport mode?
Thread Starter
Instructor
Joined: Dec 2013
Posts: 176
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From: The Woods
PSM sport mode?
I hit the traction control button on my GTS for kicks and " PSM Sport mode on " came up. What is the difference? Its been pouring rain here so I decided not to tempt fate 
Pro
Joined: Jan 2013
Posts: 606
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From: Northern Vermont
I don't understand what you pressed. I don't have a "traction control button" on my GTS.
I do have a PSM button, and if I press it, it turns off "Porsche stability management" aka electronic nanny, the LED on the button turn on, and a yellow warning comes on for a few seconds in the display, and an amber warning stays on in the tach dial. Sport mode (and sport + if you have sport chrono pkg) relaxes but does not turn off PSM.
I do have a PSM button, and if I press it, it turns off "Porsche stability management" aka electronic nanny, the LED on the button turn on, and a yellow warning comes on for a few seconds in the display, and an amber warning stays on in the tach dial. Sport mode (and sport + if you have sport chrono pkg) relaxes but does not turn off PSM.
Thread Starter
Instructor
Joined: Dec 2013
Posts: 176
Likes: 9
From: The Woods
Sorry yes, PSM button.(In my defense its the same icon,(car skidding) on the button as all my other vehicles for the traction control) 
I press mine once, in the display I get " PSM Sport mode" press again, "PSM off" . Mine is an 18 GTS.
I press mine once, in the display I get " PSM Sport mode" press again, "PSM off" . Mine is an 18 GTS.
Rennlist Member
Joined: Jun 2014
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You hit it and you get PSM sport mode, which allows a greater degree of slip before it engages the nannies.
If you hold the same button down longer, you will get PSM off, which turns off all the nannies ( except ABS in extreme cases).
If you hold the same button down longer, you will get PSM off, which turns off all the nannies ( except ABS in extreme cases).
Racer
Joined: Jun 2018
Posts: 338
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I’m considering a 997 and wondering if PSM in sport mode is similar. I drove a 718 cayman with sport mode on and it wa awesome - some fish tailing but always under control - even in the wet!
Is that just 718/991 models? Or does the 997 do it too? I drove a 997 2S and it seemed to, but it was in the dry and I wasn’t pushing it as hard with the sales guy sitting in the passenger seat, so it was hard to tell.
Is that just 718/991 models? Or does the 997 do it too? I drove a 997 2S and it seemed to, but it was in the dry and I wasn’t pushing it as hard with the sales guy sitting in the passenger seat, so it was hard to tell.
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Pro
Joined: May 2017
Posts: 686
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From: Seoul, Korea
I would be careful with psm sport. i've driven on track with psm sport and oversteered too much on a late trail brake and ended up in the guard rail. lucky for me it was only bumper and headlight and no frame damage. there is a difference in feeling and control in psm sport vs psm off but psm sport will not save you all the time. its definately more enjoyable as you can oversteer in and out of corners while psm on barely lets you without it kicking in, but its not fail safe. safe driving! i'm still working on getting my courage and nerve back to drive on psm sport on track.
Racer
Joined: Jun 2018
Posts: 338
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Absolutely understand. A big lesson I learned was taking corner in one of my first cars with traction control off and pegging the curb with the rear wheel.
This would be more like fun cornering at low speeds in safe situations. I like that I can dial it back without it complete being off. On track I’d likely leave psm on completely (if I track it).
This would be more like fun cornering at low speeds in safe situations. I like that I can dial it back without it complete being off. On track I’d likely leave psm on completely (if I track it).
1st Gear
Joined: Oct 2023
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Psm with sport chrono for 2017+
It allows up to15 degrees of yaw drift before intervening. This was introduced in 2017 in
https://vimeo.com/178216591
https://vimeo.com/178216591
Rennlist Member
Joined: Aug 2017
Posts: 266
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From: San Francisco
Amusing Porsche write-up about PSM Sport:
https://www.porsche.com/central-east...iew/article07/
https://www.porsche.com/central-east...iew/article07/
One of the greatest challenges at the limits of performance is the transition from stability to instability. Developers call this “yaw acceleration,” which refers to the strength of the impulse that leads to oversteering. If this impulse is too strong, it’s hard to get the car back under control. And it’s precisely at this point that PSM Sport sets in, without any additional sensor systems. “We haven’t just simply raised the control thresholds,” explains Peglau. “What we’ve done instead is dampen the initial yaw acceleration. This allows us to create a gentler transition. As soon as the system recognizes that the driver has everything under control, it allows for greater freedom—the threshold values for traction control are raised and the PSM’s interventions in braking for stability are toned down. This approach turns stability control into instability control, so to speak, without distorting the basic character of the car.”
Pro
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From: AR USA.