If you recall from last month’s issue, High Performance Pontiac brought its Pavement Pounders Shootout to Norwalk, Ohio, in August 2011 for an action-packed day of drag racing at Summit Motorsports Park. This month, we spotlight two more hobbyist racers who came to the event to beat their previous best e.t’s. The first is a classic musclecar that ran 16.10s when his owner bought it, and he has significantly improved its e.t.’s since then; the second is an iconic example of one of Pontiac’s late-model, heavy-hitting Birds that left the roost to get itself juiced.
Let’s meet the racers.
Shawn Genge of Edmonton, Alberta, Canada, traveled 4,000 miles round-trip to tear up the tarmac in his ’66 GTO. It features a stroked 421 with Edelbrock heads, a Turbo 400, and 3.55 gears.
Rick Geiger of Ortonville, Michigan, loves the look of ’98-’02 Trans Ams, which led him to his ’01 Trans Am WS6. It has a factory-issued LS1, “853” heads, 3.23 gears, a performance rebuild on its 4L60E, and a two-stage nitrous system.
Summit Motorsports Park’s temperature ranged from 77 to 81 degrees. Barometric pressure was 29.95 hg; the dew point was 70 degrees. The track is 853 feet above sea level, and density altitude ranged from 2,504 to 2,741 feet; we give each racer his own correction factor based on density altitude at the time of his best pass. The density altitude worked out to 2,741 feet for both racers. The correction factors are designed to chart the theoretical best performance at sea level and are done on the best pass only based on e.t.
Race Weight With Driver:
Fuel Level When Weighed:
’66 code-YH 421
Cubic Inches Before/After:
Engine Built By:
Edelbrock Torker II, port-matched
Holley, set to 7 psi
Casting: Edelbrock, 87cc
300 cfm (intake)
Ferrea SS, 2.11 / 1.77-in
Ross forged-aluminum, flat-top, 4.15-in
Total Seal, file-to-fit, 1⁄16-, 1⁄16-, 3⁄16-in
Eagle H-beam, forged-steel, 6.625-in
Stock Pontiac 455, 4.21-in stroke
Rotating Assembly Balanced:
Comp Cam hyd. roller
Duration at 0.050:
245 / 252-deg
306 / 314-deg
Lift with Specified Rocker Arms:
0.600 / 0.600-in
Lobe Separation Angle:
Harland Sharp 1.5:1
MSD Blaster 2
Rpm That Total Timing is Reached:
Goerlich, 3.00-in tailpipes
TCI 10-in, 3,200-stall
Rear Gear Ratio:
Chassis and Suspension
11-in disc / 9-in drum
Rally ll 15x7 / Weld Draglite 15x81⁄2
BFG T/A Radial 225/60R15 / M/T Street 27.5x10x15
Tire Pressure F/R:
2-in drop spindles
Moroso Drag 90/10
Stock upper, boxed lower
CalTrac traction bars
Royal Bobcat decals
Footbrake to 1,500
Best 1⁄8-mile ET/MPH Prior to Event:
7.49 / 92.67
Best 1⁄4-mile ET/MPH Prior to Event:
11.49 / 114.73
Shawn, a 46-year-old catering operations manager, has been racing for seven years. He bought his GTO in 2000. “I wanted to build a GTO to look stock but run very strong,” he says. It’s special to him because “You don’t see Iris Mist on many ’66 GTOs, since it was a ’65-only color.” Shawn also owns an ’02 Firehawk convertible; it was the first one built for sale in Canada. Pictured here are Shawn and his crew/friends Carlos Velasquez and John Damph.
Strip Tuning Log
|1. 45-deg timing, 15 psi in rear tires, 81/88 jets
|2. Remove air cleaner, open exhaust dumps, 78/83 jets
|3. 36-deg timing, 78/86 jets,
|4. 81/88 jets
|Best Pass Corrected
|Run Notes: 1) Bogged off line; 2) Checked timing, which was 26-deg initial, retarded it to 14 deg, lazy on top end; 3) Pulled better; 4) Good run; 5) Cooled car with ice, and ran great.