ACT 1993 Mazda RX-7 HD-M/Race Sprung 6 Pad Clutch Kit
A 1993 Mazda RX-7 running a bigger single turbo, a ported 13B-REW or simply more boost than stock will overwhelm the factory clutch quickly, and the classic FD complaint is slip in the upper gears once boost comes on hard. The ACT ZX6-HDG6 is a Heavy Duty pressure plate paired with a ceramic 6-pad sprung race disc, and it includes ACT's Monoloc release collar, a direct upgrade for the FD's pull-type release mechanism.
The FD uses a pull-type clutch behind its sequential twin-turbo 13B-REW and five-speed manual. ACT rates this kit at 510 ft-lb at the crank, 81 percent over the stock clutch. The MZ028 Heavy Duty pressure plate keeps pedal effort moderate, while the 6240508 disc is a 240 mm (9.4 in) ceramic 6-pad with a sprung center that absorbs torsional shock. The Monoloc is a one-piece hardened chromoly collar that replaces the two-piece wedge collar and wire ring, keeping bearing loading even so the release stays aligned. ACT describes the engagement as aggressive and the kit as intended for high-horsepower street or race use, so this is not the soft daily-driver choice.
Do a fourth-gear full-boost pull from low rpm and watch for rpm rising faster than speed. Rule out hydraulics first; an old FD slave or clutch line can mimic clutch problems. With the transmission out, inspect the release collar and fork pivot, since pull-type mechanisms wear in their own way. Our slipping diagnosis guide explains the load test, and rebuild vs. replace helps if the gearbox itself is suspect.
This listing is for the 1993 Mazda RX-7. ACT's chart covers US-market 1993 to 1995 RX-7 Base, Touring, R1 and R2, plus 1996 to 2002 JDM and 1996 to 1998 European FD models. Input shaft diameter is 1 in. Imported or swapped cars should be confirmed by sending us the year and VIN or chassis number. See all clutch options in our clutch and rebuild kits collection.
No flywheel is included. Resurface the stock flywheel or upgrade; ACT sells its lightweight FD flywheels alongside a CW02 counterweight, and our ACT Streetlite flywheel with CW02 counterweight bundles both. A 13.2 lb steel flywheel for the 89 to 95 RX-7 is another option. Center the disc with the AT03 tool, tighten the pressure plate in a crisscross sequence and follow ACT's Monoloc instructions when engaging the bearing. Bleed with the fluid on the reservoir cap. ACT race discs only need a few controlled slips to lap in, but avoid overheating them. For a smoother street car, consider the organic ZX6-HDSS.
| Brand | ACT |
| Part number | ZX6-HDG6 |
| Fits | ACT 1993 Mazda RX-7 HD-M/Race Sprung 6 Pad Clutch Kit |
| Vehicle fitment | Mazda Rx-7 Hd-M/Race Sprung 6 (1993) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
Yes. ACT lists the ZX6-HDG6 for US-market 1993 to 1995 RX-7 models, plus JDM 1996 to 2002 and Euro 1996 to 1998 FD cars. Send your VIN or chassis number if your car is an import.
No. Resurface your stock flywheel or upgrade. ACT offers its 600140 Prolite and 600145 Streetlite flywheels and the CW02 counterweight for this kit.
A one-piece hardened chromoly collar that replaces the factory two-piece wedge collar and wire ring on pull-type clutches. ACT says it keeps bearing loading uniform and greatly improves release mechanism life.
ACT rates the pedal as light to moderate, but engagement is aggressive and it is aimed at high-horsepower street or race cars. Daily drivers usually prefer the organic ZX6-HDSS.
ACT rates it at 510 ft-lb at the crank, 81 percent over the factory clutch.
