ACT 1987 Mazda RX-7 HD/Race Sprung 6 Pad Clutch Kit
An FC RX-7 Turbo II with an upgraded turbo, a bigger intercooler or a standalone ECU often outgrows its original clutch long before anything else on the car. The usual complaint is slip in third and fourth at full boost, or a disc that is cooked after a few track sessions. ACT Z65-HDG6 answers that with ACT's Heavy Duty pressure plate and a six-pad sprung ceramic race disc, for owners who want more holding power without the heaviest pedal ACT makes.
Z65-HDG6 combines the MZ010 Heavy Duty pressure plate with the 6240208 six-pad spring-centered race disc, 240 mm (9.4 in) across with a 1 in input. ACT rates it at 420 ft-lb at the crank, 72 percent over the original clutch. The spring center absorbs torsional vibration from the rotary and the driveline, which helps the gearbox and makes it more forgiving than a rigid race disc. ACT lists light to moderate pedal effort, aggressive engagement and OE to mild gear rattle, and recommends it for high horsepower street or race use. Its FAQ puts the pedal effort rise for Heavy Duty plates at roughly 15 to 40 percent over stock depending on the car.
The disc is the same one used in the Z65-XTG6; that kit swaps in the Xtreme plate for more clamp load and a heavier pedal. If you want the Heavy Duty plate with a smoother street disc, look at the Z65-HDSS.
Try a full-throttle roll-on in fourth from low rpm; if engine speed rises faster than the car accelerates, the clutch is slipping. Rule out a hydraulic problem holding the clutch partly released, and look for oil on the bellhousing that could be contaminating the disc. Our slipping diagnosis guide lays out the checks, and flare vs slip helps describe what you are feeling.
Our listing names the 1987 RX-7. ACT's fitment table covers the 1986-1991 RX-7 Turbo with the 1.3L turbocharged 13B, and lists the 1988 10th Anniversary model as well. It is a turbo-only application: ACT does not list it for the naturally aspirated FC, and the later FD RX-7 uses different ACT kits. If your car has been converted from NA to turbo, or you are not sure what transmission it has, send us the year and VIN so we can check before you order. More kits are on our rebuild kits page.
| Brand | ACT |
| Part number | Z65-HDG6 |
| Fits | ACT 1987 Mazda RX-7 HD/Race Sprung 6 Pad Clutch Kit |
| Vehicle fitment | Mazda Rx-7 Hd/Race Sprung 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 RX-7 Turbo with the 13B turbo, including the 1988 10th Anniversary. It is not listed for the non-turbo FC.
Both use the same 6240208 six-pad sprung disc. Z65-HDG6 uses the Heavy Duty plate for 420 ft-lb and a lighter pedal; Z65-XTG6 uses the Xtreme plate for 560 ft-lb and a heavier pedal.
MZ010 pressure plate, 6240208 disc, RB091 release bearing, PB1013 pilot bearing and AT03 alignment tool. No flywheel or counterweight.
Only with an ACT XACT flywheel, which ACT says requires one. The 600145-02 Streetlite kit includes the CW02 counterweight.
ACT rates it for high horsepower street or race use with aggressive engagement. It can be driven daily, but a full-face street disc like Z65-HDSS is smoother in traffic.
