View Poll Results: 991.2 GT3 - Will you be ordering Manual or PDK?
MANUAL
226
60.75%
PDK
146
39.25%
Voters: 372. You may not vote on this poll
991.2 GT3 - Will you be ordering Manual or PDK?
#46
Perhaps Porsche should get it right and produce a real hard core dog box and heavy duty clutch coupled with a light weight fly wheel - this will definitely keep the purists happy . The reality is it wouldn't, because most people wouldn't be able to drive a 500hp car with a line like this (most people just stall). Thus the manual, as offered, is a compromise between old school hard core performance (dog box) and modern performance (PDK). It is a narrow window, a small market that neither represents a true performance manual or true modern performance transmission.
The Porsche manual, being cable actuated is a bit.........ahem soft coq .......and is very much a compromise ..........think about it^^^^^^ and the broader market quite probably understands this, at least at a level to generate a trend. Hence PDKs dominate production, the market leads and lags but is never wrong over the long term.
Last edited by randr; 03-16-2017 at 10:41 AM.
#47
Nordschleife Master
Many are missing the point. Old Porsches with a manual are great,I'm glad many are keeping them whenever they want to satisfy their " shifting crave ". But please bear in mind they are nowhere near the new manual cars. Those that have driven the GT4 know I'm talking about. As with everything that Porsche makes,the new one is simply better. Please don't try to justify anything. Nobody has driven the new GT3,let alone one with a manual. I am willing to bet the farmhouse this will be better than anything manual Porsche has produced. Anyone willing to bet against me?
Mark Webber is a great guy. He works for Porsche. So does Rohrl. They will never use a new GT3 with a manual like I do. As a matter of fact,they won't use it the same as 80% of us will.
Mark Webber is a great guy. He works for Porsche. So does Rohrl. They will never use a new GT3 with a manual like I do. As a matter of fact,they won't use it the same as 80% of us will.
#48
The Porsche manual, being cable actuated is a bit.........ahem soft coq .......and is very much a compromise ..........think about it^^^^^^ and the broader market quite probably understands this, at least at a level to generate a trend. Hence PDKs dominate production, the market leads and lags but is never wrong over the long term.
#49
Many are missing the point. Old Porsches with a manual are great,I'm glad many are keeping them whenever they want to satisfy their " shifting crave ". But please bear in mind they are nowhere near the new manual cars. Those that have driven the GT4 know I'm talking about. As with everything that Porsche makes,the new one is simply better. Please don't try to justify anything. Nobody has driven the new GT3,let alone one with a manual. I am willing to bet the farmhouse this will be better than anything manual Porsche has produced. Anyone willing to bet against me?
Mark Webber is a great guy. He works for Porsche. So does Rohrl. They will never use a new GT3 with a manual like I do. As a matter of fact,they won't use it the same as 80% of us will.
Mark Webber is a great guy. He works for Porsche. So does Rohrl. They will never use a new GT3 with a manual like I do. As a matter of fact,they won't use it the same as 80% of us will.
The logic behind getting a manual is more involvement, so if the new manual takes away some involvement then some people will say it's not better when compared to non-rev match / non-no lift manuals.
Like you said, no one really knows if and/or how the new GT3 manual is different, but regardless and assuming it offers more 'automated' features.
#50
Nordschleife Master
Originally Posted by ChicagoM4
Define better?
The logic behind getting a manual is more involvement, so if the new manual takes away some involvement then some people will say it's not better when compared to non-rev match / non-no lift manuals.
Like you said, no one really knows if and/or how the new GT3 manual is different, but regardless and assuming it offers more 'automated' features.
The logic behind getting a manual is more involvement, so if the new manual takes away some involvement then some people will say it's not better when compared to non-rev match / non-no lift manuals.
Like you said, no one really knows if and/or how the new GT3 manual is different, but regardless and assuming it offers more 'automated' features.
Of course naysayers will spin Porsche's approach to prove their point : no lift shifting and rev matching. Luckily Porsche is smarter than that and so are their customers : they all can be turned off...traction control included. And then you're on your own : and that's what makes Porsche great! An old school 6 speed in a state of the art 9K RPM engine,modern suspension,RWS and the best brakes in the industry. That's BETTER!
#51
It's always better as in the way it works as a package : engine,transmission,suspension,chassis,brakes.
Of course naysayers will spin Porsche's approach to prove their point : no lift shifting and rev matching. Luckily Porsche is smarter than that and so are their customers : they all can be turned off...traction control included. And then you're on your own : and that's what makes Porsche great! An old school 6 speed in a state of the art 9K RPM engine,modern suspension,RWS and the best brakes in the industry. That's BETTER!
