ACT 2000 Honda S2000 HD/Perf Street Sprung Clutch Kit
ACT HS1-HDSS is for the Honda S2000 owner who needs a stronger street clutch but already has new or good release and pilot bearings on the shelf. It answers the usual S2000 complaints: rpm flaring at the top of a gear after an intake, header or tune, judder pulling away on a warm day, or a factory clutch that is simply worn out after 100,000 miles of high-rpm shifts. The listing title says 2000, but ACT applies this kit to every S2000 built, 2000 through 2009.
The F20C and F22C make their torque late, so the clutch sees fast engagements at high engine speed and plenty of heat on track days. This kit is two friction parts and a tool. The H021 Heavy Duty pressure plate uses ACT's four-stage heat-treated diaphragm to add clamp load and cut deflection, so the plate keeps its squeeze as the engine approaches redline. The 3000106 Performance Street disc is the factory 212 mm (8.3 in) diameter with a sprung hub and a high-copper organic lining bonded to a steel backing. That backing raises burst strength, and the copper moves heat away from the face so the disc fades less after repeated pulls.
ACT rates the combination at 370 ft-lb at the crank, 39 percent more than the original equipment clutch. That is a lot of margin for a naturally aspirated S2000 and enough for many mild boosted builds. ACT describes the feel as light to moderate pedal effort with smooth, positive engagement and OE to mild gear rattle. Each assembly is clamp-load tested and computer balanced, which matters on an engine that lives above 8,000 rpm.
Rule out the hydraulics before pulling the transmission. Check the reservoir level, look for weeping at the master and slave cylinders, and make sure the slave rod is not holding the fork partly applied. Then make a full-throttle pull in fourth from around 3,000 rpm; if the tach jumps without a matching surge in speed, the disc is slipping. Our slipping diagnosis guide covers the test in detail, and shift flare versus slip helps separate true slip from other drivetrain feel. Noise that changes when you press the pedal points to the release bearing, which this kit does not replace.
ACT lists HS1-HDSS for the 2000-2003 Honda S2000 2.0L (F20C) and the 2004-2009 S2000 2.2L (F22C), including the 2008-2009 CR. Input shaft diameter is 1-1/32 in and the kit weighs 13.2 lb. Cars with a swapped engine, a different transmission or an aftermarket flywheel should be checked first; send us your year and VIN and we will confirm before it ships. Browse more S2000 hardware in our rebuild kits and clutch department.
The important detail with HS1 is what is missing. ACT states that this kit does not include bearings. If your release or pilot bearing is original, the HS2-HDSS uses the same plate and disc and adds both bearings, so one box covers the whole job. The H021 pressure plate is also sold on its own if only the cover is damaged.
| Brand | ACT |
| Part number | HS1-HDSS |
| Fits | ACT 2000 Honda S2000 HD/Perf Street Sprung Clutch Kit |
| Vehicle fitment | Honda S2000 Hd/Perf (2000) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. ACT states the kit does not include bearings. It contains the H021 pressure plate, the 3000106 disc and the AT61 alignment tool. If you need bearings, HS2-HDSS has the same plate and disc plus both bearings.
ACT lists every S2000: 2000-2003 with the 2.0L F20C and 2004-2009 with the 2.2L F22C, including the 2008-2009 CR.
ACT rates it at 370 ft-lb measured at the crank, 39 percent over the factory clutch.
Yes. It uses an organic sprung disc, and ACT describes light to moderate pedal effort with smooth engagement and OE to mild gear rattle.
Not always. Resurface the factory flywheel if it is within spec. Replace it if it is cracked, heat-spotted beyond cleanup, or if you want a lighter XACT flywheel.
