2023 MT Supra Clutch Replacement Options

[lucky phil]

I really recommend PTB clutch. Smooth gear engages, clutch pedal feels exactly like OEM and it handles torque well. Even my friends who tried my car, didn’t believe it’s an aftermarket clutch. Mine is twin disc clutch with single mass flywheel. You barely hear the chatter sometimes never.

Above is my clutch preference, 1000Nm is more than enough for me.

Funny, as bystanders at the pedestrian crossing are covering their ears and looking like an explosion is about to happen. It will only get worse as it gets older.

Phil

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[Hasan]

I really recommend PTB clutch. Smooth gear engages, clutch pedal feels exactly like OEM and it handles torque well. Even my friends who tried my car, didn’t believe it’s an aftermarket clutch. Mine is twin disc clutch with single mass flywheel. You barely hear the chatter sometimes never.

Above is my clutch preference, 1000Nm is more than enough for me.

Is the single mass flywheel significantly lighter than the OME? Do you still have rev hang in 1-2 and 2-3 shifts or do the RPMs drop more naturally now?

 

[Mayday]

Is the single mass flywheel significantly lighter than the OME? Do you still have rev hang in 1-2 and 2-3 shifts or do the RPMs drop more naturally now?

Single mass flywheel is lighter for sure and the RPM revs faster now because of the single mass flywheel. The rev hangs between the gears exactly like the OEM nothing has changed. Everything feels like OEM, the clutch pedal effort and RPM hangs so there is no difference except that the RPM revs faster like you feel it jumps quicker than OEM. And yeah one more thing, the car is faster now tbh. The HP increased when I opened the sport display and really you can feel the difference when you pull the car.

PTB Racing clutches is the way to go

 

[indymajor]

CES full review with the PTB clutch.

 

[kingdooksdb]

I’m still experiencing the same issue I had with the stock clutch and now with my CM twin disc, CDV is deleted. Yet first to second gear under full load will occasionally squeal and not go into gear until the RPMs drop(note that I say squeal but while you may hear the squeal if you listen for it you can most definitely feel it in the clutch pedal and shifter).. it’s an issue I’ve had for a while and it’s driving me nuts. That being said other times I’ll gun it first to second and no issue at all. I swear to god if I have to replace the synchros I’m going to be pissed off, I’m so tired of spending money on this car lmfao

 

[BMWAF]

I’m still experiencing the same issue I had with the stock clutch and now with my CM twin disc, CDV is deleted. Yet first to second gear under full load will occasionally squeal and not go into gear until the RPMs drop(note that I say squeal but while you may hear the squeal if you listen for it you can most definitely feel it in the clutch pedal and shifter).. it’s an issue I’ve had for a while and it’s driving me nuts. That being said other times I’ll gun it first to second and no issue at all. I swear to god if I have to replace the synchros I’m going to be pissed off, I’m so tired of spending money on this car lmfao

First to second in this car is shit. Anyone who says otherwise hasn't driven a car with a good manual transmission before.

 

[kingdooksdb]

First to second in this car is shit. Anyone who says otherwise hasn't driven a car with a good manual transmission before.

It’s so difficult to gauge what the issue is, my first instinct is clutch engagement(or lack of) but it’s sporadic I upgraded the clutch in December BECAUSE of this issue/pure800 upgrade, it squeals doesn’t catch rpms drop and then it does, and then other times it’s smooth as butter…. Ready to tear my hair (or what’s left of it) out. Like I said I hope it isn’t the worst case which is synchros

 

[BMWAF]

It’s so difficult to gauge what the issue is, my first instinct is clutch engagement(or lack of) but it’s sporadic I upgraded the clutch in December BECAUSE of this issue/pure800 upgrade, it squeals doesn’t catch rpms drop and then it does, and then other times it’s smooth as butter…. Ready to tear my hair (or what’s left of it) out. Like I said I hope it isn’t the worst case which is synchros

I have had this issue since day one. CDV is a placebo. I'm tuned now but with the stock turbo and the issue persists. I agree that sometimes the change is perfect but other times it's just dog shit. It feels like you're a learner driver and you somehow fucked up the gear change, except you didn't. I found turning off rev-matching helped but again, maybe that's just another placebo.

I suspect it's got something to do with programming code rather than something mechanical but other than it being super frustrating, I honestly don't know.

 

[Hasan]

I have never had any issues with the 2nd gear engagement at any rpm or load. My only issue is the horrible rev hang until 3rd.

 

[BMWAF]

I have never had any issues with the 2nd gear engagement at any rpm or load. My only issue is the horrible rev hang until 3rd.

What is your build date?

 

[Hasan]

What is your build date?

Mine is a MY2024. Not sure what the actual build date is.

 

[Erty]

Chat, my clutch is finally slipping. 5k miles on MHD E40 OTS map. Time for PTB

 

[Funkjaw]

I really recommend PTB clutch. Smooth gear engages, clutch pedal feels exactly like OEM and it handles torque well. Even my friends who tried my car, didn’t believe it’s an aftermarket clutch. Mine is twin disc clutch with single mass flywheel. You barely hear the chatter sometimes never.

Wondering how you still feel about NVH/chatter increase on your setup now that you've put some distance on it? Asking because I've driven BMWs in the past that went to a single mass flywheel and the noise/chatter increase was very noticeable.

 

[rottmore]

Chat, my clutch is finally slipping. 5k miles on MHD E40 OTS map. Time for PTB

I guess Hasan was right after all

 

[lucky phil]

Wondering how you still feel about NVH/chatter increase on your setup now that you've put some distance on it? Asking because I've driven BMWs in the past that went to a single mass flywheel and the noise/chatter increase was very noticeable.

And so the life of the gearbox is much harder. Dual mass flywheels are designed to make the road driving experience nicer and provide mechanical support for the gearbox. They were conceived when turbocharged cars became designed and tuned to make torque at quite a lower rpm than in years past. Now for economy and emission reasons they are designed to be short shifted at a much lower rpm than previously to ride that low rpm torque wave and that's not ideal for the transmission. The DM flywheel help the transmission deal with the lower frequency of power pulses and torque delivery. Going to a single mass flywheel on a road car is not a good idea.
As an example if you used 6th gear on a Tremec T56 behind a GEN111 Chev engine below 100kph then eventually the gearbox will fail. The engine will pull the gear just fine but the gearbox doesn't like the harmonic influence at those low rpm at all. A DM flywheel is designed to make this scenario possible.
BTW a light flywheel will make zero more horsepower than a heavy one and the inertia saved by the lighter flywheel won't appreciably increase the acceleration of the car in fact it may actually be slower in acceleration from a standing start due to there being more difficulty in launching a car with a light flywheel compared to a heavier flywheel. The reduced flywheel mass and it's effect on engine inertia is very minor compared to the engines real work of accelerating the 1600kg mass of a car. As I've mentioned before a lot of modification benefits are primarily in the mind.
The biggest difference you will see from a single mass lighter flywheel is the engine will catch rpm faster on the downshifts throttle blips. It will also give you a physically rougher idle especially on a four cylinder engine, cause the gearbox to rattle at idle and create extra stress on the gearbox mechanically and make the car harder to launch from a standstill.
I know what I'd chose for a road car
Phil

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