Clutch Masters 94-01 Acura Integra 1.8 VTEC / 94-97 Honda Civic Del Sol 1.6L / 99-01 Civic Si FX700
A turbo or nitrous B-series in a 1994-2001 Acura Integra, 1994-1997 Civic Del Sol or 1999-2001 Civic Si can put down far more torque than any single-disc clutch in the factory bellhousing was meant to hold. Clutch Masters 08913-TD7R-S is the FX725 Race twin disc for those cars: two 7.25 inch (184 mm) rigid ceramic discs, a billet pressure plate and a dedicated steel flywheel, aimed squarely at drag racing. Our listing title calls it FX700; Clutch Masters publishes it as the 725 Series Race twin.
The B-series gearbox has a compact bellhousing, which limits how large a single disc can be. A twin-disc pack gets around that by stacking two smaller discs with a floater between them, roughly doubling friction area without needing a bigger diameter. The smaller parts also carry less rotating mass, so the engine revs freely between shifts.
On this kit the cover is machined from billet aluminum and Type 3 hard anodized. Clutch Masters says its billet covers flex only about .003 in under load, against as much as .030 in for a cast or stamped cover, so pedal travel goes into releasing the clutch instead of bending the cover. Its QR quick-release system adds three spring-loaded bolts to the pressure plate so it engages and disengages evenly, which the maker says cuts internal clutch noise and chatter by up to 50 percent. The included steel flywheel is machined from a 1045 billet core and black oxide treated against rust. The TD7R stage uses two ceramic rigid discs; the TD7S Street and Race version swaps one of them for a Fiber Tuff rigid disc for easier engagement.
Make sure the problem is the clutch and that you need race capacity. A slipping clutch shows as engine rpm racing ahead of road speed at full throttle in a high gear. Rule out a weak slave cylinder, air in the hydraulic line or a worn release fork pivot, and fix any oil leak at the crank or input seal before fitting new discs. Our slipping diagnosis guide walks through it. If the car sees regular street miles, Clutch Masters itself says the FX725 is not ideal for the street; the TD7S Street and Race twin or the 725 PRO twin may suit you better.
Clutch Masters lists 08913-TD7R-S for the 1994-2001 Acura Integra 1.8L, VTEC and non-VTEC, the 1994-1997 Honda Civic 1.6L DOHC (the Del Sol VTEC) and the 1999-2001 Civic Si 1.6L DOHC. Type R owners should confirm with us before ordering. Engine swaps are common on these chassis, so match the transmission to the B-series hydraulic gearbox the kit is built for, or send your year, VIN and engine details.
Torque the steel flywheel to the crank in a crisscross pattern, then stack the discs and floater in the order shown in the Clutch Masters instructions, using an alignment tool to center both discs on the input shaft; a clutch alignment tool kit makes that easier. Draw the pressure plate down evenly. Clutch Masters sells a replacement release bearing separately, so inspect the old one and the fork pivot ball while the gearbox is out. Bleed the hydraulics with fresh brake fluid, and expect more gear rattle at idle than stock. Break-in matters with ceramic discs; see our clutch break-in guide, and for a comparison of multi-disc and single-disc clutches read twin disc vs single disc. For budget planning, the manual transmission repair cost guide lays out typical labor.
| Brand | Clutch Masters |
| Part number | 08913-TD7R-S |
| Fits | Clutch Masters 94-01 Acura Integra 1.8 VTEC / 94-97 Honda Civic Del Sol 1.6L / 99-01 Civic Si FX700 |
| Vehicle fitment | Acura Integra 1.8 Vtec (1994-2001) |
| Type | Clutch Kits - Multi |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
Clutch Masters lists the 1994-2001 Acura Integra 1.8L VTEC and non-VTEC, the 1994-1997 Civic 1.6L DOHC (Del Sol VTEC) and the 1999-2001 Civic Si 1.6L DOHC. Type R owners and swapped cars should send us details to confirm.
Clutch Masters says the FX725 is not ideal for the street because of its low rotating mass and race focus, though it can handle occasional street driving. Expect firm engagement and more gear rattle at idle.
TD7R, this kit, uses two rigid ceramic discs for maximum holding. TD7S, the Street and Race stage, uses one ceramic and one Fiber Tuff rigid disc for smoother engagement.
Yes. The kit includes a Clutch Masters steel flywheel machined from 1045 billet and black oxide treated. The twin disc pack requires its matching flywheel.
That is the catalog name in our listing. Clutch Masters publishes this part number as its FX725 725 Series Race twin disc, named for the 7.25 inch disc size.
