Community-run since the first grip-tape splitter
Build threads, tuning notes and aero data from time attack racers, plus leaderboards for five circuits and a marketplace for the parts you're done arguing about.
Forums
Full project logs from bare shell to grid-ready time attack car.
Mapping, boost control, cooling, and drivetrain tuning discussion.
Splitters, wings, diffusers, coilovers, and geometry setup.
Compound choice, pressures, brake pad and fluid selection.
Fresh from the forums
Leaderboards
Purple sectors mark the outright fastest of the session, yellow marks a driver's own best.
Eastern Creek, NSW, Australia · 3.93 km / 2.44 mi, Gardner GP layout
Bathurst, NSW, Australia · 6.21 km / 3.86 mi, full GP circuit
Ibaraki, Japan · 2.045 km / 1.27 mi
Eifel, Germany · 20.83 km / 12.94 mi, Industriefahrten config
Buttonwillow, California, USA · 3.34 km / 2.07 mi, CW13 layout
Marketplace
Aero, suspension, tires and engine parts, listed by members who've already run them on track.
Browse Marketplace