How much performance is lost in the GT3T?
10-31-2017, 08:19 AM
#31
Hopefully not too OT: Could someone please compare/explain chassis characteristics between .2GT3 and a 981GTS with X73 chassis?
My X73 981GTS feels from own experience similar to a 981GT4 with its PASM in Sport mode, so pretty stiff and useable on track. I use it mainly for coffee/back road runs but normally manage to squeeze in 2-4 track days every year.
Is the GT3 another step in damper stiffness, spring rates etc? I'm asking because with the Touring version I am seeing a reason for trading up the Porsche ladder, but I'm wary of giving away much more road useability compared to the X73 GTS.
Thanks in advance!
My X73 981GTS feels from own experience similar to a 981GT4 with its PASM in Sport mode, so pretty stiff and useable on track. I use it mainly for coffee/back road runs but normally manage to squeeze in 2-4 track days every year.
Is the GT3 another step in damper stiffness, spring rates etc? I'm asking because with the Touring version I am seeing a reason for trading up the Porsche ladder, but I'm wary of giving away much more road useability compared to the X73 GTS.
Thanks in advance!
You know that the GT3 has a manual too, right?
10-31-2017, 08:31 AM
#32
Burning Brakes
And yes - it's also because it has M/T that I'm interested in it. A 991.1GT3 (w PDK only) was therefore never considered. My CGTS is M/T obviously.
So the question was, how will the GT3T work on the road? Will I loose my dental fillings or am I already "broken in" being used to and enjoying my 981 X73?
10-31-2017, 02:20 PM
#33
Rennlist Member
Maybe I didn't make myself clear. I have a CGTS w X73. I specifically chose the GTS over GT4 because I didn't want the "track focus" that the GT4 communicates. Same with the GT3. For me, GT3 with wing is not interesting, but with the Touring Package - hell yes. A large N/A engine with 9k rev limit together with the stealthy apperance => absolutely my bag.
And yes - it's also because it has M/T that I'm interested in it. A 991.1GT3 (w PDK only) was therefore never considered. My CGTS is M/T obviously.
So the question was, how will the GT3T work on the road? Will I loose my dental fillings or am I already "broken in" being used to and enjoying my 981 X73?
And yes - it's also because it has M/T that I'm interested in it. A 991.1GT3 (w PDK only) was therefore never considered. My CGTS is M/T obviously.
So the question was, how will the GT3T work on the road? Will I loose my dental fillings or am I already "broken in" being used to and enjoying my 981 X73?
It will still be stiffer than your 981 yes. Not unusable by any means, but you're talking about hard mounts vs rubber in a few places and stiffer spring and shock rates.
10-31-2017, 02:39 PM
#34
Rennlist Member
Maybe I didn't make myself clear. I have a CGTS w X73. I specifically chose the GTS over GT4 because I didn't want the "track focus" that the GT4 communicates. Same with the GT3. For me, GT3 with wing is not interesting, but with the Touring Package - hell yes. A large N/A engine with 9k rev limit together with the stealthy apperance => absolutely my bag.
And yes - it's also because it has M/T that I'm interested in it. A 991.1GT3 (w PDK only) was therefore never considered. My CGTS is M/T obviously.
So the question was, how will the GT3T work on the road? Will I loose my dental fillings or am I already "broken in" being used to and enjoying my 981 X73?
And yes - it's also because it has M/T that I'm interested in it. A 991.1GT3 (w PDK only) was therefore never considered. My CGTS is M/T obviously.
So the question was, how will the GT3T work on the road? Will I loose my dental fillings or am I already "broken in" being used to and enjoying my 981 X73?
10-31-2017, 02:51 PM
#35
Addict
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10-31-2017, 02:57 PM
#36
Three Wheelin'
.....without the wing? Obviously on a track the wing will help and balance the whole package, but how about for street use? Do the lack of the air scoops under the wing mean less air at speed to the 'Touring' engine? I would think, as with the R that Porsche has tried to make the package as good as possible. Has anyone done an analysis or does Porsche have any comment on this? I wonder how much slower the GT3T would be around the Nurburgring.
Jim
Jim
10-31-2017, 08:19 PM
#37
Rennlist Member
Thread Starter
Jim
10-31-2017, 08:28 PM
#38
Rennlist Member
Thread Starter
Touring car will have less down force at high speeds, like on the back straight at Road Atlanta braking into 10A from 160 mph and the back end gets a little light, or through turn 12 at 110 mph. Or on the derestricted autobahn at 180 mph. Car will feel less planted in those situations.
But blasting down your local off ramp (going straight) at peak speed of 120 mph it will feel the same as a winged version.
A pro driver will be fastest on a track in the winged version with PDK. For the rest of us it's a wash and generally of no consequence.
But blasting down your local off ramp (going straight) at peak speed of 120 mph it will feel the same as a winged version.
A pro driver will be fastest on a track in the winged version with PDK. For the rest of us it's a wash and generally of no consequence.
J
10-31-2017, 09:40 PM
#39
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10-31-2017, 10:03 PM
#40
Race Car
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10-31-2017, 11:45 PM
#42
SJW, a Carin' kinda guy
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It’s not that little. One would have to do wind tunnel testing to prove this out, but based on the published specs for trap times which are .1 second lower for a touring (0-100 I think I can’t remember), the pop up wing produces more drag than the fixed wing. Whether it produces less downforce or not, I don’t know, but I suspect it is close to the fixed wing given the angle of attack on the touring wing (it goes way up like on a cab) and the gurney flap. Otherwise porsche would have changed the aero on the front to balance the car and they did not.
10-31-2017, 11:46 PM
#43
11-01-2017, 12:33 AM
#45
SJW, a Carin' kinda guy
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The little edge at the back. Facinating wiki article on it.
https://en.m.wikipedia.org/wiki/Gurney_flap
https://en.m.wikipedia.org/wiki/Gurney_flap