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-   -   991 turbo gearing. (https://www.6speedonline.com/forums/991-turbo/313533-991-turbo-gearing.html)

Dlff 07-24-2013 03:11 AM

991 turbo gearing.
 
Does anybody know if the 991 TTS PDK's 7th gear is strictly an overdrive gear just like the one fitted to the run on the mill 991 models whereby you cannot attain top speed with It. Also interesting to know if the Turbo's PDK shifts as fast as the GT3 version. Cheers mate & all of you out there have a nice day!

Tony007 07-26-2013 06:58 PM

Here are the gear ratios for the 991 Turbo / Turbo S

1'st 3.909
2'nd 2.286
3'rd 1.577
4'th 1.182
5'th .94
6'th .786
7'th .622

Top speed is achieved in 6'th

Dlff 07-26-2013 09:41 PM

Thanks Tony007. Looks like the Turbo's gearing is very similar to the run on the mill 991's gearing. 7th gear is a pure Overdrive unlike the GT3 whereby you can hit top speed on 7th gear. Cheersmate!

radarryan 07-27-2013 12:22 AM


Originally Posted by Dlff (Post 3903644)
Thanks Tony007. Looks like the Turbo's gearing is very similar to the run on the mill 991's gearing. 7th gear is a pure Overdrive unlike the GT3 whereby you can hit top speed on 7th gear. Cheersmate!

Correct. As far as I know, the 991 GT3 is the only PDK that 7th is not an overdrive.

Dlff 07-27-2013 02:43 AM


Originally Posted by radarryan (Post 3903734)
Correct. As far as I know, the 991 GT3 is the only PDK that 7th is not an overdrive.

Still the GT3 with a shorter final drive ratio & more closely stacked gear ratios. It will not be as fast as the TurboS given in any gear scenario simply because of the colossal amount of torque the Turbo S has from 2,000+rpm onwards. IMHO, this makes the Turbo S a better choice than the GT3 as a road car.
Cheers mate!

991TT 07-27-2013 04:18 AM


Originally Posted by radarryan (Post 3903734)
Correct. As far as I know, the 991 GT3 is the only PDK that 7th is not an overdrive.

sure coz the short gearing ... makes it a bad daily car for me :( but i still love it

RingMeister01 08-01-2013 05:10 PM

The turbo is able to have the longer ratios as the carrera's with its torque output. It'll be great to see the shorter ratio and 7th gear top speed in the GT2 PDK


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