ACT 1992 Honda Civic HD/Race Sprung 6 Pad Clutch Kit

If your D-series Civic has a turbo kit, a built head or a hard-launch habit and the stock clutch now flares the revs in third and fourth, the ACT HC5-HDG6 is the step between a street kit and a full race clutch. It pairs ACT's Heavy Duty pressure plate with a 6-pad sprung ceramic disc and is rated at 300 ft-lb at the crank, which ACT puts at 84 percent over the factory clutch. Buyers usually find it while searching for a 1992-2005 Civic DX, LX, EX, HX or Si clutch upgrade, or a del Sol clutch that will survive boost.

What the HC5-HDG6 clutch kit does in a D-series Civic

Honda's SOHC D-series engines (1.5L, 1.6L and 1.7L) drive a 212 mm single-plate clutch on a 0.875 inch input shaft. The factory organic disc is sized for stock power, so once boost or nitrous is added it begins to slip before the engine reaches peak torque. The HC5-HDG6 keeps the same 212 mm size and spline but raises clamp load through ACT's Heavy Duty diaphragm, and swaps the full-face disc for six ceramic pads on a spring-damped hub. Ceramic pads tolerate far more heat than organic facing, and the sprung center still soaks up driveline shock so the transmission and axles take less abuse on launches.

Compared with our HC5-HDSS street kit, this kit uses the same Heavy Duty plate but a far more aggressive disc. If the 300 ft-lb rating is still short for your build, the HC5-XTG6 Xtreme kit moves up to a stronger plate.

Symptoms that point to a worn or overpowered clutch

• Engine rpm climbs without a matching gain in road speed under boost, worst in the higher gears
• A hot, burnt smell after a few hard pulls or a hill launch
• Shudder or chatter as the clutch takes up from a stop
• Engagement point creeping toward the top of the pedal as the disc wears thin
• Grinding into gear, or noise when the pedal is pressed, which can mean a worn release bearing

How to confirm the clutch is the problem before you buy

Put the car in fourth gear around 2,000 rpm and roll into full throttle. If the tachometer jumps ahead while speed lags, the disc is slipping. Before you pull the transmission, check that the pedal has proper free play and that the release system is not holding the clutch partly disengaged; a misadjusted cable or a leaking hydraulic component can mimic a worn disc. Our clutch slipping guide covers these checks, and the transmission slipping diagnosis guide helps separate clutch slip from gearbox faults.

Fitment

Our listing is titled for the 1992 Honda Civic. ACT's application chart for HC5-HDG6 covers the 1992-2005 Honda Civic with the 1.5L, 1.6L or 1.7L SOHC D-series engine, the 1993-1995 Civic del Sol 1.5L and 1.6L, the 1996-1997 del Sol 1.6L as a 212 mm conversion, and the Canadian 1997-2005 Acura EL 1.6L and 1.7L with the 5-speed. It does not fit DOHC B-series cars such as the 1999-2000 Civic Si or any Integra. The 1996-1997 del Sol listing is a conversion, so confirm your flywheel and disc size first. If you are unsure, send us your year and VIN before ordering, or browse more options in our clutch and rebuild kit collection.

Install notes

• The kit contains the H023 Heavy Duty pressure plate, the 6212104 6-pad sprung disc, the RB820 release bearing, the AT20 alignment tool and the PB1002 pilot bearing.
• Resurface or replace the flywheel. ACT offers its 600120 Streetlite flywheel for this kit; a freshly machined stock flywheel also works.
• Pull the old pilot bearing cleanly before fitting the new one; an OTC 7318 pilot bearing puller does it without damaging the crank bore.
• Center the disc with the supplied alignment tool and tighten the pressure plate bolts gradually in a crisscross pattern to the factory torque.
• Refill the gearbox with the manual transmission fluid Honda specifies for your car, then set pedal free play or bleed the hydraulics, depending on how your Civic is equipped.
• Expect light to moderate pedal effort and aggressive engagement. ACT's break-in guidance targets street discs, but ease the car through several hundred miles of normal driving anyway so the pressure plate and flywheel mate evenly. See our clutch break-in guide.

This kit suits a car that sees hard street use or track days. A daily driver with a stock or lightly modified D-series will be happier with a sprung organic street kit.

Will HC5-HDG6 fit my 1998 Civic EX?

Yes, if it is a manual car with the SOHC D-series engine. ACT lists the 1992-2005 Civic 1.5L, 1.6L and 1.7L D-series for this kit.

How much torque does the HC5-HDG6 hold?

ACT rates it at 300 ft-lb measured at the crank, 84 percent above the factory clutch.

Is a 6-pad disc OK for daily driving?

It can be driven daily, but ACT describes aggressive engagement and calls it a high-horsepower street or race clutch. Expect a quicker grab off the line than an organic disc, so stop-and-go traffic takes more care.

What is the difference between HC5-HDG6 and HC5-XTG6?

Both use a 6-pad sprung race disc. HC5-HDG6 uses ACT's Heavy Duty pressure plate rated at 300 ft-lb with lighter pedal effort; HC5-XTG6 uses the Xtreme plate rated at 380 ft-lb with a heavier pedal.

Does the kit come with a flywheel?

No. It includes the pressure plate, disc, release bearing, pilot bearing and alignment tool. Have your flywheel resurfaced or replace it; ACT lists its 600120 Streetlite flywheel for this application.

Does it fit a 1999-2000 Civic Si?

No. Those cars use the DOHC B16 engine and need a different ACT kit.

• Transmission Slipping Diagnosis Guide
• Shift Flare vs. Slip: How to Tell the Difference
• Automatic vs. Manual Transmission Repair Cost