Of course naysayers will spin Porsche's approach to prove their point : no lift shifting and rev matching. Luckily Porsche is smarter than that and so are their customers : they all can be turned off...traction control included. And then you're on your own : and that's what makes Porsche great! An old school 6 speed in a state of the art 9K RPM engine,modern suspension,RWS and the best brakes in the industry. That's BETTER!
Porsche is purely doing this to appeal to a wider audience. Why can't they reserve the GT3 to have a actual old-school manual. What's the point of adding rev-match and no-lift if, like you said, Porsche customers will just turn them off. It;s not like there's a secret routine to turn them off and you don't have to be that smart. lol
#52
Rennlist Member
I'll take the PDKS in this corner of the country.
On twisty roads I like a louder, lower HP manual, but there aren't any twisty roads here.
We know the manual will be slower on track compared to the PDKS car. There is personal preference but what about wear and maintenance?
I have not had overrevs in manual GT3's but PDKS eliminates the risk of a money shift, or at least some overrevs. Having overrevs from hitting the rev limiter in a 997 GT3 seems a fable to me.
I've hit the rev limiters in all GT3 numerous times, including (Specially) the 991RS. I'll do a DME read out soon @16,000 miles.
Auto blip in the GT4, R and 991.2 GT3 will save on clutch wear, I suppose.
997's need the uprated clutch and pressure plate from the 4.0 and still they will fail (Not wear) from heat cycles, I wonder if this is resolved?
The 997s' throw out bearing, fork and synchro's really didn't like 3-2 and 2-3 shifts when track hot, or when cold.
How does the R and GT4 shift in comparison?
Lets see what happens on the 991.2 manual with 500 HP and 7000RPM down shifts. I'd keep the auto blipper on..
What about LSD?
Do manual GT4, R and 991.2 GT3 wear out the diff quickly like on the 997's?
At least you can tune it to your liking and local track. Anyone doing this on the GT4 or R yet?
Seems we are stuck with OEM lockup in the PDKS with the E diff.
How does the E-diff wear on a PDK car? Anyone wear one out on the GT3 or RS?
How does the elimination of variable E-diff with torque vectoring affect the manual cars handling? I think that perhaps more lap time is lost due to losing the E-diff than due to lost time shifting and the need to stay in gear when cornering on the limit.
Maintenance?
I insisted on the PDKS oil change for the first year and 10,000 mile service at the local Porsche dealership, I think the largest in the country.
At first they refused, I was the first car they have ever done, took a week to get the parts..
What if you spin a PDKS? I'm used to "two feet in" to save the manual gearbox/clutch.
I haven't spun the PDKS RS yet but does the car know its spinning and declutch?
Or are we supposed to pull in both flappies to declutch the box?
Has anyone spun? Does the car stay running? In neutral, or in gear?
I cant imagine the gearbox liking going from high speed, high RPM forwards to high speed, high or low RPM backwards in gear.
If the car stays in gear and or stalls, I can see that being a problem for gearbox life.
On twisty roads I like a louder, lower HP manual, but there aren't any twisty roads here.
We know the manual will be slower on track compared to the PDKS car. There is personal preference but what about wear and maintenance?
I have not had overrevs in manual GT3's but PDKS eliminates the risk of a money shift, or at least some overrevs. Having overrevs from hitting the rev limiter in a 997 GT3 seems a fable to me.
I've hit the rev limiters in all GT3 numerous times, including (Specially) the 991RS. I'll do a DME read out soon @16,000 miles.
Auto blip in the GT4, R and 991.2 GT3 will save on clutch wear, I suppose.
997's need the uprated clutch and pressure plate from the 4.0 and still they will fail (Not wear) from heat cycles, I wonder if this is resolved?
The 997s' throw out bearing, fork and synchro's really didn't like 3-2 and 2-3 shifts when track hot, or when cold.
How does the R and GT4 shift in comparison?
Lets see what happens on the 991.2 manual with 500 HP and 7000RPM down shifts. I'd keep the auto blipper on..
What about LSD?
Do manual GT4, R and 991.2 GT3 wear out the diff quickly like on the 997's?
At least you can tune it to your liking and local track. Anyone doing this on the GT4 or R yet?
Seems we are stuck with OEM lockup in the PDKS with the E diff.
How does the E-diff wear on a PDK car? Anyone wear one out on the GT3 or RS?
How does the elimination of variable E-diff with torque vectoring affect the manual cars handling? I think that perhaps more lap time is lost due to losing the E-diff than due to lost time shifting and the need to stay in gear when cornering on the limit.
Maintenance?
I insisted on the PDKS oil change for the first year and 10,000 mile service at the local Porsche dealership, I think the largest in the country.
At first they refused, I was the first car they have ever done, took a week to get the parts..
What if you spin a PDKS? I'm used to "two feet in" to save the manual gearbox/clutch.
