William Chen is an amateur racing driver with 22 laps across 13 vehicles, averaging 1.7 laps per car. Distributed testing includes 4 laps Road Course and 4 laps Big Willow, enabling basic comparative assessment across extensive automotive variety.
Track: Willow Springs International Raceway, WSIR
Date: 2/24/24
Lap time: 1:37.029
Weather: ~65F.
Car: 2015 Scion FRS. 110k miles.
Tires: 225/45-17 GT Radial SX2 (86 Cup series title sponsor) on stock 17" wheels
Tire pressure: 43psi front / 33psi rear. hot.
Mods: stock Sach suspension, front camber plates. rear Moog lower control arm (to add camber). Hawk DTC 60 pads front and rear (not good pads, but are very cheap for a trackpad). Car is an 86 Cup Stock class.
Alignment: Camber: -3.5 front and -2.2 rear. zero toe front, tiny toe-in in the rear.
Cooling mod: Jackson Racing oil cooler
note: Car is definitely capable of another second. Pyrometer say it needs a lot more camber front and rear.