ACT 1987 Mazda RX-7 HD/Race Rigid 6 Pad Clutch Kit
Z65-HDR6 is the ACT kit for an FC RX-7 Turbo that spends its weekends on a road course or drag strip. If your 13B turbo now runs a larger turbo, more boost and a tune, and the stock or street clutch flares at every full-throttle upshift, this kit pairs ACT's Heavy Duty pressure plate with a rigid, solid-hub six-pad ceramic disc. It is built for race use, not for an easy commute.
ACT rates Z65-HDR6 at 420 ft-lb at the crank, 72 percent over the original clutch, using the MZ010 Heavy Duty plate and the 6240008 rigid race disc. The disc is 240 mm (9.4 in) with a 1 in input spline, and the kit weighs 14.9 lb per ACT. Holding power is the same number ACT gives the sprung Z65-HDG6; the difference is the hub. With no damper springs, the disc is lighter and shifts faster, but engagement is harsher, gear rattle increases, and ACT notes the rigid design may increase spline wear. ACT lists pedal effort as light to moderate and recommends this kit for race use only.
If the car still sees street miles, the sprung Z65-HDG6 keeps the same plate and rating with a damped hub. For more clamp load, the Z65-XTG6 moves to the Xtreme plate.
Do a high-gear roll-on from low rpm at full boost and watch the tach against the speedometer. If rpm jumps without the car pulling harder, the clutch is slipping. Rule out a hydraulic fault that keeps the clutch partly released, check for oil at the bellhousing, and confirm the slip is not coming from a worn diff or axle. Our clutch slipping guide and the slipping diagnosis guide walk through the checks.
Our listing names the 1987 RX-7. ACT's application table covers the 1986, 1987, 1988, 1989, 1990 and 1991 RX-7 Turbo with the 1.3L turbocharged rotary, plus the 1988 10th Anniversary. ACT does not list it for the naturally aspirated FC, and the FD RX-7 takes a different kit. If your car is an NA-to-turbo conversion or has a swapped gearbox, match the old disc and pressure plate, or send us the year and VIN so we can check before it ships. Other FC options are on our rebuild kits page.
Budgeting the labor? See our clutch replacement cost guide.
| Brand | ACT |
| Part number | Z65-HDR6 |
| Fits | ACT 1987 Mazda RX-7 HD/Race Rigid 6 Pad Clutch Kit |
| Vehicle fitment | Mazda Rx-7 Hd/Race Rigid 6 (1987) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
ACT lists the 1986-1991 Mazda RX-7 Turbo with the 1.3L turbo rotary, including the 1988 10th Anniversary. It is not listed for the non-turbo FC or the FD.
Both use the MZ010 Heavy Duty plate and are rated 420 ft-lb. HDR6 has a rigid hub that shifts faster but engages harsher with more gear rattle; HDG6 has a sprung hub that is easier on the driveline.
ACT recommends it for race use only. A rigid ceramic disc engages abruptly and adds gear rattle, so street-driven cars are better served by the sprung Z65-HDG6 or the full-face Z65-HDSS.
MZ010 pressure plate, 6240008 rigid six-pad disc, RB091 release bearing, PB1013 pilot bearing and AT03 alignment tool. No flywheel or counterweight.
Only if you install an ACT XACT flywheel, which ACT says needs one. The 600145-02 Streetlite flywheel kit includes the CW02 counterweight.
