Manual Transmission Feedback
10-09-2021, 09:39 PM
#1
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Manual Transmission Feedback
I’m curious how the manual transmission compares to 991 GT3 as well as 997 GT3 as far as clutch and shifter. Hopefully there are manual transmission owners out there who can chime in.
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Daft Chief (11-02-2021)
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10-31-2021, 02:51 AM
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The 991 GT3 was designed around both manual and PDK gearboxes, but they didn’t have budget or production capacity to do both from start when it was not yet known that the demand for the objectively slower manual could justify the additional cost of offering both (until huge demand for 911R settled the question). Both gearboxes were tested in mules from the beginning. For the 992, it was even known earlier that both gearboxes would be used - not an afterthought.
People lamented that the 991.2 GT3 could not be optioned with a single-mass flywheel like the 911R. So, Porsche lightened the flywheel in the 992 (for free) and a consequence is that it’s more responsive and dynamic (but easier to stall, as is always the case when you lighten a flywheel). It now drives better, but requires more of the driver. Doesn’t mean the car was more optimized for PDK.
Generally when people debate which to buy, PDK is right for them. The manual people typically know they want manual all along.
People lamented that the 991.2 GT3 could not be optioned with a single-mass flywheel like the 911R. So, Porsche lightened the flywheel in the 992 (for free) and a consequence is that it’s more responsive and dynamic (but easier to stall, as is always the case when you lighten a flywheel). It now drives better, but requires more of the driver. Doesn’t mean the car was more optimized for PDK.
Generally when people debate which to buy, PDK is right for them. The manual people typically know they want manual all along.
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michaeldorian (10-11-2021)
10-09-2021, 11:29 PM
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Daft Chief (10-10-2021)
10-10-2021, 12:08 AM
#4
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991R doesn't have flat up shift. Minor point of differentiation between the two. And somehow 991.2 GT3 the clutch feels impossibly light, even lighter than 911R with SMFW.
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Daft Chief (10-10-2021)
10-10-2021, 10:59 AM
#5
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991 GT3 MT, esp on the 911R, is very close to the 992 which I think is the best of all those. But very different to the 997 generation, which had a much heavier clutch and shift was less "bolt action" in comparison, in my opinion. If you like MT then you'll like the 992 GT3 MT. It's everything the reviewers say it is.
10-10-2021, 12:00 PM
#6
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Manual owners, please update this thread with your impressions on the clutch/gear shift feel after you take delivery. Much appreciated and thank you in advance!
10-10-2021, 01:29 PM
#7
I had about 12k miles in the 991.2 RS and only about 30 in the 992. Both have similarly short, precise gearing and spacing. Initial impression was just the slightest bit less of the precise engagement but I am willing to chalk it up to car not broken in yet. Not such that you would ever miss a gear however. **** size is the same. Clutch is quite light but agree, it was in the 991.2 as well. With a 3 month gap from driving one to the other, I'd say very similar clutch weight and engagement.
997.2 RS (my basis for comparison there) was a good bit stiffer clutch. I had issues with that transmission when cold with notchy/difficult engagement though when warm, it was very precise (more of a metal slotting into metal feel). Stiffest clutch by FAR was the 996 GT3 (that made your left foot tired in traffic!) though the shift action while fine, was leagues worse than 997 and beyond
997.2 RS (my basis for comparison there) was a good bit stiffer clutch. I had issues with that transmission when cold with notchy/difficult engagement though when warm, it was very precise (more of a metal slotting into metal feel). Stiffest clutch by FAR was the 996 GT3 (that made your left foot tired in traffic!) though the shift action while fine, was leagues worse than 997 and beyond
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Daft Chief (11-02-2021)
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10-11-2021, 10:14 AM
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10-11-2021, 10:17 AM
#11
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One of the reviews did say the clutch is lighter than the 991 clutch. But that was single review and no other reviewer has mentioned it (but then these other reviews also did not comment on clutch feel).
I have a C7 ZR1, its clutch is probably about 70% stiff as the 997 clutch which to me is right at the borderline too light.
The 991 clutch was way too light but more so than how light it was, the engagement point was way too high. I dont understand why do they do this in a GT3. I understand in a GTS or another model why they must be doing it but GT3 doesnt make sense.
I have a C7 ZR1, its clutch is probably about 70% stiff as the 997 clutch which to me is right at the borderline too light.
The 991 clutch was way too light but more so than how light it was, the engagement point was way too high. I dont understand why do they do this in a GT3. I understand in a GTS or another model why they must be doing it but GT3 doesnt make sense.
10-11-2021, 11:20 AM
#12
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With a lighter clutch, I assume it would make it a easier manual to drive for a larger proportion of people (regardless of manual skill level)? But Matt Farrah did mention multiple times on his podcast, he stalled it a few times, though that could be more related to the lighter flywheel.
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10-11-2021, 12:13 PM
#14
Race Director
Light engagement of controls allows for more precision, and are a positive evolution of sports cars. heavy controls are not "manly" or have more race-Cred, they are just harder to engage. Matt stalled it because he stalled it, rarely does a reviewer blame themselves.
10-11-2021, 12:33 PM
#15
Also, isn’t a high engagement better for faster shifting. That’s what I grew up with and am pretty fast with a clutch press. I don’t want to hit the floor to change gears.