I just did some 60-0 stopping distance tests and I wanted some opinions on the accuracy of the measurements. Basically, im asking for a sanity check on whether these numbers are reasonable given the setup (stockish 97 LT1 Firebird WS6 with some upgraded pads). The only data i could find searching indicated that between 111-117 ft. is normal for a bone stock car (but i'm not sure if those are for the P245 or P275 tires).

Conditions were clear, no recent rain, 80 degrees, dusk. The road surface was asphalt, no bumps or any irregularities. I did a full bleed of the brake system before i took the measurements.

Tires: 275/40/17 GoodYear Eagle F1 GS-D3
Calipers: Stock 1997 (single piston front and rears)
Rotors: Stock 1997 (11"x1.25" fronts, 11.65x0.81" rears)
Pads: Raybestos Quiet Stop
Vehicle weight: Approx. 3700 lbs with driver
Shocks: stock (ws6) fronts, bilstein rears
Springs: stock (ws6)

I added up the error in the measurements and included that as well. The ABS engaged during all the runs. I did two b2b runs, a 5 min cooldown and two more b2b runs:

Run1: 92 ft. +/- 6ft.
Run2: 112 ft. +/- 6ft.
(5min cooldown)
Run3: 103 ft. +/- 6ft.
Run4: 113 ft. +/- 6ft.

Do these numbers look reasonable?