718 gear ratio data
Discussion
I asked a dealer for this, no reply and not much hope of them finding out I don't think.
Interestingly the blurb mentions that the 7th gear on the PDK will be closer to 6th than 'normal' versions.
No one else seems to mind as GT cars are so track focused, which I get, but as I use mine for other journeys I find the low 7th in the PDK (GT3) and the low 6th on my old 981 GT4 a pain.
The daft thing is that on most tracks you still don't get into 7th anyway, so why not make it a higher gear for cruising to and from the tracks.
Interestingly the blurb mentions that the 7th gear on the PDK will be closer to 6th than 'normal' versions.
No one else seems to mind as GT cars are so track focused, which I get, but as I use mine for other journeys I find the low 7th in the PDK (GT3) and the low 6th on my old 981 GT4 a pain.
The daft thing is that on most tracks you still don't get into 7th anyway, so why not make it a higher gear for cruising to and from the tracks.
rigster2 said:
The PDK
You need to multiply each gear ratio by the rear axle ratio for the total reduction factor. Looks like the PDK final drive ratio is 3.25 but its partially obscured in that photo uploaded. If 3.25 is correct the PDK is slightly higher geared in gears 1 to 6 and seventh is a very high cruising gear. Nuttcase said:
You need to multiply each gear ratio by the rear axle ratio for the total reduction factor. Looks like the PDK final drive ratio is 3.25 but its partially obscured in that photo uploaded. If 3.25 is correct the PDK is slightly higher geared in gears 1 to 6 and seventh is a very high cruising gear.
Good spot - so much for shorter ratios on the PDK box then!Purple Man said:
It is my understanding that PDK gearbox still delivers the longer gear ratios.
So second gear is good up to 80MPH and third gear unto 130MPH.
In other words, it is the same in speed gears as the manual until later on in the higher gears.
I believe that's incorrect. Pulled the below from a prior thread.So second gear is good up to 80MPH and third gear unto 130MPH.
In other words, it is the same in speed gears as the manual until later on in the higher gears.
The max speed in gear for the 981S manual and (PDK)
Gear / Ratio (PDK) / Max Speed (PDK) MPH
1st / 3.31 (3.91) / 49 (42)
2nd / 1.95 (2.29) / 84 (71)
3rd /1.41 (1.65) /116 (99)
4th / 1.13 (1.30) / 144 (125)
5th /.95 (1.08) / 172 (151)
6th / .81 (.88) / 201 (185)
7th / (.62) / (263)
I had another look into this. According to technical info on Porsche the final drive ratio for the 718 PDK is 3.62. not the 3.25 I thought I saw on the previous upload (obscured by the thumb snap logo) See attached sheet with the ratios multiplied out, noting that these are total reduction ratios I.e. higher ratio is a lower gear. If this is correct then the PDK is marginally lower geared in the first 6 ratios.
Even with those figures you can see that Porsche are maybe holding back the figures.
You would expect the PDK to kind of produce the figures that the 992 PDK changes at.
992 PDK
1st = 42 MPH
2nd = 64MPH
3rd = 90MPH
Does anyone know anywhere that details what the 992 Manual top gear speeds are?
You would have thought this information would be easy to find, but i've just spent an hour on the Porsche web page and come up with nothing!
You would expect the PDK to kind of produce the figures that the 992 PDK changes at.
992 PDK
1st = 42 MPH
2nd = 64MPH
3rd = 90MPH
Does anyone know anywhere that details what the 992 Manual top gear speeds are?
You would have thought this information would be easy to find, but i've just spent an hour on the Porsche web page and come up with nothing!
Thank you that is useful and more akin to how I think of gearing i.e. mph per 1,000 rpm.
As peak torque os at 5,000 to 6,800 rpm changing at peak revs seems pointless in any gear other that 1st where it puts you in 2nd gear at about 5,000 rpm.
What puzzles me is that mph per 1,000 rpm in 6th gear is shown as 24.7 (say 25) which is the same as our 2.7 L 986 in 5th (top), our ex 996 in 6th (top) and even our Abarth 595 in 5th (top). Say 3,000 at 75 mph. I thought that modern cars were longer geared than that for economy and emissions. Our 991 PDK does about 38mph/ 1,000 rpm in 7th i.e. about 2,000 rpm at 75 mph.
Have I read the chart correctly?
If the chart is correct and it is from a reputable source, what is all the fuss about long gearing in manuals?
As peak torque os at 5,000 to 6,800 rpm changing at peak revs seems pointless in any gear other that 1st where it puts you in 2nd gear at about 5,000 rpm.
What puzzles me is that mph per 1,000 rpm in 6th gear is shown as 24.7 (say 25) which is the same as our 2.7 L 986 in 5th (top), our ex 996 in 6th (top) and even our Abarth 595 in 5th (top). Say 3,000 at 75 mph. I thought that modern cars were longer geared than that for economy and emissions. Our 991 PDK does about 38mph/ 1,000 rpm in 7th i.e. about 2,000 rpm at 75 mph.
Have I read the chart correctly?
If the chart is correct and it is from a reputable source, what is all the fuss about long gearing in manuals?
996Targa said:
If the chart is correct and it is from a reputable source, what is all the fuss about long gearing in manuals?
The yellow chart above will be for the manual box. The fuss is because if you were on a great mountain road where you spend 95% of the time between 40 and 80 mph, you would never need to change out of 2nd gear. #dull
996Targa said:
If the chart is correct and it is from a reputable source, what is all the fuss about long gearing in manuals?
It's from Car and Driver magazine in the US:https://www.caranddriver.com/reviews/a32417763/202...
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