I haven't spun the PDKS RS yet but does the car know its spinning and declutch?
Or are we supposed to pull in both flappies to declutch the box?
Has anyone spun? Does the car stay running? In neutral, or in gear?
I cant imagine the gearbox liking going from high speed, high RPM forwards to high speed, high or low RPM backwards in gear.
If the car stays in gear and or stalls, I can see that being a problem for gearbox life.
#53
This is one reason why I am getting the PDKS. Slow 1M with real manual tranny and fast GT3 with one of the best dual clutch systems.
#54
Rennlist Member
I'll take the PDKS in this corner of the country.
On twisty roads I like a louder, lower HP manual, but there aren't any twisty roads here.
We know the manual will be slower on track compared to the PDKS car. There is personal preference but what about wear and maintenance?
I have not had overrevs in manual GT3's but PDKS eliminates the risk of a money shift, or at least some overrevs. Having overrevs from hitting the rev limiter in a 997 GT3 seems a fable to me.
I've hit the rev limiters in all GT3 numerous times, including (Specially) the 991RS. I'll do a DME read out soon @16,000 miles.
Auto blip in the GT4, R and 991.2 GT3 will save on clutch wear, I suppose.
997's need the uprated clutch and pressure plate from the 4.0 and still they will fail (Not wear) from heat cycles, I wonder if this is resolved?
The 997s' throw out bearing, fork and synchro's really didn't like 3-2 and 2-3 shifts when track hot, or when cold.
How does the R and GT4 shift in comparison?
Lets see what happens on the 991.2 manual with 500 HP and 7000RPM down shifts. I'd keep the auto blipper on..
What about LSD?
Do manual GT4, R and 991.2 GT3 wear out the diff quickly like on the 997's?
At least you can tune it to your liking and local track. Anyone doing this on the GT4 or R yet?
Seems we are stuck with OEM lockup in the PDKS with the E diff.
How does the E-diff wear on a PDK car? Anyone wear one out on the GT3 or RS?
How does the elimination of variable E-diff with torque vectoring affect the manual cars handling? I think that perhaps more lap time is lost due to losing the E-diff than due to lost time shifting and the need to stay in gear when cornering on the limit.
Maintenance?
I insisted on the PDKS oil change for the first year and 10,000 mile service at the local Porsche dealership, I think the largest in the country.
At first they refused, I was the first car they have ever done, took a week to get the parts..
What if you spin a PDKS? I'm used to "two feet in" to save the manual gearbox/clutch.
I haven't spun the PDKS RS yet but does the car know its spinning and declutch?
Or are we supposed to pull in both flappies to declutch the box?
Has anyone spun? Does the car stay running? In neutral, or in gear?
I cant imagine the gearbox liking going from high speed, high RPM forwards to high speed, high or low RPM backwards in gear.
If the car stays in gear and or stalls, I can see that being a problem for gearbox life.
On twisty roads I like a louder, lower HP manual, but there aren't any twisty roads here.
We know the manual will be slower on track compared to the PDKS car. There is personal preference but what about wear and maintenance?
I have not had overrevs in manual GT3's but PDKS eliminates the risk of a money shift, or at least some overrevs. Having overrevs from hitting the rev limiter in a 997 GT3 seems a fable to me.
I've hit the rev limiters in all GT3 numerous times, including (Specially) the 991RS. I'll do a DME read out soon @16,000 miles.
Auto blip in the GT4, R and 991.2 GT3 will save on clutch wear, I suppose.
997's need the uprated clutch and pressure plate from the 4.0 and still they will fail (Not wear) from heat cycles, I wonder if this is resolved?
The 997s' throw out bearing, fork and synchro's really didn't like 3-2 and 2-3 shifts when track hot, or when cold.
How does the R and GT4 shift in comparison?
Lets see what happens on the 991.2 manual with 500 HP and 7000RPM down shifts. I'd keep the auto blipper on..
What about LSD?
Do manual GT4, R and 991.2 GT3 wear out the diff quickly like on the 997's?
At least you can tune it to your liking and local track. Anyone doing this on the GT4 or R yet?
Seems we are stuck with OEM lockup in the PDKS with the E diff.
How does the E-diff wear on a PDK car? Anyone wear one out on the GT3 or RS?
How does the elimination of variable E-diff with torque vectoring affect the manual cars handling? I think that perhaps more lap time is lost due to losing the E-diff than due to lost time shifting and the need to stay in gear when cornering on the limit.
Maintenance?
I insisted on the PDKS oil change for the first year and 10,000 mile service at the local Porsche dealership, I think the largest in the country.
At first they refused, I was the first car they have ever done, took a week to get the parts..
What if you spin a PDKS? I'm used to "two feet in" to save the manual gearbox/clutch.
