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lucky phil

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"I was scared it was going to be something like the slave had failed"

I think in almost any car I've worked on, I would have preferred a slave cylinder to have failed than for a clutch disc.

As soon as they mentioned drifting, though, I felt the root of the issue had been discovered.

Unfortunate thing is this video is probably going to give people a skewed viewpoint that the stock clutch may be inherently defective. I highly doubt anyone driving that car didn't significantly abuse that clutch for it to shred itself like that.
That guy pissed me off in the first 20 seconds. Great way to analyse a mechanical failure. Let the component hit the workshop floor then kick it around and stomp on it like a moron. These guys are "experts"
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NocturnalEmber

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That guy pissed me off in the first 20 seconds. Great way to analyse a mechanical failure. Let the component hit the workshop floor then kick it around and stomp on it like a moron. These guys are "experts"
Phil
Within a few minutes of the video starting I was already mildly annoyed by everyone in it. I'd hardly call them experts, it's pretty clear they're chasing youtube views/clout. The video description image is a dead giveaway, too. There isn't some great mystery here, they abused the car and the clutch failed. I wouldn't say its clickbait on the level of Scotty Kilmer, but still trash content.
 

Stvee

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Has anyone confirmed whether the supra actually has a clutch delay valve or not? The G80 M3 has it and this is essentially the same transmission so I'm guessing it does.

If it does, drifting with that in place is obviously going to cause problems.


 

NitroYellowMKV

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Have there been other near stock cars that blew on Jesse's tune or is this an isolated incident?
I would this is isolated, if you are asking if I think Jesse had anything to do with it failing? Definitely not, if anything a custom tune is considerably safer and more efficient then default OTS maps
 

AJRMKV

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I would this is isolated, if you are asking if I think Jesse had anything to do with it failing? Definitely not, if anything a custom tune is considerably safer and more efficient then default OTS maps
True. Jesse seems to do a great job with a very limited tool. That being said, custom map or not with JB4, i'm sure it's less reliable than a custom ecu time with a partial unlock.
 

Ace of Laces

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Clutch break in process is a foreign concept to many new owners I fear. It seems those who follow the break in process religiously are having less/no issues.
 

FuzzyRev

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Fuck this guy and his channel, he counts for less than nothing. These YT clickbaiters can't go away fast enough. An overheated clutch exploding on a drift car?! Gee, that's never happened before...
 

hamchin

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Fuck this guy and his channel, he counts for less than nothing. These YT clickbaiters can't go away fast enough. An overheated clutch exploding on a drift car?! Gee, that's never happened before...
I remember he posted a video of him doing burnouts and donuts the moment he got delivery of the car. Proceeds to drift it a few days later as well.
 

FuzzyRev

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Has anyone confirmed whether the supra actually has a clutch delay valve or not? The G80 M3 has it and this is essentially the same transmission so I'm guessing it does.
Hmmmmmm, I'm tempted to try something...

00_FroCAT.webp

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Stvee

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Hmmmmmm, I'm tempted to try something...
In the G80 the CDV is in the line connecting to the slave cylinder. I know BMW has done it both ways but I'd start with checking that line first.

I looked on parts.toyota.com but didn't see it available to order.
 

FuzzyRev

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In the G80 the CDV is in the line connecting to the slave cylinder. I know BMW has done it both ways but I'd start with checking that line first.

I looked on parts.toyota.com but didn't see it available to order.
The slave cylinder and line are not available, as they don't even have a valid part number for them yet, along with many other MT and clutch-related parts. Pretty frustrating, as they started building actual production MT models in July of 2022, and test mules waaayy before that. Let me make a couple phone calls and see where we are in this process...

EDIT: I've got a 'case' started and a fellow Parts Master or engineer is supposed to contact me within the next couple days. Fingers crossed! ?
 
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NocturnalEmber

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Clutch break in process is a foreign concept to many new owners I fear. It seems those who follow the break in process religiously are having less/no issues.
I've owned my car for two months now, and it is almost out of the 1,200 mile break in. I've followed that procedure religiously. The car has not seen over 4,500 RPM yet, and it will gradually see higher once it hits 1,200 miles.

People can argue for or against following a break in procedure. My rationale is, I just paid $63,000~ for this car and the engineers put that break in procedure in the manual for a reason. Regardless of if the cars see a dyno as part of final assembly, I'm going to follow the break in procedure for the car the manufacturer recommends.

Following a short break in procedure (be it clutch, engine, etc) is a small price to pay for something I plan on owning indefinitely.
 
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NocturnalEmber

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I remember he posted a video of him doing burnouts and donuts the moment he got delivery of the car. Proceeds to drift it a few days later as well.

And this guy wonders why he's having issues? As much as I'd want to say stupidity, I don't think that's entirely the case. This guy is knowingly doing something that will destroy a clutch, all for the sake of throwing up a youtube video with a stupid title card that consists of them looking into a problem they already know the cause of, just to get views.

People watch that stuff, and people like that profit off of it.
 

lucky phil

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Hmmmmmm, I'm tempted to try something...

00_FroCAT.webp

074100_Fro.webp
Forget removing the restrictor, it has no influence on clutch failure. I've seen the same supposed "solution" of removing the restrictor on other makes and it has no effect other than making the clutch slightly harder to modulate. People remove it looking for a "magic bullet" to absolutely any clutch issue and even clutch "non issues". It's a pity the clowns in the video didn't take the time to sit down at the bench with a good light and a magnifier and try and see what happened to the plate. IE did it shed some lining due to a friction plate rivet failing or had it been chronically slipping and overheated and then failed or had the friction plate failed mechanically initially and then it shed material. Or did they just want to destroy the std clutch so they could fit a new unit they had waiting to go on.

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