Spec 15-16 Chevrolet Camaro 2.0T / 15-16 Cadillac ATS 2.0T Aluminum Flywheel

The SPEC SC20TA is a billet aluminum flywheel for manual-transmission GM cars with the 2.0L turbo four: the Cadillac ATS 2.0T and the sixth-generation Chevrolet Camaro 2.0T. Buyers usually land here for one of three reasons: the factory flywheel is chattering or hot-spotted and has to be replaced during a clutch job, the engine feels lazy to rev between shifts, or the car is getting a SPEC clutch and the owner wants a matched flywheel from the same company. SPEC lists this flywheel at 10 lb.

What the flywheel does in a 2.0T manual car

The flywheel bolts to the back of the crankshaft and gives the clutch disc its friction surface on the engine side. The pressure plate bolts to the flywheel, so the flywheel also sets where the clutch sits inside the bellhousing, and it carries the ring gear the starter engages. Its mass smooths out firing pulses at idle and stores energy that helps the car pull away from a stop. A lighter flywheel stores less energy, so the engine gains and loses rpm faster. On a turbo four that means quicker rev matching on downshifts and less time waiting for revs to drop on upshifts, at the cost of needing a little more throttle to launch smoothly.

Symptoms that send people to this part

• Chatter or judder pulling away in first or reverse, often from a glazed or heat-checked flywheel face
• Blue or dark hot spots and fine cracks on the old flywheel once the transmission is out
• Slip that comes back soon after a new disc was installed against an old, unresurfaced flywheel
• A slow, heavy feel between shifts that owners want to sharpen after an engine tune
• Grooves or a lip worn into the friction face that a machine shop cannot clean up within limits

How to confirm before you buy

A flywheel problem does not store a trouble code, so confirm it by feel and inspection. Slip under full load in fourth gear is usually the disc rather than the flywheel, and our slipping diagnosis guide explains the load test. Chatter on takeoff with a healthy disc points toward the flywheel surface, and the clutch chatter guide covers worn engine mounts and oil contamination that cause the same shudder. If the transmission is already out, check the face for cracks, heat checks and grooving. A cracked flywheel gets replaced, never resurfaced.

Fitment

Our listing title reads 2015-2016 Camaro 2.0T and 2015-2016 ATS 2.0T. SPEC's own catalog for SC20TA is broader and more precise: it lists the Chevrolet Camaro I-4 2.0T from 2016 through 2023 and the Cadillac ATS from 2015 through 2019. The 2.0T Camaro only arrived with the sixth generation, so a 2015 Camaro is not a 2.0T car and this flywheel does not fit it. It is for manual cars only; automatic cars use a flexplate. A car with the 3.6L V6 or a V8 needs a different flywheel. When in doubt, send us your year and VIN before ordering, and browse the hard parts collection for other drivetrain pieces.

Install notes

• The transmission has to come out, so this is normally done together with the clutch. SPEC lists its SC201-2 Stage 1 clutch kit for the same Camaro 2.0T and ATS applications.
• These cars use a concentric slave cylinder with the release bearing built in. Replace it while the gearbox is out; our Camaro clutch slave cylinder and bearing is listed for this job.
• Clean the crank flange and the flywheel mating face completely, and use new flywheel bolts if the service manual calls for them.
• Torque the flywheel bolts and pressure plate bolts in a cross pattern to the factory spec with an accurate click torque wrench. Do not guess at the numbers.
• Wipe the friction face with brake cleaner before fitting the clutch so no oil or fingerprints remain.
• Bleed the hydraulics with the fluid GM specifies on the reservoir cap, then follow the clutch maker's break-in before hard launches.

Expect a slightly busier feel at idle and a need for a touch more throttle when pulling away on a hill. That is normal for a lighter flywheel and most drivers adapt within a few days.

Does the SPEC SC20TA fit a 2015 Camaro?

No. The 2.0L turbo Camaro started with the sixth generation. SPEC lists SC20TA for the Camaro I-4 2.0T from 2016 through 2023 and the Cadillac ATS from 2015 through 2019, manual transmission only.

Will it fit the Camaro 3.6L V6 or an ATS 3.6?

SPEC lists this part for the 2.0T four-cylinder applications. V6 and V8 cars use different flywheels, so confirm your engine before ordering or send us your VIN.

How much does it weigh?

SPEC lists the SC20TA at 10 lb. We do not quote a factory flywheel weight because we could not verify one from GM.

What should I replace at the same time?

The clutch disc and pressure plate, the concentric slave cylinder with its release bearing, and the flywheel bolts if the manual calls for new ones. SPEC lists its SC201-2 Stage 1 kit for the same cars.

Will a lighter flywheel make the car harder to drive?

Most owners notice quicker revs and a slightly busier idle. Pulling away needs a little more throttle, especially on hills, but daily driving is normal once you are used to it.

Does it need a relearn after install?

There is no transmission relearn for a manual clutch job. Bleed the clutch hydraulics properly and follow the clutch break-in period before hard use.

• How to Diagnose Transmission Slipping
• Shift Flare vs. Slip: How to Tell Them Apart
• Automatic vs. Manual Transmission Repair Cost