ACT 1990 Eagle Talon XT/Perf Street Sprung Clutch Kit
ACT MB1-XTSS is the street clutch for a turbo DSM that has outgrown its factory clutch but still has to drive to work. It fits the 1990 Eagle Talon named on this listing and, per ACT, the 1990-1998 Talon 2.0L turbo, the 1990-1999 Mitsubishi Eclipse 2.0L turbo (4G63T) and the 1990-1994 Plymouth Laser 2.0L turbo, front or all-wheel drive. If your Talon TSi or Eclipse GSX flares the tach when boost hits in third, smells hot after a hard pull, or chatters on takeoff, this is the step up that keeps an organic street disc.
The kit pairs ACT's Xtreme pressure plate with a sprung Performance Street organic disc. The Xtreme plate uses a stronger diaphragm to raise clamp load and reduce deflection at high rpm, so the clamp does not fade as the 4G63 winds out. The disc is a full-face organic with high copper content for heat transfer and a steel-backed lining for burst strength, and the sprung hub soaks up driveline shock that a rigid hub would pass to the transaxle.
ACT rates MB1-XTSS at 415 ft-lb at the crank, 64 percent over the factory clutch, on a 224 mm (8.8 in) disc with a 0.875 in input spline. The kit contains the MB010X Xtreme pressure plate, the 3000303 Performance Street sprung disc, the AT20 alignment tool and the RB210 release bearing, and weighs 12.3 lb. ACT describes the feel as moderate to heavy pedal effort, smooth engagement and OE to mild gear rattle. Its FAQ says Xtreme plates raise pedal effort about 50 to 80 percent depending on the car, so expect a firm pedal in traffic.
Rule out the release side first, since DSMs commonly wear the clutch fork and pivot ball. Bleed the hydraulics and check that the pedal returns fully so the plate clamps all the way. Look for oil at the bellhousing seam from the rear main seal, which ruins any new disc. Then do a low-rpm, full-throttle pull in third and watch whether the tach runs ahead of road speed. Our slipping diagnosis guide covers that test, and flare versus slip helps tell a real slip from a missed shift.
Our listing is titled for the 1990 Eagle Talon. ACT's application list for MB1-XTSS also includes the 1991-1992 Galant VR-4, 1991-1999 3000GT and 1991-1996 Stealth non-turbo 3.0L front-drive cars, the 1996-2005 Eclipse 2.4L and several 2.4L Chrysler, Eagle and Plymouth models. Early DSMs from 1990 to 1992 and later cars from 1992 to 1999 share this clutch but use different flywheels and crank bolt patterns, and many older cars have had engines swapped. The flywheel on your crank decides what bolts up, so send us your year, VIN and engine if unsure. Need more holding power for launches? The MB1-XTG6 six-pad race kit uses the same Xtreme plate. Lighter street use is covered by the MB1-HDSS Heavy Duty kit, and more parts are in our rebuild kits section.
| Brand | ACT |
| Part number | MB1-XTSS |
| Fits | ACT 1990 Eagle Talon XT/Perf Street Sprung Clutch Kit |
| Vehicle fitment | Eagle Talon Xt/Perf (1990) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
ACT lists it for 1990-1992 and 1992-1999 turbo Talon, Eclipse and Laser cars, so the clutch covers both. The flywheel is what changes with the crank, so match your flywheel to your engine.
The MB010X Xtreme pressure plate, the 3000303 Performance Street sprung disc, the AT20 alignment tool and the RB210 release bearing.
ACT rates it at 415 ft-lb at the crank, 64 percent over the factory clutch. For hard drag launches on more power, step up to the MB1-XTG6 six-pad kit.
ACT describes it as moderate to heavy. Its FAQ puts the increase for Xtreme pressure plates at about 50 to 80 percent over stock depending on the car.
ACT recommends 300 to 500 miles of mild driving, such as stop-and-go city traffic, before racing or spirited driving, without overheating the clutch.
