Street vs Heavy Duty vs Extreme vs Race (Sprung vs Rigid Explained)

Upgrading the clutch in your 2016–2024 Chevrolet Camaro LT1, SS, or ZL1 is one of the most critical decisions you’ll make once you start adding power.

Whether you're running bolt-ons, a cam package, a pulley upgrade, or building a 1,000+ horsepower drag car, the factory clutch will eventually become the weak link.

That’s where ACT’s Mod-Twin 10.5” twin-disc clutch lineup comes in.

ACT offers eight different clutch variants for 6th Gen Camaro platforms — and choosing the correct one depends on:

• Horsepower goals
• Driving style
• Street vs strip usage
• Engagement preference
• Torque capacity needs

This guide breaks down all eight options and helps you confidently choose the right clutch for your build.

Why Upgrade to a Twin Disc Clutch?

The stock single-disc clutch has limited torque capacity. Once you increase power, you risk:

• Clutch slip
• Excessive heat buildup
• Poor engagement
• Reduced reliability

ACT’s Mod-Twin 10.5” twin-disc design doubles the friction surface area compared to factory setups. This allows:

• Increased torque capacity
• Better heat dissipation
• Improved clamp load
• Greater reliability under load

Now let’s break down the ACT lineup.

Understanding ACT’s Naming Structure

Before comparing part numbers, here’s how ACT organizes its clutch lineup:

• T1 = Heavy Duty
• T2 = Extreme (Higher Clamp Load)
• S = Sprung Hub
• R = Rigid (Unsprung Hub)
• SS = Heavy Duty Street
• RS = Sprung Race

STREET-FOCUSED OPTIONS

These are best for daily-driven Camaros and street performance builds.

T1S-G20 – Mod-Twin Sprung Street Clutch

Best For: Bolt-on LT1 or mild LT4 builds
Driving Style: Daily driven, spirited street use

• Twin-disc design
• Sprung hub for smooth engagement
• Increased torque capacity over stock
• Excellent drivability

If you're running headers, intake, tune, or mild boost, this is your ideal entry-level twin-disc upgrade.

T1SS-G20 – Heavy Duty Sprung Street Clutch

Best For: Cammed LT1 or pulley-upgraded LT4
Driving Style: Street + occasional strip

• Higher clamp load than T1S
• Improved torque holding
• Still daily-drivable

This is one of the most popular upgrades for 700–850+ HP builds.

EXTREME STREET / STREET-STRIP OPTIONS

For higher horsepower combinations.

T2S-G20 – Extreme Sprung Street Clutch

Best For: High-horsepower street builds
Driving Style: Aggressive street/roll racing

• Higher clamp load than T1 variants
• Increased torque capacity
• Sprung hub maintains drivability

Ideal for built LT1 or boosted LT4 combinations pushing serious torque.

T2SS-G20 – Extreme Heavy Duty Sprung Clutch

Best For: High torque LT4 builds
Driving Style: Street/strip dominant

• Higher torque capacity than T2S
• Strong engagement characteristics
• Designed for aggressive power delivery

For customers pushing power levels that exceed traditional heavy-duty limits.

RACE-ORIENTED (SPRUNG) OPTIONS

For track-focused builds that still want limited driveline cushioning.

T1RS-G20 – Heavy Duty Sprung Race Clutch

Best For: Street/strip & road course builds

• Faster engagement than street variants
• Sprung hub reduces shock
• Race-oriented performance

Great middle ground between street-friendly and full race.

T2RS-G20 – Extreme Sprung Race Clutch

Best For: High-horsepower competition builds

• Higher clamp load than T1RS
• Extreme torque capacity
• Sprung hub for controlled engagement

Perfect for 900+ HP drag or track builds that still need some driveline protection.

FULL RACE (RIGID HUB) OPTIONS

Rigid hub = immediate engagement = maximum power transfer.

These are not daily-driver-friendly.

T1R-G20 – Heavy Duty Rigid Race Clutch

Best For: Drag racing & dedicated competition

• Rigid hub
• Direct power transfer
• Aggressive engagement

Ideal for race-only builds.

T2R-G20 – Extreme Rigid Race Clutch

Best For: Maximum horsepower race builds

• Highest clamp load in lineup
• Rigid hub design
• Designed for extreme torque

For built engines and high-boost LT4 applications where nothing else will hold.

Sprung vs Rigid: What’s the Difference?

If you daily drive your Camaro → Choose Sprung
If it’s track-only → Consider Rigid

Heavy Duty vs Extreme

Quick Selection Guide

• Daily Bolt-On LT1 → T1S
• Cammed LT1 / Mild Boost LT4 → T1SS
• Aggressive Street Build → T2S
• Street/Strip High HP → T2SS
• Track-Focused Sprung → T1RS or T2RS
• Full Race Build → T1R or T2R

Final Thoughts: Choosing the Right ACT Clutch for Your Camaro

The right clutch depends entirely on:

• Horsepower
• Torque output
• Intended use
• Driving style

Upgrading to the proper ACT Mod-Twin clutch ensures:

• Reliable power transfer
• Reduced slip
• Consistent engagement
• Long-term durability

If you're unsure which clutch is right for your Camaro build, reach out to our team, and we’ll match you with the correct torque tier for your power goals.