SCCA Time Trials Guide

SCCA Time Trials Track Day Updated March 2026 · ApexReady

SCCA Time Trials (TT) is competitive track driving — you're on a real circuit, running timed laps, competing against others in the same run group. It's more serious than HPDE and significantly more gear-intensive than autocross. The step from HPDE to SCCA TT is the point where most drivers commit to proper safety gear and a purpose-built track setup.

How TT Differs from HPDE

It's competitive: your times are compared against other drivers in your class. There's a winner.
Higher gear requirements: suits, HANS, and fire extinguisher are required at most run groups
Car prep standards are stricter: tech inspection is more thorough
Passing rules vary: at some groups, open passing is allowed — more like real racing
Classes are based on modifications: similar to SCCA Solo with TT-specific class designations

Gear Requirements by Run Group

Run Group	Helmet	Suit	HANS	Gloves	Extinguisher
TT Touring	SA2015+	Not req.	Not req.	Not req.	Recommended
TT Club	SA2015+	SFI 3.2A/5+	Required	Required	Required
TT Sport	SA2015+	SFI 3.2A/5+	Required	Required	Required
TT Track	SA2020 req.	FIA/SFI multi	Required	Required	Required, mounted

Requirements vary by region — the table above reflects common SCCA TT standards but your specific region may require more or less. Always read your region's supplemental regulations before purchasing gear.

Helmet

SA2020 or SA2015 is accepted at most SCCA TT run groups. SA2020 is required at higher run groups at many regions. M-rated helmets are not accepted. Open-face helmets are typically not accepted at Club level and above.

Best Full-Face for TT Editor's Pick

Bell Sport5 (SA2020)

Excellent SA2020 full-face at a strong price. HANS-compatible, good ventilation, multiple shell sizes. Solid choice for TT Touring through Club.

~$450–$550Bell / Summit

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Driving Suit

TT Club and above requires a multi-layer SFI 3.2A/5 or FIA 8856-2018 suit. SFI 3.2A/1 single-layer suits may be accepted at TT Touring — check your region. Buy for the group you want to run in next, not just where you start.

Best TT Suit

Alpinestars T-GP Plus R v3 (SFI + FIA)

Dual-certified SFI and FIA. Lighter and more breathable than most multi-layer suits. Works from TT Club through national-level events.

~$380–$450Alpinestars / Summit

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HANS Device

Required at TT Club and above. HANS (Head and Neck Support) is the standard restraint used in motorsport worldwide. It connects to the helmet via tethers and prevents the head from moving forward in an impact. A used HANS device from a reputable seller is acceptable if it's undamaged and within service life.

Best HANS for TT

Simpson Hybrid S (SFI 38.1)

Hybrid-style (collar instead of post design) — more comfortable for all-day use. SFI certified, works with most SA-rated helmets.

~$500–$650Simpson / Summit

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TT Car Classes

SCCA TT classes cars differently from Solo. Classes are based on modification level and power-to-weight ratio. Common designations include:

Touring: near-stock, comfort-oriented — the entry point
Club: allowed modifications including coilovers, brake upgrades, aero
Sport: significantly modified, R-compound tires allowed
Track: heavily prepared, slicks, cage requirements begin

Check the SCCA TT rules and your region's supplements for the full class specification.