light weight single fly wheel clutch?
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light weight single fly wheel clutch?
For my 2024 GTS manual trans. I have gotten 100cel sport cats and MEngineering stage 2 tune. Very very happy with it overall. When I think back of my previous 2008 GT2 which I did many mods to (power, suspension, and the single fly wheel clutch). The clutch was the mod that really transformed the driving enjoyment the most. The suspension gave the go kart feeling, power was obviously great, but the clutch made the revs go up and down so quickly and gave the overall feeling of so much more control of the car. I really loved that. I was wondering if I did the same for the 2024 GTS, if they even exist for it and if it's a good or bad idea.
Also have thought of an exhaust for it but all the threads are full of different opinions and I would really need to hear it in person not on a video to know if its wroth it to me.
Mostly just want to know if anyone has tried the clutch change or why you wouldn't do it.
Thanks in advance.
Also have thought of an exhaust for it but all the threads are full of different opinions and I would really need to hear it in person not on a video to know if its wroth it to me.
Mostly just want to know if anyone has tried the clutch change or why you wouldn't do it.
Thanks in advance.
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It works fine - bolts right up and functions properly. The issue is that I believe the turbo exhaust restriction prevents the engine from reving up quickly like a NA engine - I don't have a lot of seat time in a manual 992 with a standard clutch but I do have 2 992s (a GT3 and a C2) with the LWFW installed - the GT3 revs like the wind, but the C2 I can't honestly tell much difference. However, you still profit from all the weight loss, and I would bet the engine performs better with a LWFW - it's just not as obvious on a turbo car as on a NA. Jury is still out - also don't know how long this clutch will last behind 700hp - i'm not dumping the clutch etc, and the S/T multi-plate clutch is probably stronger than stock disk, but that's just a guess.
Bottom line, I probably wouldn't spend the $12K plus install for the LWFW on a turbo car just yet - it's a cool mod, but an expensive one and not quite sure of the benefits at this point.
Bottom line, I probably wouldn't spend the $12K plus install for the LWFW on a turbo car just yet - it's a cool mod, but an expensive one and not quite sure of the benefits at this point.
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Dual Mass Flywheels are employed to deal with specific vibration frequency's that the designer of the drive-train is trying to manage. Ex: The use, or not, of a Harmonic Balancer, among many other variables.
Dual Mass Flywheels can be relatively expensive to replace. The expense of a Dual Mass Flywheel explains the retail attraction of a traditional Single Mass Flywheel in the aftermarket.
The weight of either solution is a separate thing. The weight of the Flywheel trades between the consumers perception of the engine's smoothness (increased weight) versus an increase in the rate of Engine RPM acceleration (reduced weight).
Dual Mass Flywheels can be relatively expensive to replace. The expense of a Dual Mass Flywheel explains the retail attraction of a traditional Single Mass Flywheel in the aftermarket.
The weight of either solution is a separate thing. The weight of the Flywheel trades between the consumers perception of the engine's smoothness (increased weight) versus an increase in the rate of Engine RPM acceleration (reduced weight).
Last edited by Bluehighways; Dec 19, 2025 at 07:28 PM.
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It works fine - bolts right up and functions properly. The issue is that I believe the turbo exhaust restriction prevents the engine from reving up quickly like a NA engine - I don't have a lot of seat time in a manual 992 with a standard clutch but I do have 2 992s (a GT3 and a C2) with the LWFW installed - the GT3 revs like the wind, but the C2 I can't honestly tell much difference. However, you still profit from all the weight loss, and I would bet the engine performs better with a LWFW - it's just not as obvious on a turbo car as on a NA. Jury is still out - also don't know how long this clutch will last behind 700hp - i'm not dumping the clutch etc, and the S/T multi-plate clutch is probably stronger than stock disk, but that's just a guess.
Bottom line, I probably wouldn't spend the $12K plus install for the LWFW on a turbo car just yet - it's a cool mod, but an expensive one and not quite sure of the benefits at this point.
Bottom line, I probably wouldn't spend the $12K plus install for the LWFW on a turbo car just yet - it's a cool mod, but an expensive one and not quite sure of the benefits at this point.
Is it possible to add in the S/T manual transmission to a stock GT3RS?
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Last edited by M3Inline6; Dec 19, 2025 at 07:47 PM.
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I can't speak to putting one in a 911, but I did to my BMW M3 some years ago. It made it fun on the track, but miserable in any kind of everyday traffic. Every stoplight was a challenge to take off smoothly. No one tells you that when asking around about them, but it makes sense, a lightweight flywheel stalls easily. So before putting one on the car, consider how you are going to use the car.
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The transmission will bolt up and work fine - you will need to delete the PDK controller and wires, and add a few different wires for the manual transmission and clutch wiring. But, then you will run into some issues. I think the TC / ESC should work, but you will have faults from the PTV+ as there is none with the manual, so the one **** on the column won't work. I think most everything else can be programmed and remain functional, so worth a try!
I personally don't see the point though - the PDK is meant for the track, but if you love driving a manual on track, then im 99% sure we can make this work. If anyone wants to do it, I have an brand new S/T manual that I will trade straight across for a RS PDK .
I personally don't see the point though - the PDK is meant for the track, but if you love driving a manual on track, then im 99% sure we can make this work. If anyone wants to do it, I have an brand new S/T manual that I will trade straight across for a RS PDK .
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I see @Wilder grabbing your S/T manual and completing the Touring conversion journey.
But returning to the topic of LWFW, I think some may be under the misconception that you either have single or dual mass.
It's not that simple. There are a number of variables that go into a flywheel and clutch system and some are more aggressive than others.
Some can be a hassle to drive in traffic. Others, you don't feel much of a difference from a regular dual mass.
The LWFW I'm installing was made specifically for the 3.0T motor and designed for road cars, not track cars.
It is far less aggressive than the S/T LWFW with about half the weight savings which says a lot.
The benefit of a LWFW IMO is not just an engine that revs quicker but having less rotational mass involved in transferring power from engine to transmission.
That's what makes the car feel more responsive and alive. Can't wait to install mine. I'll report back.
