While Speccing my 991 PDK car, I am wondering if i need the sport chrono

I now have a boxster S pDK with Sport Chrono, PSE , paddles etc

I am not sure the value of SPort chrono if i do not care for gmeter , clock and sport plus as Sport is Std on the car. I also do not Track the car to use max RPM in auto mode

After owning the 981S for 18 months, I am not sure what sport plus enhances in manual mode since sport in manual mode has the same shift speed, shift feel and same pse sound levels compared to sport plus

So on a 991 with sport chrono , do the engine mounts stiffening make a noticeable difference in handling ?

 

In your case, I would think you would not need it. You listed every reason why, to you, it's not necessary. The real gain of the sport chrono is found on the track and the Launch Control.

I'm sure others will say what it's worth. There have been several threads on this already. If you are not sure you need it, then you probably don't.

As for telling the difference with the engine mounts, no idea. I haven't been in one without Sport Chrono.

 

I'm still getting it straight, but I'm fairly sure that with PASM, PSE and SChrono on my 7MT:

Sport - sharper throttle response, PSE open, auto start/stop off

Sport+ - Sport plus PASM stiff, PSM threshold higher

The dynamic engine mounts stiffness do not change with sport settings.

PDCC, if equipped, gets stiffer in Sport+,

PDK gets higher shift points in Sport, and faster, redline shift points in Sport+. In addition, Sport+ would allow Launch Control to be used.

I do not notice the sharper throttle response, PSE can be turned off/on independently, PASM can be stiffened independently, and PSM can be turned off.

So on a 7MT, SChrono gets you dynamic engine mounts, a silly stopwatch/clock and a Sport+ button whose functions can be obtained separately. I can't say if the engine mounts alone are worth it (haven't driven one without), but in reality that's all you're getting.

 

I can definitely tell when I have the active suspension on vs off.

 

I can tell when PASM is set to stiff also, that isn't what the OP asked.

 

OK....not pasm...dynamc engine mounts. My mistake.

 

In my view, you have a made very sound arguments to indicate that Sport Chrono is not meaningful to you. The one argument that does not favor you, is resale. Unless, you are leasing, your resale will certainly be compromised due to lack of market interest in a car without SC. Even though you may not enjoy its benefits, others do & I sense you are in a minority position. Why limit your resale market? On a technical note, the change in throttle response, steering, gearing & active suspension make a world of difference to an enthusiast.

Frank C.

 

Right on! Saved me some typing. Cars that don't have it suffer being lonely on dealer lots. They should have happy owners.

 

All 911 suffer some from movement of the engine though a lot of people don't have the feel for a car enough to notice it. When the car rotates the engine lags a little at first and then will continue when you stop the amount of yaw you want. Think of a car or truck pulling a trailer. Same thing only minute. This is why they hard mount the engines in the cup cars.


Sport chrono with reduce engine movement when you don't need it an still help to isolate the engine vibration when you don't want it. Since I tend to drive my cars with sprit I would not want a 911 without. Have not driven both back to back and standard car without still drives marvelous but the reason behind it can't help but make a difference.

 

To the OP's question "Engine mount stiffening , is it noticeable?" I can only say:

I do not notice it in my current use case, no track, spirited backroad driving.

 

I completely agree with Frank. I thought long and hard about spending the money for SC because I thought I would never use launch control. My dealer recommended it for resale and I ordered it. I have never used launch control on my car and I still don't regret getting it. First, you probably will never be able to upgrade it after the fact and second, I like the vibration damping in the engine mounts. Save your money on the Bose and get SC and the HD radio.

ChuckJ

 

I thought I was the only person on this forum with SC that never used launch control. I am still wondering how I will ever use it. When I track my car, it is of no use for obvious reasons. When I autocross, the first turn always seems too close to the start line to make any sense. I thought about it once, but didn't think I could slow the car down in time to make the turn.

So, for the rest of the forum users of launch control, how and when do you use it? I truly am perplexed about its value.

 

I also never have used LC !

 

It really is just a gimmick.. It's one of those things you try once just to check it out and never use again..

In general I'd not get sc on my next 911... I bought into that resale argument but i think it is a rationalization... The dynamic engine mounts are another thing that have negligible value as well unless you push the car very hard in turns..

 

I have experienced it on a dealer test car and thought it was great fun. It's just not one of those things that is usable in the world I drive. I do love the mini-launch control where RPMs surge to 3500 on start and I'm not sure if that's a function of an SC capable PDK or if it's in all PDKs.

ChuckJ