I haven't spun the PDKS RS yet but does the car know its spinning and declutch?
Or are we supposed to pull in both flappies to declutch the box?
Has anyone spun? Does the car stay running? In neutral, or in gear?
I cant imagine the gearbox liking going from high speed, high RPM forwards to high speed, high or low RPM backwards in gear.
If the car stays in gear and or stalls, I can see that being a problem for gearbox life.
2. Like you said, if you go with the MT, you are giving up the E-LSD. What are they substituting it with? The same clutch-type unit that wears out in the 997? An updated version that still wears out, but takes a bit longer? The service life will certainly be shorter than the E-LSD versions in the 991.1 generation cars. I've yet to see one issue with the LSD in the 991.1 cars, while the 997 forums see this type failure semi-commonly on the tracked cars. The rebuild is also very expensive.
3. Maintenance on the manual itself. We are talking about a 9k rpm motor. What have they done to make sure the syncros aren't going to wear out quickly accelerating/decelerating the gear packs up and down to such high rpm? Is it going to develop issues with second gear decel pop-out likely nearly every other manual gearbox before it has had occasional issues with? What about the clutch? As you've already stated, the uprated 4.0L hardware is better, but it still just fails from heat cycles on the track.
It is hilarious to me that the same people who call the motor in the 991.1 GT3 a "time bomb" because it will require a motor-out service to replace relatively easily replaceable cams and finger followers for wear (possibly only needed to be done once with updated parts) are totally Ok with a similar service interval on an engine and transmission removal clutch/pressure plate/ flywheel replacement, which may very well cost MORE than the service needed on the 991.1 top end, and will need to be repeated a lot more than once over the lifetime of the car.
The fact that auto rev match and "no lift to shift" are enabled from the factory gives me pause as well. While Porsche may pass this off as just a performance nod to the enthusiasts, many times this is done out of necessity. An example would be the rev match feature of the current F8X M3/M4 in the 6MT cars. It is only disabled in sport plus which is supposedly what you would use on the track, and want it for perfect downshifts. The car will auto rev match in every other mode used on the street. You know why this is the opposite of what seems logical? Because the twin disc system in that car makes a funky moaning/groaning noise as the friction discs engage and pull the rpm of the trans up/down to the correct speed as you let the clutch out unless you have perfectly rev matched. Obviously they were not able to engineer that unacceptable attribute out of the system, so they bandaided it.
These are just some of the things I think about. In a perfect world, the manual sounds awesome...but I've lived with, and had to repair Porsche 6 speed boxes, and its not always roses....and always very expensive when issues arise.
#55
Instructor
Join Date: Apr 2015
Location: SF Bay Area, CA & Charleston, SC
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why don't we just ask the 911R owners for input on their manuals and how it's holding up?
the gearbox is the exact same and the motor, being out of the .1 RS doesn't rev as high as the .2 GT3, but 8600RPM vs 9000RPM in the same 4L displacement engine...let's just call it an equal amount of "abuse" on the clutch
the gearbox is the exact same and the motor, being out of the .1 RS doesn't rev as high as the .2 GT3, but 8600RPM vs 9000RPM in the same 4L displacement engine...let's just call it an equal amount of "abuse" on the clutch
#56
RL Community Team
Rennlist Member
Rennlist Member
#57
Rennlist Member
Very simple equation to me
Fun on the streets: manual
Fun at the track: manual
Fast at the track: PDK
Then, figure out what you want !
Fun on the streets: manual
Fun at the track: manual
Fast at the track: PDK
Then, figure out what you want !
#58
The main advantage of the new GT3 is really what should be a more reliable and more thoroughly developed engine. I wouldn't want to match that with a relatively untested gearbox and LSD and potentially have a whole new set of problems.
PDK is the smart way to go, manual is the emotional path.
If you want old school, you won't find it in a 991. Not a lot of old school about RWS, hill hold, drive off assist, electric power steering etc.
PDK is the smart way to go, manual is the emotional path.
If you want old school, you won't find it in a 991. Not a lot of old school about RWS, hill hold, drive off assist, electric power steering etc.
#59
Nordschleife Master
Great...when the 991.1 GT3 came out with a pdk transmission only,the Kool-Aid drinkers used PAG's cheap propaganda about " too fast spinning engines ", " no production capacity " and " pdk fitting the character of that engine " to spin off people's opinions about the missing choice. Absolute horses**t,as it turned out 4 years later. Now they are using " reliability " and " driver's error " to spin it according to their beliefs. That is absolutely ridiculous!
#60
Addict
Rennlist Member
Rennlist Member
Fun on the streets: manual
Fun at the track: manual
Fast at the track: PDK
Very slightly less Fast at the track: manual