Strip Specs
Year/Model: ’02 Trans Am WS6
Race Weight With Driver: 3,815 lbs
Curb Weight: 3,655 lbs
Fuel Level When Weighed: 1/2-tank
Fuel: 93-octane
Engine: LS1
Cubic Inches Before/After: 346/346
Engine Built By: GM
Induction System
Air Box: SLP Flowpac
Throttle Body: Stock, 75mm
MAF: Stock, 75mm
Injectors: Stock 28-lb/hr
Intake Manifold: Stock GM LS6
Fuel System
Pump: Racetronix in-tank, 255-lph
Lines: Stock
Regulator: Stock in-tank, 58-psi
Heads
Casting: No. 243 (LS2)
Head Porting: No
Flow Numbers: Unknown
Valves: Stock 2.00/1.55
Bottom End
Pistons: Cast-aluminum, 3.90-in
Rings: Stock
Rods: Stock powdered-metal steel
Compression Ratio: 10.5:1
Crankshaft: Stock nodular-iron, 3.62-in stroke
Rotating Assembly Balanced: Factory
Camshaft
Brand: Comp Cam XER hydraulic-roller
Duration at 0.050: 224 / 230-deg
Duration Advertised: 273 / 279-deg
Lift with Specified Rocker Arms: 0.581 / 0.592-in
Lobe Separation Angle: 114-deg
Installed Position: Straight up
Rocker Arms: Stock 1.7:1 with trunion upgrade
Ignition
Coil: Stock coil near plug
Wires: MSD 8mm
Spark Plugs: NGK TR6 (motor), BR7 (nitrous)
Total Timing: 26-deg (motor), 20 to 24-deg (nitrous)
Rpm That Total Timing is Reached: 3,600
Exhaust
Headers: Kooks
Primaries: 1.875-in
Collectors: 3.00-in
Exhaust Pipes: Kooks off-road Y-pipe
Mufflers: Magnaflow after-cat
Crossover: None
Power Adder: Nitrous Outlet 78mm plate kit with FJO progressive controller, jetted for 150 rwhp (0.062 nitrous jet)
Drivetrain
Transmission: FLT Level 5 4L60E
Converter: Yank SS4000, 9.5-in, 4,000-stall
Shifter: Stock
Rear: Moser 12-bolt
Rear Gear Ratio: 3.73:1
Posi: Wavetrac
Axles: Moser, 35 spline
Chassis and Suspension
Brakes F/R: Stock disc
Wheels F/R: Stock Firebird 16x8 aluminum five-spoke
Tires F/R: Aurora 245/50R16 / Mickey Thompson ET Street Radial 255/50R16
Tire Pressure F/R: 45 psi / 20 psi
Suspension Front
Springs: Stock
Shocks: KYB AGX single-adjustable, set at 2
Control Arms: Stock
Stabilizer Bar: Stock 36mm
Other Features: None
Suspension Rear
Springs: Stock
Shocks: KYB AGX single-adjustable, set to 5
Control Arms: UMI chromoly adjustable torque arm and UMI chromoly lower arms/Panhard rod with roto-joints
Stabilizer Bar: UMI 1.25-in adjustable drag bar
Other Features: None
Chassis Mods: UMI chromoly three-point subframe connectors
The Rest
Interior Mods: Dual gauge pod with AEM wide band and Aeroforce Interceptor
Exterior Mods: Removed Trans Am door emblems and WS6 rear emblem, added charcoal Blackbird-style hood stripes
Safety Mods: Driveshaft loop
Color: Sunset Orange Metallic
Launch Technique: Varies from 900 to 2,500-rpm footbrake
Best 1/8-mile ET/MPH Prior to Event: 7.32 / 92.09
Best 1/4-mile ET/MPH Prior to Event: 11.59 / 115.99 (Best times are motor only.)
Steven, a 31-year-old NYPD auto mechanic, has been racing for 14 years. He purchased his ’02 Trans Am in December 2010--he "wanted a Sunset Orange Metallic WS6." Why? "Because it looked aggressive." He says his favorite moments in it "are still to come, since I’ve only owned it a short time." Steven also owns an ’89 Trans Am GTA, an ’89 20th Anniversary Trans Am Turbo, and a ’98 Trans Am in the rare color of Bright Green Metallic.
Strip Tuning Log |
| Run/Tuning |
Launch RPM |
Shift Point |
60-foot |
1/8-mile |
1/4-mile |
| 1. 26-degrees timing |
950 |
6,400 |
1.62 |
7.64/88.96 |
12.07/110.84 |
| 2. Same |
950 |
6,400 |
1.62 |
7.63/88.94 |
12.06/110.82 |
| 3. Same |
2000 |
6,400 |
1.59 |
7.58/89.29 |
11.99/111.07 |
| 4. 24-deg timing, NGK TR7 plugs, 50-shot of nitrous |
2000 |
6,400 |
1.57 |
7.34/92.80 |
11.59/115.49 |
| 5. 20-deg timing, NGK TR7 plugs, 50-shot of nitrous |
2,000 |
6,500 |
1.55 |
6.97/99.08 |
10.95/122.43 |
| Best Pass Corrected |
10.61/126.40 |
| Run Notes: 1) Clean pass; 2) Same 3) Launched harder, good 60-foot, good run for weather conditions; 4) First nitrous run;; 5) First 10-second pass ever. |