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Launch Control issue

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Old 08-18-2018, 01:28 PM
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GTSBoneDoc
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Default Launch Control issue

Hey guys

finally launched my tts (991.2).

Had launch control engaged launched ok but bounced lff first gear and wouldn’t go to 2nd (it was in auto). I let off a little and floored again and it shifted.

any ideas what i did wrong?

also, any concern about overreving?

thanks!
Old 08-18-2018, 03:26 PM
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Nanook
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Sounds like a traction issue..was traction control off ?...should be
Old 08-18-2018, 03:53 PM
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Big Swole
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I've seen people launch with TC on and off. I leave mine off when doing LC, but have done it once with. Not sure I could feel much difference.

Can damage occur if you don't turn it off?
Old 08-18-2018, 04:04 PM
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GTSBoneDoc
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Crap I didn't know I was supposed to turn TC off!

Still weird that it wouldn't kick into 2nd and instead bounced off rev limiter. Would have thought it would just cut power but not block going to next gear...
Old 08-18-2018, 04:05 PM
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Nanook
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No damage the car will just shut you down kinda like what Bonedoc was identifying...if you in fact get slippage
Old 08-18-2018, 04:10 PM
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DJ23
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Also make sure the engine is at operating temperature, and that the display emits the "Launch Control" app.

Jay
Old 08-18-2018, 08:26 PM
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stealthpilot
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You don't need to turn traction control off. The car handles the settings by itself.

You need to put the car in either Sport or Sport Plus, hold down the brake with your left foot, floor the throttle with the right (at this point the display in the instrument cluster will say "Launch Control"), and then release the brake pedal to launch. No other settings changes needed other than selecting sport or sport plus.
Old 08-18-2018, 08:29 PM
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stealthpilot
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Originally Posted by Big Swole
I've seen people launch with TC on and off. I leave mine off when doing LC, but have done it once with. Not sure I could feel much difference.

Can damage occur if you don't turn it off?
It's not necessary. Launch control is its own traction mode so it is irrelevant whether you had it on or off prior to activating launch control. I would leave it on, because then once you are done with the launch it will revert to on.
Old 08-18-2018, 08:47 PM
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Nanook
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Manual states Sport Plus only must be selected to activate LC..I have never tried Sport for launch control..
Old 08-18-2018, 09:18 PM
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Big Swole
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Originally Posted by stealthpilot
It's not necessary. Launch control is its own traction mode so it is irrelevant whether you had it on or off prior to activating launch control. I would leave it on, because then once you are done with the launch it will revert to on.
Great info and Thank you!!
Now, my TTS is a 997.2, but I assume it's the same compared to the 991.1 & .2's.


Old 08-18-2018, 09:19 PM
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Big Swole
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Originally Posted by Nanook
Manual states Sport Plus only must be selected to activate LC..I have never tried Sport for launch control..
This is correct according to what I've read / seen also. I always use Sport Plus.
Old 08-18-2018, 11:23 PM
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neil.schneider
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I have done it quite a few times. I always put it in sport plus, left foot on the break hard, right foot full throttle and then release the break. I always leave tracks control alone in other words it’s always on. I have never had a problem.
Old 08-18-2018, 11:35 PM
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Big Swole
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Originally Posted by neil.schneider
I have done it quite a few times. I always put it in sport plus, left foot on the BRAKE hard, right foot full throttle and then release the BRAKE. I always leave tracks control alone in other words it’s always on. I have never had a problem.


^ Fixed it for ya....
Old 08-19-2018, 09:08 AM
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Originally Posted by GTSBoneDoc
Hey guys

finally launched my tts (991.2).

Had launch control engaged launched ok but bounced lff first gear and wouldn’t go to 2nd (it was in auto). I let off a little and floored again and it shifted.

any ideas what i did wrong?

also, any concern about overreving?

thanks!
Is your car stock? Any mods?

Manuel
Old 08-19-2018, 10:08 AM
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Nanook
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^ Ya was thinking the same...traits of a stage IV


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