991.2 PDK and Manual - Manual felt a lot slower
04-10-2019, 03:23 PM
#16
04-10-2019, 03:48 PM
#17
Rennlist Member
I've driven both and have a manual 991.2. The manual shouldn't be significantly slower around town. You (and I as well) need to practice manual skills and utilizing the power band of the higher revving engine. Also would also bet a little placebo from the louder exhaust.
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Larry Cable (06-20-2023)
04-10-2019, 03:48 PM
#18
That dealer looks familiar. 
The orange car is a Rennlisters former car. ACsatco. While an exhaust might make a little difference in power, it can make the car sound faster, so if you are not actually timing it, it can feel faster. I doubt there is something wrong with the car as if it was way down on power it would have a check engine light. But I am sure they would run a DME scan if you had concerns.
The orange car is a Rennlisters former car. ACsatco. While an exhaust might make a little difference in power, it can make the car sound faster, so if you are not actually timing it, it can feel faster. I doubt there is something wrong with the car as if it was way down on power it would have a check engine light. But I am sure they would run a DME scan if you had concerns.Haha. I liked the gray with the CF panels. The orange all over the place looked tacky imo.
Why is that a surprise
? I would not dump 200k on a used car without driving it first. Besides this is a GT3, not a Pagani or a Senna. lol!Can't be the same since the pdk has 7 gears. That said I have had a DCT M3 and current ride is a 6 speed M3. They pull the same except have to shift a littler early on the DCT.
It all depends on what gear you're doing a pull in, in the PDK it will downshift to the optimal gear for power. If you're in a manual and didn't downshift enough (those first few gears are long), you might have been really low in the rev range and the car will feel a lot slower as these engines need to be in the upper revs in order to make power.
That's good to know as I am leaning towards a manual.
04-10-2019, 03:50 PM
#19
I've driven both and have a manual 991.2. The manual shouldn't be significantly slower around town. You (and I as well) need to practice manual skills and utilizing the power band of the higher revving engine. Also would also bet a little placebo from the louder exhaust.
04-10-2019, 07:15 PM
#21
Drifting
I doubt a center delete will make any increase in power. If anything, it might actually decrease power. The handful of vendors who have posted dynos showing significant gains from a CENTER BYPASS... I'm skeptical.
I actually think it's the other way around. The car sounds faster, when it's not. So to me it makes it feel slower. Just my opinion 
No. The ratios are different and the PDK is 7 gears, manual is 6.
He said he was in manual mode. In second gear. He's not gonna downshift to 1st for a pull in gear, while rolling.
He said he was in manual mode. In second gear. He's not gonna downshift to 1st for a pull in gear, while rolling.
This is what I've heard/read as well. Having driving a few PDK GT3s and a .2 GT3RS, my immediate thought was that the manual is faster WHILE IN GEAR, doing a pull. But the PDK can shift so much faster than I could ever hope to do, that any difference in power/acceleration will more than be made up for by the PDK. The added drag on the RS might have been a factor as well.
It's been discussed to death in a bunch of other threads.
it can make the car sound faster, so if you are not actually timing it, it can feel faster.
No. The ratios are different and the PDK is 7 gears, manual is 6.
It's been discussed to death in a bunch of other threads.
04-10-2019, 07:20 PM
#22
Rennlist Member
Driven both a manual and my own personal PDK 2018 GT3s. Manual GT3 felt about 5% more powerful in same gear at same RPM, to due less parasitic power loss and 40lb weight loss.
I'd drive another manual, and if doesn't feel as strong or stronger than the PDK, then your butt dyno is off. If the second manual GT3 you drive feels as strong or stronger as the PDK, then I would avoid the first manual you drove.
I'd drive another manual, and if doesn't feel as strong or stronger than the PDK, then your butt dyno is off. If the second manual GT3 you drive feels as strong or stronger as the PDK, then I would avoid the first manual you drove.
The following users liked this post:
Larry Cable (06-20-2023)
The following users liked this post:
Larry Cable (06-20-2023)
04-10-2019, 09:37 PM
#26
Drifting
How does one account for different gear ratios between the two when interpreting dyno charts? Do you input the actual gear ratios into the dyno software?
04-10-2019, 10:01 PM
#27
The pdk car may have had the exhaust valve vacuum lines pulled, which would have made a big difference below 4k rpm. The Porsche stock software doesn't open those valves until fairly high up in the rpm curve, whether in sport mode or not. The result is a noticeable increase in pull as soon as the valves open.
04-10-2019, 11:38 PM
#28
The pdk car may have had the exhaust valve vacuum lines pulled, which would have made a big difference below 4k rpm. The Porsche stock software doesn't open those valves until fairly high up in the rpm curve, whether in sport mode or not. The result is a noticeable increase in pull as soon as the valves open.
04-11-2019, 04:09 AM
#30
Race Director
PDK some times feels faster because the car sort of lurches forward during gear up-shifts( always perfect shifts) where the Manual only rewards perfect shifts but also hinders less than perfect ones. It takes some time getting used the the Clutch ect for the Manual but once one gets a hang of it that all changes.