GT4 RS
08-05-2015, 03:16 PM
#166
My understanding is that it is the same gearbox but with different ratios depending on application. I could be mistaken and maybe it isn't an "S" gearbox. The piece about the PTV+ is accurate though regardless of the name of the family of gearboxes. It's a completely different casting to accomodate what you guys are calling the E-diff. I believe there is only one of those castings being used across all cars using that LSD.
If they were to offer a high end PDK with PTV+ for the Cayman/Boxster family it would require a new casting because of the mid-engine. There are already 2 castings for these cars, one for PTV and one for non-PTV. PTV+ would require a 3rd gearbox case.
If they were to offer a high end PDK with PTV+ for the Cayman/Boxster family it would require a new casting because of the mid-engine. There are already 2 castings for these cars, one for PTV and one for non-PTV. PTV+ would require a 3rd gearbox case.
08-05-2015, 03:25 PM
#167
Drifting
A 991 transmission needs to be turned around and flipped upside down to work in a Cayman and that's why when you put a 911 motor in a Cayman, the motor is the only thing 911 and every other single thing is still Cayman like exhaust, axles, gearbox so that it all lines up. On the PDK, when the trans is in a 991 or a 981 the LSD is still on the same side of the car so they can't be rotated and flipped.
No worries. I've encountered the same difficulty conveying tone in forum posts, which is why I now use emoticons more frequently even though I'm not really an emoticon guy in real life.
08-05-2015, 03:47 PM
#168
08-05-2015, 05:45 PM
#169
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While we have done 3 981 PDKs this year, 2 with the 991 3.8L and 1 with the 991 Power Kit, we have yet to retrofit it backwards into a new GT4. It cant be worse than upgrading the Rolex GX car 1st from EFI 987.1 and then to 987.2 DFI and then to PDK. We got everything working again as stock.
I think only you will be able to decide if it's worth it but I will send you a PM for sake of discussion and information.
08-05-2015, 07:04 PM
#170
I was just curious as to the actual number of deflated GT4 enthusiasts that had their hearts set on PDK.
While we have done 3 981 PDKs this year, 2 with the 991 3.8L and 1 with the 991 Power Kit, we have yet to retrofit it backwards into a new GT4. It cant be worse than upgrading the Rolex GX car 1st from EFI 987.1 and then to 987.2 DFI and then to PDK. We got everything working again as stock.
I think only you will be able to decide if it's worth it but I will send you a PM for sake of discussion and information.
While we have done 3 981 PDKs this year, 2 with the 991 3.8L and 1 with the 991 Power Kit, we have yet to retrofit it backwards into a new GT4. It cant be worse than upgrading the Rolex GX car 1st from EFI 987.1 and then to 987.2 DFI and then to PDK. We got everything working again as stock.
I think only you will be able to decide if it's worth it but I will send you a PM for sake of discussion and information.
I thought the whole point of the GT4 was for Porsche to offer the public a manual transmission equipped "GT" car.
08-05-2015, 07:34 PM
#171
Nordschleife Master
As for the GT3 part of your question? A lot of guys prefer the midengine platform to the rear. Doesn't make sense to some hardcore 911 guys, but there is definitely a group of us who think that the 911 always should have been a midengine car from the early days.
08-05-2015, 07:41 PM
#172
Pro
I guess this is as good a time to ask as any; who here actually wanted a PDK in the GT4, raise your hand?
The issue is that the 991 PDK doesn't work in the 981 so therefore a decision has to be made to invest in maybe a PDK specific for the 981 3.4L. I would be shocked if the car had the electronic diff which probably needs to be smarter for the rear wheel steering available on the GT3 that should never ever ever be installed on a mid engine Cayman.
The issue is that the 991 PDK doesn't work in the 981 so therefore a decision has to be made to invest in maybe a PDK specific for the 981 3.4L. I would be shocked if the car had the electronic diff which probably needs to be smarter for the rear wheel steering available on the GT3 that should never ever ever be installed on a mid engine Cayman.
Of course there are downsides : additional weight, complexity, unknown longevity/reliability, running costs, etc.
08-05-2015, 07:45 PM
#173
Pro
08-05-2015, 07:56 PM
#174
Nordschleife Master
The weight is negligible, the complexity is non-existent, and Porsche first introduced one almost 30 years ago on the 959. It is not actually a new technology. You don't see it more because its not really needed in a modern street car and in racing most classes outlaw it. They outlaw it because it works that well.
08-05-2015, 08:02 PM
#175
Nordschleife Master
GT4 RS
IMO,the beauty of the GT4 is that it has a manual transmission. The GT4 RS would be cool with a manual too. Or offer both. But I don't think Porsche will do both. They say it is not cost effective. Personally I wouldn't be interested in the GT department Cayman parts bin special without a manual. After thousands of pages of arguments back and forth,I still don't understand the purpose of an automatic transmission in a sports car. And I never will... 
08-05-2015, 09:10 PM
#176
Pro
The weight is negligible, the complexity is non-existent, and Porsche first introduced one almost 30 years ago on the 959. It is not actually a new technology. You don't see it more because its not really needed in a modern street car and in racing most classes outlaw it. They outlaw it because it works that well.
08-05-2015, 09:51 PM
#177
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Some die hard Cayman fans are also PDK fans, that's all. I'm not pushing PDK retrofits as much as I'm just curious because i know there are a lot of folks that like PDK for purposes of daily driving and was curious if there are those that would forego a 6-spd GT4 if a PDK version was on the horizon.
08-05-2015, 09:52 PM
#178
Pro
I had a similar exchange with a member earlier in this thread. If it were me, I would get a GTS with PDK and then have BGB install a 3.8 in the car. The guy I was talking to wanted all the GT3 based underpinnings that are on a GT4.
As for the GT3 part of your question? A lot of guys prefer the midengine platform to the rear. Doesn't make sense to some hardcore 911 guys, but there is definitely a group of us who think that the 911 always should have been a midengine car from the early days.
As for the GT3 part of your question? A lot of guys prefer the midengine platform to the rear. Doesn't make sense to some hardcore 911 guys, but there is definitely a group of us who think that the 911 always should have been a midengine car from the early days.
08-05-2015, 10:12 PM
#179
The words "sports" and "automatic" don't seem to go together.
08-05-2015, 10:25 PM
#180
Pro
I whole heartedly agree, I never understood the concept of putting an automatic transmission into a sports car, and the only reason I can see for buying one would be if I got caught in lots of traffic on a regular basis, and thankfully I dont.
The words "sports" and "automatic" don't seem to go together.
The words "sports" and "automatic" don't seem to go together.
(This from a die hard manual fan who could not get a manual GT4 at the agreed price).
Drive something like a F458 or a 991GT3 at the track and imagine trying to keep up shifting manually with engines that just rev up the powerband like there is no tomorrow.