ACT 1991 Toyota MR2 XT/Race Rigid 4 Pad Clutch Kit
ACT TM1-XTR4 is a race-only clutch for the SW20 Toyota MR2 Turbo. Our listing is titled 1991 MR2, and ACT catalogs it for the 1991-1995 MR2 Turbo with the 2.0L 3S-GTE. It is built for cars that have outgrown every street clutch: big single-turbo builds, drag cars and track cars where the stock clutch or a mild upgrade slips the moment boost comes in.
The MR2 Turbo mounts the engine and transaxle behind the seats, and the clutch sits between the 3S-GTE flywheel and the transaxle input shaft. Clamp load from the pressure plate is what keeps the disc locked to the flywheel when boost spikes torque. TM1-XTR4 uses ACT's T023X Xtreme pressure plate, the firmest plate ACT offers for this car, and a 4236007 rigid 4-pad race disc. ACT rates the combination at 645 ft-lb at the crank, 118% over the factory clutch.
The disc is 9.3 in (236 mm) with ceramic pads on a heat-treated chromoly hub and a 1.125 in spline. There are no damper springs, which saves weight and speeds up shifts but sends every driveline shock straight into the gearbox. ACT is direct about the trade-offs: moderate to heavy pedal effort, aggressive engagement, increased gear rattle, and spline wear can increase with a rigid hub. ACT recommends it for race use only. If the car still sees regular street miles, look at the TM1-HDSS street kit or the TM1-HDR6 Heavy Duty 6-pad rigid kit, which uses a lighter plate.
Log a pull or watch the tach in a higher gear at full boost. If engine speed climbs without the car pulling harder, the clutch is slipping. Before blaming the disc, rule out a weak hydraulic release, an engine oil leak onto the disc and a pedal that never fully returns. Our clutch slipping guide covers the checks, the slipping diagnosis guide explains how to tell slip from other drivetrain faults, oil on the clutch disc explains contamination, and throwout bearing noise helps separate bearing noise from gearbox noise.
Our title says 1991 Toyota MR2. ACT lists TM1-XTR4 for the MR2 Turbo only, model years 1991 through 1995, all with the 2.0L 3S-GTE. It does not fit the non-turbo MR2, and it is not listed for first-generation cars. Engine swaps, imported cars and aftermarket flywheels can change what fits, so match your existing parts or send us the year and VIN before ordering.
Not sure an organic, ceramic or puck disc suits your build? Read organic vs. ceramic clutch discs and sprung vs. unsprung discs before you commit.
| Brand | ACT |
| Part number | TM1-XTR4 |
| Fits | ACT 1991 Toyota MR2 XT/Race Rigid 4 Pad Clutch Kit |
| Vehicle fitment | Toyota Mr2 Xt/Race Rigid 4 (1991) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. ACT lists it only for the 1991-1995 MR2 Turbo with the 3S-GTE. Non-turbo cars need a different kit.
ACT recommends it for race use only. The rigid 4-pad ceramic disc engages harshly, adds gear rattle and the Xtreme plate raises pedal effort. For street driving, the TM1-HDSS organic kit is the better choice.
The T023X Xtreme pressure plate, the 4236007 rigid 4-pad race disc, an AT72 alignment tool and an RB446 release bearing. A flywheel is not included.
ACT rates it at 645 ft-lb measured at the crank, 118% more than the factory MR2 Turbo clutch.
A resurfaced, crack-free stock flywheel works, or ACT's 600390 Prolite, a 9.5 lb chromoly flywheel that ACT lists for the 1991-1995 MR2 Turbo.
ACT says race discs usually need only a few hard slips to lap in the surfaces before normal driving or racing. Avoid overheating it, which can glaze or hot-spot the surfaces.
