E diff vs Mechanical lsd on 991.2 gt3
04-02-2017, 10:29 PM
#31
Addict
Rennlist Member
Rennlist Member
04-05-2017, 03:10 PM
#33
Rennlist Member
Thread Starter
So the pdk car is much quicker and puts the power down better - just as I thought. I think that engineering two versions of a car has become cost prohibitive. I can't see Porsche making the manual transmission, purely mechanical limited slip, albeit slower car for much longer. The electronics are so integrated to maximize performance. Ferrari has long since abandoned this. This could be the last slow, enjoy the scenery,version of the gt3. I wish they had eliminated the rear wheel steering and torque vectoring on the manual transmission car, to make it as slow as possible.
04-05-2017, 03:26 PM
#34
Race Director
So the pdk car is much quicker and puts the power down better - just as I thought. I think that engineering two versions of a car has become cost prohibitive. I can't see Porsche making the manual transmission, purely mechanical limited slip, albeit slower car for much longer. The electronics are so integrated to maximize performance. Ferrari has long since abandoned this. This could be the last slow, enjoy the scenery,version of the gt3. I wish they had eliminated the rear wheel steering and torque vectoring on the manual transmission car, to make it as slow as possible.
04-05-2017, 03:56 PM
#35
Race Director
So the pdk car is much quicker and puts the power down better - just as I thought. I think that engineering two versions of a car has become cost prohibitive. I can't see Porsche making the manual transmission, purely mechanical limited slip, albeit slower car for much longer. The electronics are so integrated to maximize performance. Ferrari has long since abandoned this. This could be the last slow, enjoy the scenery,version of the gt3. I wish they had eliminated the rear wheel steering and torque vectoring on the manual transmission car, to make it as slow as possible.
04-05-2017, 04:11 PM
#36
Rennlist Member
Also helps to be a smaller car. The much bigger 991 wheelbase vs the 997 wheelbase really demands the rear wheel steering for agility. I really miss it whenever I drive a friends 991.1 GTS that doesn't have it, because it wasn't offered on the 991.1 carreras. I didn't think the GT4 needed it, but the GT3 does needs it.
Disagree. Porsche has realized just how important a niche is the RWD, NA manual GT3, a true drivers car, that no higher end manufacturer offers anymore, as Audi, Mercedes, BMW, Ferrari, Mclaren, Lambo, Alfa, etc no longer offer a powerful NA, RWD, lightweight manual sports car.
Porsche now owns this niche worldwide and will sell plenty of manual GT3s to cover their development costs as they will be making manual NA GT3s for the next twenty years at least.
So the pdk car is much quicker and puts the power down better - just as I thought. I think that engineering two versions of a car has become cost prohibitive. I can't see Porsche making the manual transmission, purely mechanical limited slip, albeit slower car for much longer. The electronics are so integrated to maximize performance. Ferrari has long since abandoned this. This could be the last slow, enjoy the scenery,version of the gt3. I wish they had eliminated the rear wheel steering and torque vectoring on the manual transmission car, to make it as slow as possible.
Porsche now owns this niche worldwide and will sell plenty of manual GT3s to cover their development costs as they will be making manual NA GT3s for the next twenty years at least.
04-05-2017, 10:45 PM
#37
Nordschleife Master
04-06-2017, 11:21 AM
#39
Rennlist Member
It would make sense that the LSD in the GT3 would vary slightly from the R in terms of locking factor, given they would expect it to visit the track more often. But I don't expect the actual internals to differ any. I'm guessing ramp angles will be the only difference.
However, I still don't expect much from this unit either. Let's hope we are all wrong.
However, I still don't expect much from this unit either. Let's hope we are all wrong.
04-13-2017, 02:11 AM
#40
Rennlist Member
Paging Matt! GT4 VS R VS R with wing..
Matt will know.
Now, if they would just add aero and motor!
I cant believe my PDKS hasn't fallen out of the car yet!
Right! Plus the RWS and suspension is different in the RS so why wouldn't the LSD be?
500HP, 9000RPM, stickier tires then ever is a lot to take for the synchro's, clutch and LSD. The last time pretty much all 3 failed. If you added LSD, it added temps, making it worse for the gearbox and clutch.. I'm hoping for a radical surprise hat trick like the new heads on the GT3! Porsche can do it, if they decide to.
Matt will know.
Now, if they would just add aero and motor!
I cant believe my PDKS hasn't fallen out of the car yet!
It would make sense that the LSD in the GT3 would vary slightly from the R in terms of locking factor, given they would expect it to visit the track more often. But I don't expect the actual internals to differ any. I'm guessing ramp angles will be the only difference.
However, I still don't expect much from this unit either. Let's hope we are all wrong.
However, I still don't expect much from this unit either. Let's hope we are all wrong.
500HP, 9000RPM, stickier tires then ever is a lot to take for the synchro's, clutch and LSD. The last time pretty much all 3 failed. If you added LSD, it added temps, making it worse for the gearbox and clutch.. I'm hoping for a radical surprise hat trick like the new heads on the GT3! Porsche can do it, if they decide to.