991.2 PDK and Manual - Manual felt a lot slower
06-20-2023, 07:11 PM
#46
Rennlist Member
butt dynos and/or accelerometers are by definition "inaccurate: (it "felt" sluggish...) timings.measurements pls, same day, same driver, same distance etc... otherwise this is a "one that got away" discussion 
The following users liked this post:
JCviggen (06-21-2023)
06-21-2023, 01:03 AM
#47
Rennlist Member
Seat of the pants PDK feeling faster is probably due to the "Lightning Shift" surge which occurs over 8k when flat out, which feels opposite to a manual shift:
...In addition, lightning shifts are implemented with a torque enhancement to improve driving performance. The dynamic torque enhancement uses the momentum and rotational energy that is present in the entire drive system during a gear change. In this process, the rotational energy (mass moment of inertia), which is stored primarily in the crankshaft, clutch module and gear wheel sets, is decelerated strongly while changing gear. This causes a brief additional torque boost in the drive system and allows a further improvement in the acceleration potential...
Last edited by AndrewLakes; 06-21-2023 at 02:32 AM.