Facelift 997 Facts

[Alex L]

ORIGINAL: garyw
I've been reading rumours that this PDK cannot handle the torque generated by the Turbo...

I have heard the same thing many times over the last couple of years.

I guess it will mean it will be MUCH harder to do any kind of aftermarket tuning as if PDKcan't handle 620Nm now, then how will it handle 800Nm from just a Stage II powerkit?! ...it won't!

If the GT1 based engine is dropped for the Turbo with the next incarnation then perhaps you can kiss aftermarket tuning goodbye all together - which I would say would reduce Turbo sales DRAMATICALLY as this is one of the major selling points of the Tubo (easily accessible extra power with only a few mods).

 

[okellyt]

ORIGINAL: Jimberland

Any idea when there will be models available to test drive?
Also, will there be a Powerkit option?

No powerkit on the facelifted model, I asked

Re -PDK on Turbo, I heard the same - Porsche are still not happy it can handle the torque, so delayed launch for Turbo with PDK - it may not happen until the 998

 

[Rotorhead]

The predicted second run of GT3s , due late '09, probably won't have PDK either.

 

[yan]

ORIGINAL: Alex L

ORIGINAL: garyw
I've been reading rumours that this PDK cannot handle the torque generated by the Turbo...

I have heard the same thing many times over the last couple of years.

I guess it will mean it will be MUCH harder to do any kind of aftermarket tuning as if PDKcan't handle 620Nm now, then how will it handle 800Nm from just a Stage II powerkit?! ...it won't!

If the GT1 based engine is dropped for the Turbo with the next incarnation then perhaps you can kiss aftermarket tuning goodbye all together - which I would say would reduce Turbo sales DRAMATICALLY as this is one of the major selling points of the Tubo (easily accessible extra power with only a few mods).

I tend to take all rumours re. Porsche cars with a pinch of salt, e.g. as already mentioned PDK was widely predicted to be available day 1 on the Turbo.

Nissan have produced a double-clutch system which supports getting on for 600Nm but they have had the luxury of building the car from scratch, not reverse engineering something into the existing 911 system - if Porsche need to make more radical enhancements to deal with the torque then that might be the problem...

 

[garyw]

I too take these rumours with a pinch of salt..[]

Porsche is at the top of the game.. marketing machine

They will launch the PDK in the Turbo and probably the GT3 when they think the time is right.. whether in the terms of profits or sales.. [] []

garyw

 

[Dylan1]

as the 997TT tip is already quicker than the 997 man I wonder if thats why they are in no rush??both 987 and 997normal aspiration cars are slower in tip but 997 quicker in pdk than man(presume 987 will also be quicker in pdk too).i have never had it explained why the turbo is quicker with tip and presumably there would be no point in introducing pdk to TT if it was no quicker than tip?just a thought

 

[Lancerlot]

ORIGINAL: dyllan
.i have never had it explained why the turbo is quicker with tip and presumably there would be no point in introducing pdk to TT if it was no quicker than tip?just a thought

1 gear less in the cluster - that's all!
Regards,
Clive

 

[Rodney Naghar]

ORIGINAL: dyllan
i have never had it explained why the turbo is quicker with tip and presumably there would be no point in introducing pdk to TT if it was no quicker than tip?just a thought

It's because in the 997 turbo 'tip (not the 996 version) from a standstill you can put your foot down on the break pedal and build up revs before launch, so the turbo has time to spool up, and torque to build up before you are even moving, hence faster 0-60 times.

 

[yan]

Essentially a launch control system (undocumented) aided by optimised gear ratios.

If/when it appears I'd anticipate that PDK should be quicker than Tiptronic on Turbo:
Tiptronic is slower vs manual on standing start over ~90mph as well as middle distance acceleration, let down by a lack of gears/ratios in this respect- see May EVO for comparison of Cabriolet model figures - 6 gears (7th not relevant) is preferable to 5.
I read (Edmunds Inside Line) that Porsche are claiming that the PDK system shifts 60% faster than Tiptronic - this is not a comparison with existing Turbo Tiptronic but suspect would be significant regardless.

Haven't seen any information about relative weights of the respective gearboxes and I can't glean anything on this from the Porsche brochure and/or web special. Maybe I have missed it...[]

 

[Dylan1]

thanks for that-i always wondered why with the same(as far as i was aware)tip box the normal aspiration was slower(as expected)with tip yet the TT faster.all now clear!!so it looks like the pdk would still offer quicker changes than the tip even for the TT then