Strip Specs
Year/Model: ’01 Firebird Formula
Race Weight With Driver: 3,040 lbs
Curb Weight: 2,835 lbs.
Fuel Level When Weighed: 1⁄4-tank
Fuel: 93 octane
Engine: ’07 LS7
Cubic Inches Before/After: 427/427
Engine Built By: Lingenfelter Performance Engineering
Induction System
Air Cleaner: K&N filter, SLP air lid on WS6 base
Injectors: Siemens Deka S107, 63-lb/hr
Throttle Body: FAST 92mm, cable-driven
Intake Manifold: LS7
Fuel System
Pump: Lingenfelter / Walbro GSS341 255 lph, (in tank)
Lines: Stock
Regulator: Stock
Heads
Casting: LS7 “8452”
Head Porting: Lingenfelter
Flow Numbers: 396-cfm (intake) at 0.690-in / 242-cfm (exhaust) at 0.690-in
Valves: Stock 2.20 (titanium) /1.60 (sodium-filled)
Bottom End
Pistons: LS7 hypereutectic aluminum, 4.125-in
Rings: LS7
Rods: LS7 forged titanium, 6.125-in-length
Compression Ratio: 11.49:1
Crankshaft: LS7 forged steel, 4.00-inch stroke
Rotating Assembly Balanced: Yes
Oiling System: LS7 dry-sump, custom oiler cooler lines
Camshaft
Brand: Lingenfelter (GT21)
Duration at 0.050: 243/259-deg
Duration Advertised: N/A
Lift With Specified Rocker Arms: 0.691/0.702-in
Lobe Separation Angle: 112-deg
Installed Position: Straight up
Rocker Arms: LS7, 1.8:1 ratio
Ignition
System: 2001 LS1 coil near plug
Amplifier: N/A
Coil: LS1
Wires: LS1
Spark Plugs: LS7
Total Timing: 28-deg
Rpm that total timing is reached: 6,400
Other: Lingenfelter LNC-2000 launch controller and TRG-002 58X to 24X crank sensor trigger conversion module
Exhaust
Headers: Kook’s
Primaries: 1.875-to-2.000 stepped
Collectors: 3.50-in
Exhaust Pipes: 3.50-in
Mufflers: Burns Stainless 3.50-in
Crossover: None
Drivetrain
Transmission: Rossler Terminator 3 Turbo 400, reverse-valve body
Converter: ATI 8-MRT 4,600-rpm stall
Shifter: Turbo Action Cheetah
Rear: Strange 12-bolt
Rear Gear Ratio: 4.11
Spool: Strange
Axles: Moser, 33-spline
Driveshaft: . .Dynotech 3.5-in metal matrix composite (MMC)
Chassis and Suspension
Brakes F/R: Strange Pro Steel 10.9-in disc, 4-piston calipers
Wheels F/R: Bogart AlumaLite 15x3.5 / 15x10
Tires F/R: Mickey Thompson 27x4.5x15 / Hoosier radial slicks 30x9 or 10.5, both 29.5-in actual height
Tire Pressure F/R: 42 psi / 20 psi
Suspension Front
Springs: QA1 coilover 14-in, 275-lb/in
Shocks: QA1 Stocker Star coilover, single-adjustable, set to 9
Control Arms: PA Racing chromoly lowers, stock uppers
Stabilizer Bar: None
Other Features: PA Racing chromoly heim-jointed K-member, chain limiters
Suspension Rear
Springs: Stock
Shocks: QA1 Stocker Star, single-adjustable, set to 4
Control Arms: Wolfe Racecraft, chromoly, heim-jointed adjustable
Stabilizer Bar: . . Hotchkis chromoly, hollow, 1.00-in
Other Features: BMR chromoly adjustable Panhard bar, Spohn chromoly adjustable torque arm, wheelie bars
Chassis Mods: Brink Racecraft 12-point cage, NHRA-certified to 8.50 seconds
The Rest
Interior Mods: Summit Racing plastic front seats, rear seats removed, along with A/C, power steering, heater, smog equipment
Exterior Mods: Auto Meter oil temp trans temp gauge, Raptor shift light
Safety Mods: Stroud fire suppression system / window net / camlock harnesses, Simpson helmet, Simpson fire jacket / pants / socks / shoes, HANS Device, SFI-rated drivetrain equipment
Color: Bright Red
Launch Technique: 2,400 on two-step, transbrake
Best 1/8-mile ET/MPH Prior to Event: 5.84/118.40
Best 1/4-mile ET/MPH Prior to Event: 9.23/146.03
Dave Whitten, a 44-year-old chassis engineer for GM’s Arlington, Texas, assembly plant, has been racing for over 28 years. He took delivery of his special-order ’01 Firebird in April 2001. It’s special to him because it was “built on the birth date of his youngest son, and delivered on the third birthday of his oldest son.” Dave also owns an ’04 GTO.
Strip Tuning Logs |
| Run/Tuning |
Launch RPM |
Shift Pt. |
60-ft. |
1/8-mile |
1/4-mile |
| 1. 16 psi in rear tires |
2,400 |
7,200 |
1.33 |
5.99/114.71 |
9.42/143.31 |
| 2. 18 psi in rear tires |
2,400 |
7,200 |
1.30 |
5.96/114.73 |
9.41/142.81 |
| Best Pass Corrected |
9.09/147.85 |
| 3. 13 psi in rear tires; 21⁄2 more gallons fuel |
2,400 |
7,200 |
1.45 |
6.13/114.31 |
9.58/142.72 |
| 4. 13 psi |
2,400 |
7,200 |
1.34 |
6.02/114.03 |
9.47/142.40 |
| 5. Same |
2,400 |
7,200 |
1.35 |
6.04/113.84 |
9.50/142.12 |
| Run Notes: 1) Decent, but not like at sea level; 2) Better 60-foot put e.t. a bit better, but air is worse; 3) Track was running bracket pass in the other lane, crosstalk, red lighted, let off the accelerator, got back in it but 60-foot and e.t. affected; 4) Launched towards left, but controllable; 5) Same. |