[Whitety]

It apoears that our 718C comes with build in rev matching that cannot be disabled. On manual mode when down shifting, the rpm auto match very fast to the lower gear amd i can't rev higher prior to shifting down ...

 

[GTS18BGTS]

It apoears that our 718C comes with build in rev matching that cannot be disabled. On manual mode when down shifting, the rpm auto match very fast to the lower gear amd i can't rev higher prior to shifting down ...

In normal mode it does not rev match. It does that in sport and sport+. You can rev match in the latter two modes, but you have to get on it before moving the shift lever. Once the ECU (I assume) reads you are downshifting it revs and pretty quickly. I've gotten used to it and it's become a problem when driving my 350Z lol

 

[CaymanMatt]

Is the OP referring to a PDK equipped car? It sounds like it, since manual equipped cars have only one mode - manual.
OP: if this is a PDK car, why would you want to over rev the rpm that the car has selected for you? I believe it knows the optimum rpms.
Edit:changed "VA" to "a"

 

[dreamer]

I’m confused. If we are talking about rev matching, we’re talking about a 6mt, no? And it’s my understanding you only get the rev matching in sport and sport+ with the chrono package. So if the OP is running around in the sport modes then yes, rev matching will be on. I had heard though that you can disable the rev matching in sport mode if you disable stability management and something else. Not sure. Don’t hold me to that.

 

[CaymanMatt]

Whitety:
Did we answer your question? I still want to know what your original question was really about - PDK or manual.

 

[Whitety]

Yes... Mine is PDK

 

[DriveInHouston]

For a PDK car, here is how Porsche describes the gear change:

How does the 7-Speed Porsche PDK transmission work?
Whenever a particular gear is engaged, the 7-speed PDK automatically preselects the next gear. As the clutch of the engaged gear opens, the clutch of the target gear closes simultaneously. That means gear changes take place within milliseconds, providing a seamless transition that allows you to truly enjoy your time on the road.

The opening/closing of the clutches happens in milliseconds. Where in this millisecond interval do you want to put your foot to rev the engine differently than PDK does and what would the result be when the second clutch closes with the engine revs unmatched?

 

[CaymanMatt]

Yes... Mine is PDK

Ok. Back to my original question then - why do you want to over-rev what the car knows it needs?

 

[johan]

Pdk rev matches in sport and sport+
you can hear it and it is in the manual ?

 

[DriveInHouston]

Pdk rev matches in sport and sport+
you can hear it and it is in the manual ?

What does PDK do in the Normal Mode?

 

[johan]

What does PDK do in the Normal Mode?

Then it just switch clutch as any normal double clutch gearbox.
Double clutches are way faster then a MT so there is no need to blip on down shift for the sake to keep the car straight.
But it reduces alot of ware since the bite point in Sport/sport+ is changed.

 

[DriveInHouston]

Then it just switch clutch as any normal double clutch gearbox.
Double clutches are way faster then a MT so there is no need to blip on down shift for the sake to keep the car straight.
But it reduces alot of ware since the bite point in Sport/sport+ is changed.

I never drive in Normal Mode, so I have no experience with the difference. I'll try it when I go out...

 

[DriveInHouston]

I drove in Normal Mode this afternoon. I didn't notice any difference in rev matching comparing between Normal and Sport, other than the louder noise from the PSE. Maybe I am too coarse to understand the daintier details of rev matching in a PDK.

 

[craig66]

I would tend to think that there is going to be rev matching by the PDK no matter what mode but that in the sport and sport+ mode since it is a more aggressively tuned mode the matching requirements would be more pronounced but I agree that either way there should be no need to supplement it even in the manual mode.

 

[Treemagnet]

I have not discerned any difference in rev matching, regardless of mode.

 

[roundtail]

I rev match the 6M with the ball of my right foot, and I can safely say that I'm nowhere near as good at it as a PDK is. So the question at hand seems to be moot, and I cannot think of a reason to try to defeat the PDK sequencing.

 

[DriveInHouston]

Rev matching on a MT is one of the most instant gratification exercises if successful! With enough persistence, most MT drivers can learn to do it.

Let's accept that a good rev match downshift change takes about 0.5-0.75 seconds. De-clutch, while foot on the brake, nudge gas pedal while still on the brake and at the peak of the nudge, downshift and let clutch go. Vooorm, aaah!...

You can't stick your foot in there at the right time and for the correct depth of gas pedal in less than 1/10th of a second that the PDK takes for the downshift. It is beyond human reaction times. However prepared, anticipating or jumping the gun you might want to be.

The computer though is perfect! You downshift and you see the needle in its new position, not wavering, ready to follow your lead in this dance. You double downshift and you approach an aural nirvana... I heard someone had a triple downshift done by the PDK itself, not with the paddles. I'd like to experience this one day... It means you are hitting an apex at the limit of the brakes with your hair on fire!