Clutch Masters 86-93 Supra 6cyl 3.0L T 8.5in TD Street Clutch Kit Push & Hyd Slave *Req...

A Mk3 Toyota Supra turbo that has been built past stock boost, or swapped to a bigger turbo, eventually overpowers any single-disc clutch that still has a usable pedal. That is the job for Clutch Masters part number 16063-TD8S-XVH: an 850 Series street twin-disc kit for the 1986-1993 Supra with the 3.0L turbocharged six. If your Supra slips in third and fourth on boost, has already burned through a heavy-duty single disc, or you are planning a build that will make far more torque than the stock clutch was ever meant to hold, this is the class of clutch you are shopping for. One thing to know up front: this kit does not include a flywheel.

What a twin-disc clutch does in a Mk3 Supra

Torque capacity comes from clamp load multiplied by friction surface area. A single-disc upgrade only has two friction faces, so the only way to hold more power is more clamp and grabbier material, which gives a heavy pedal and abrupt engagement. A twin-disc kit stacks two 8.5 inch discs with a floater plate between them, giving four friction faces. Clutch Masters says its 850 Series uses its quick-release pressure plate, called the QR system, designed for clean engagement and release, and claims it reduces internal clutch noise by up to 50 percent while keeping pedal effort manageable. The 8S in the part number marks the street version of the 850 Series.

Clutch Masters lists its Supra 850 Series kits as a push-type conversion with a hydraulic slave cylinder, meaning a hydraulic release bearing, included. The listing title notes the hydraulic slave, and the XVH version is the configuration supplied without a flywheel.

Symptoms that justify a twin-disc upgrade

• Slip on boost in the higher gears even with a new heavy-duty single disc
• A single-disc clutch that needs a pedal so heavy the car is tiring to drive
• Repeated glazing or heat damage to the disc and flywheel
• A planned power level, such as a larger turbo or an engine swap, well above what single discs are rated for
• A worn or leaking factory slave cylinder and fork setup you would rather replace with a hydraulic release bearing

How to confirm what you need

Confirm slip with a full-throttle pull from low rpm in fourth gear; if engine speed climbs faster than road speed, the clutch is slipping. Then be honest about power. If the car is near stock, a single-disc kit such as the Clutch Masters 16063-HDB6 kit or the SPEC Stage 2+ for the 1987-1992 Supra Turbo costs far less and does not need a new flywheel. Our manual transmission repair cost guide lays out what a clutch job costs in labor so you can compare total spend.

Fitment

This listing is for the 1986-1993 Toyota Supra with the 3.0L turbocharged six-cylinder and the five-speed manual. The 16063 prefix is Clutch Masters' code for that Supra bellhousing pattern; it is not for the 1993-1998 Mk4 Supra, and naturally aspirated cars use a different gearbox and should be checked before ordering. Engine swaps such as a 1JZ in a Mk3 chassis change the flywheel and input details, so tell us your engine, gearbox and VIN if the car is not stock and we will confirm before it ships.

Flywheel and install notes

• The listing title flags it: the kit requires a Clutch Masters FW-170-B-TD series twin-disc flywheel, which is sold separately. A stock or single-disc aftermarket flywheel will not work with the twin stack.
• Because this is a push-type conversion with a hydraulic release bearing, plan the clutch line routing and bleed procedure for the new slave before the gearbox goes back in.
• Replace the pilot bearing and inspect the rear main seal; oil on a twin stack ruins both discs.
• Assemble the discs and floater in the order and orientation marked in the instructions, align with the supplied or a universal tool, and torque the cover evenly in a star pattern.
• Break the clutch in with easy street miles before any launches or full-boost pulls.

For a different power level on the same car we also carry the ACT HD street sprung kit and the SPEC Stage 3 kit.

Does 16063-TD8S-XVH come with a flywheel?

No. This is the version supplied without a flywheel. It requires a Clutch Masters FW-170-B-TD series twin-disc flywheel, sold separately. Single-disc flywheels will not work with the twin stack.

Does it fit the 1993-1998 Mk4 Supra?

No. The 16063 kits are for the 1986-1993 Mk3 Supra. The Mk4 2JZ cars use different Clutch Masters part numbers.

What does push type conversion with hydraulic slave mean?

Clutch Masters describes its Supra 850 Series kits as a push-type conversion with a hydraulic slave cylinder, a hydraulic release bearing, included. It replaces the factory release setup, so the clutch line and bleeding change during install.

Is a twin disc too much for a stock Supra Turbo?

Usually. Twin-disc kits are for high-power builds. On a stock or lightly modified 7M-GTE a single-disc kit is cheaper, quieter and keeps the factory-style flywheel.

Will the clutch rattle at idle?

Twin-disc clutches can make some floater and disc noise at idle. Clutch Masters says its QR pressure plate reduces internal clutch noise by up to 50 percent, but some sound is normal for the design.

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