718 GT4?
01-16-2019, 04:03 PM
#5417
Don't get me wrong, the 911 is a formidable machine and it looks the part too. And it's still the daddy compared to the Cayman, image wise. I thought about a 991 T or a 992 (non GT3) but in the end, the GT4 has more appeal to me. After 4 years of daily driving in the basic 2,7, I am lusting for a more intense road car. If the hardcore nature of the GT4 means I will use it slightly less casually/daily, so be it.
01-16-2019, 04:29 PM
#5418
4,0L it is then!
Q: if it's basically the same 4,0 from the GT3, but detuned, the 420-425 HP ball park figure seems lowish, not? No doubt a good part of the lost ponies can be tuned right back in?
Q: if it's basically the same 4,0 from the GT3, but detuned, the 420-425 HP ball park figure seems lowish, not? No doubt a good part of the lost ponies can be tuned right back in?
01-16-2019, 04:35 PM
#5419
01-16-2019, 04:37 PM
#5420
It's probably the gt3 engine (read: same block) minus the exotic bits like the titanium rods. It will likely not be able to spin as high so it will have a different head and cams because the power band is different. Even if it's the CS engine + 0.2l of displacement, it should make 450hp just by virtue of the extra volume.
01-16-2019, 05:04 PM
#5422
Got to see both the Spyder and GT4 test cars in Atlanta yesterday up close during testing. Learned:
a. the CS engine capacity is 3.8L to comply with class displacement requirements mostly and that the street car will be larger and definitely N/A (I could have been told how much bigger but then they would have had to kill me).
b.-The exterior detailing is pretty much like the test mules that have been pictured so far and the aero bits are identical to those on the CS pictures that we have seen on the forum.
c.-The mules had the same GT4 wheels of old (bet they will be a new design at launch).
d.-The rear wing fits the car much better in person that it looks in pictures.
e.-It seems that the US car will sound better than the euro because we dont need the particulate filter in the exhaust
f.-Launch is due for Geneva, or so says the local cleaning lady......
Cheers
Jpr
a. the CS engine capacity is 3.8L to comply with class displacement requirements mostly and that the street car will be larger and definitely N/A (I could have been told how much bigger but then they would have had to kill me).
b.-The exterior detailing is pretty much like the test mules that have been pictured so far and the aero bits are identical to those on the CS pictures that we have seen on the forum.
c.-The mules had the same GT4 wheels of old (bet they will be a new design at launch).
d.-The rear wing fits the car much better in person that it looks in pictures.
e.-It seems that the US car will sound better than the euro because we dont need the particulate filter in the exhaust
f.-Launch is due for Geneva, or so says the local cleaning lady......
Cheers
Jpr
Were you able to hear the engine of the GT4 test vehicle by chance before they parked it?
01-16-2019, 06:52 PM
#5423
Rennlist Member
CJ mentioned that it will be a new engine, so my assumption is that it's the replacement for the 9A1 that will be used for both NA and 911 turbo applications.
He mentioned it would be bigger, but that may have been in response to Mr Lucan's statement that it would be a 3L, and I don't believe CJ has clarified his post that he meant bigger than that or the 3.8L.
He mentioned it would be bigger, but that may have been in response to Mr Lucan's statement that it would be a 3L, and I don't believe CJ has clarified his post that he meant bigger than that or the 3.8L.
01-16-2019, 06:53 PM
#5424
Racer
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01-17-2019, 01:06 PM
#5428
Weight distribution is a major issue with the 911. That's why the rear suspension needs to be so sophisticated. The fact that the engine is hanging out after the rear axle means the wheelbase will be short if you don't want a very long car. Rear wheel steering stabilizes the 911 at high speeds (wheels in same direction as fronts) and makes it deals better with the rucksack engine in slow turns. What's the point in having a rear engine (which frees space in front of the rear axle) anyway when you cannot have rear seats in a GT3? Why is the 911 RSR mid-engined?
01-17-2019, 01:21 PM
#5429
Weight distribution is a major issue with the 911. That's why the rear suspension needs to be so sophisticated. The fact that the engine is hanging out after the rear axle means the wheelbase will be short if you don't want a very long car. Rear wheel steering stabilizes the 911 at high speeds (wheels in same direction as fronts) and makes it deals better with the rucksack engine in slow turns. What's the point in having a rear engine (which frees space in front of the rear axle) anyway when you cannot have rear seats in a GT3? Why is the 911 RSR mid-engined?
Don't get me wrong, the 911 is a formidable machine and it looks the part too. And it's still the daddy compared to the Cayman, image wise. I thought about a 991 T or a 992 (non GT3) but in the end, the GT4 has more appeal to me. After 4 years of daily driving in the basic 2,7, I am lusting for a more intense road car. If the hardcore nature of the GT4 means I will use it slightly less casually/daily, so be it.
Don't get me wrong, the 911 is a formidable machine and it looks the part too. And it's still the daddy compared to the Cayman, image wise. I thought about a 991 T or a 992 (non GT3) but in the end, the GT4 has more appeal to me. After 4 years of daily driving in the basic 2,7, I am lusting for a more intense road car. If the hardcore nature of the GT4 means I will use it slightly less casually/daily, so be it.
Last edited by GoKart Mozart; 01-17-2019 at 02:17 PM. Reason: Corrected 20 cm to 20 mm
01-17-2019, 01:32 PM
#5430
Rennlist Member
The 991 RSR is primarily mid engined so they can run a great big diffusor as allowed in GTE rules. The gearbox is afaik still hanging out behind the rear axle (don't quote me on this), ok it's a automated single clutch manual and not a heavy dual clutch gearbox but the polar moment of the 991 RSR is still going to be inferior to that of a 'true' mid engine car. Now aero rules dominate most of the racing classes, that's why mid engine cars are all the vogue as diffusors play a very large part in generating downforce, especially downforce with relatively little drag. In the past where there was less aero emphasis, the braking/traction advantage a rear engine car had was able to offset to a large part the greater agility of the mid engined cars. The 911 is still probably the most successful racing platform even today after all. Race car diffusors are pretty much a complete irrelevance wrt to road cars due to ride heights....