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More Grip for a Street Driven Civic Si
The Action Clutch Stage 2 Super Copper kit is a vehicle specific clutch package for the 2017 to 2021 Honda Civic Si with the 1.5L L15B7 turbo engine and a manual transmission. Its copper loaded organic friction material adds grip and heat tolerance while the sprung disc and single diaphragm pressure plate retain smooth street manners. This listing uses Action Clutch part number ACR-2190.
Key Features
- Stage 2 Super Copper friction material with high copper content
- Reinforced steel backed sprung organic disc with copper loaded facing
- Heavy duty single diaphragm pressure plate
- Higher holding capability than the factory clutch while retaining street drivability
- Fully enclosed spring retainers for protected spring operation
- Sprung hub for smoother engagement in street use
- Ductile iron friction plate, reinforced drive straps, heat treated diaphragm spring, and dynamically balanced cover assembly
- Designed for stock, tuned, and basic bolt on street cars with occasional circuit, time attack, or road racing use
- SFI 1.1 rated clutch system
- Exact application identification by ACR-2190
Fitment
| Years | Make | Model | Trim | Engine | Transmission | Notes |
|---|---|---|---|---|---|---|
| 2017 to 2021 | Honda | Civic | Si | 1.5L L15B7 turbo | Manual | Vehicle specific application for ACR-2190 |
The application is limited to the listed Honda Civic Si configuration. Automatic transmission vehicles, different engines, and other model years require a different clutch application. The flywheel is not part of this package and must be suitable for reuse or replacement before installation.
Specifications
| Detail | Value |
|---|---|
| Product line | Action Clutch Stage 2 Super Copper 1SC |
| Friction disc | Reinforced steel backed copper loaded organic sprung disc |
| Pressure plate | Heavy duty single diaphragm design with reinforced drive straps |
| Disc hub | Sprung hub with fully enclosed spring retainers |
| Pressure plate construction | Ductile iron friction plate and heat treated diaphragm spring |
| Balance | Cover assembly dynamically spin balanced |
| Application | Street use and occasional circuit, time attack, or road racing |
| Vehicle | 2017 to 2021 Honda Civic Si with 1.5L L15B7 turbo engine |
| Transmission | Manual |
| Manufacturer part number | ACR-2190 |
| Brand | Action Clutch |
| Condition | New |
What's Included
- One Action Clutch Stage 2 1SC reinforced steel backed copper loaded organic sprung clutch disc
- One heavy duty single diaphragm pressure plate
- One bearing kit
About Action Clutch
Action Clutch develops clutch and flywheel systems for street, track, and race applications. Its staged kits use different friction formulations and pressure plate clamping levels to match different vehicle uses. Verify the engine and transmission before purchase.
FAQ
What is the ACR-2190?This is the manufacturer part number for the Stage 2 1SC clutch kit assigned to the listed Honda Civic Si application.
What Honda Civic vehicles fit this kit?It fits the 2017 to 2021 Honda Civic Si with the 1.5L L15B7 turbo engine and manual transmission. Confirm the vehicle configuration before ordering.
Is this clutch compatible with an automatic transmission?No. The listed application is for a manual transmission. An automatic vehicle uses a different transmission system and clutch application.
Does the kit include a flywheel?No. The existing flywheel must be within specification and suitable for reuse, or it must be replaced before the new clutch is installed.
What friction material does the disc use?The disc uses reinforced steel backed copper loaded organic friction material with a sprung hub. This combination is intended to add grip and heat tolerance while retaining smooth engagement.
Is this kit suitable for daily driving?Yes. The Stage 2 1SC system is intended for street use and occasional circuit, time attack, or road racing. Proper break in is required before hard use.
How should the clutch be broken in?Drive about 500 street miles with engine speed below 4500 RPM and no more than half throttle. Avoid boost when applicable and avoid hard launches until the friction surfaces have seated.
Does the kit include the bearing components?The package includes a bearing kit in addition to the disc and pressure plate. Check the parts against the included instructions before installation.
Does the manufacturer provide a numerical power rating?No numerical power capacity is stated in the available product information. Select the clutch stage for the actual torque and use of the vehicle rather than relying on a generic horsepower estimate.
What warranty coverage applies?Action Clutch publishes a limited one year warranty for eligible purchases from authorized sellers. Coverage is for parts only and excludes normal wear, improper installation, misuse, and labor. Review the current warranty terms before ordering.
Installation Instructions
- Disconnect the battery, raise the vehicle on rated jack stands, and chock the wheels.
- Drain the transmission fluid and disconnect the shift linkage, clutch hydraulics, wiring, and sensors that prevent transmission removal.
- Support the engine, remove the transmission mount and crossmember, then unbolt and lower the transmission clear of the engine.
- Loosen the pressure plate bolts gradually in a criss cross pattern and remove the pressure plate and old disc.
- Remove the flywheel, clean the crankshaft flange, and inspect the rear main seal and pilot bearing.
- Install a serviceable flywheel with the correct hardware and torque sequence. Clean its friction surface with brake cleaner and remove all oil and handling residue.
- Before installation, verify the replacement kit is ACR-2190 and place the disc on the flywheel with the raised hub or marked side facing the direction shown in the instructions.
- Install the pressure plate and tighten its bolts in stages using a criss cross pattern and the specified torque.
- Replace the release bearing and inspect the release fork, pivot, slave cylinder, and input shaft splines. Apply only a light amount of high temperature grease to the splines.
- Reinstall the transmission, mounts, linkage, hydraulics, and wiring. Refill the transmission fluid and bleed the clutch hydraulic system.
- Complete about 500 street miles of moderate driving before hard launches or track use so the friction surfaces seat correctly.
Prop 65 Warning
WARNING: California residents. Cancer and reproductive harm. www.P65Warnings.ca.gov
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