Pontiac Pavement Pounders Shootout - Lone Star Edition, Part III
Owner: Shawn & Heather Patterson
Owner Bio
"I bought it for my wife," Shawn Patterson explained. "She said that she wanted a convertible someday so I found one as soon as I could--one week later. The Bird was completely disassembled and in boxes." Shawn, at 39, has been racing for 23 years, but his wife Heather was originally scheduled to drive the car at the HPP shootout. She was a bit too busy, however, having given birth to their daughter Maylee Anne at 6 lbs 1 oz on April 23, 2004--just about a month before the shootout. | Strip Specs | | Year/Model: | '68 Firebird convertible | | Race Weight: | 4,040 lbs | | Curb Weight: | 3,820 lbs | | Fuel Level: | 1/2-Tank | | Type of Fuel: | 92-Octane Texaco | | Engine: | '69 428 | | Cubic Inches Before/After: | 428/462 | | Built By: | Shawn Patterson | | Carburetor: | Holley 850 DP, #78/#88 jets | | Spacer Plate: | 1" | | Intake Manifold: | Performer RPM | | Fuel System: | 110 gph Holley, stock 3/8" line, firewall forward #6 AN line to Holley regulator (set to 7.5 psi) and to carb | | Heads: | 6X-4, ported, 2.11/1.77 Ferrea valves | | Flow Numbers: | 240-/192-cfm at .500 lift at 28" of water | | Pistons/Rings: | SRP forged flat-top/Total Seal | | Rods: | Stock cast, resized | | Compression Ratio: | 9.5:1 | | Crankshaft: | Stock 455 nodular-iron (4.210" stroke) cut .010/.010 | | Rotating Assembly Balanced: | Yes | | Camshaft: | Comp Cams, hydraulic, 230°/236° at .050, .536/.540 (with 1.65:1 rockers), 110° LSA | | Installed Position: | Straight up | | Rocker Arms: | Crane roller, 1.65:1 | | Ignition: | HEI, MSD 6AL | | Total Timing: | 32° at 2,200 rpm | | Exhaust: | Hooker headers, 1.75" primaries, 3" collectors, 2.5" Flowmaster system with crossover and mufflers | | Power Adder: | None | | Transmission: | Turbo 400 previously built, refreshed by Patterson Garage, B&M shift kit | | Converter: | 10" TCI/JBP, 3,000 rpm stall | | Shifter: | Modified T/A ratchet style | | Rear: | Chevy 10-bolt Posi, 3.08 gears | | Brakes F/R: | Stock 10.9" disc/9.5"drum | | Wheels F/R: | 15x7 Rally II/15x8 strip | | Tires F/R: | BFG 235/60-15 / 26x 12.50x15 M/T ET Street | | Tire Pressure F/R: | 35 psi/20 psi | | Suspension Fr: | Stock, Addco 1 1/4" stabilizer bar, Monroe Gasmatic shocks | | Suspension Rr: | 5-leaf springs, Chassis Eng. traction bars, Monroe Gasmatic shocks | | Chassis Mods: | Replaced stock convertible floor reinforcement with a fabricated X-brace under car to fit exhaust | | Interior Mods: | None | | Exterior Mods: | None | | Safety Mods: | None, factory seat belts | | Paint: | Black | | Launch Technique: | Footbrake 2,000 rpm | | Best E.T., MPH Prior to Event: | 12.90/105 |
| Strip Tuning Log | | Run | Tuning | Launch RPM | Shift Point | 60-FT | 1/4 E.T./MPH | | 1 | As arrived | 2,000 | 5,400 | 1.89 | 13.06/104.73 | | 2 | Tires 18 psi, temp 180° | 2,000 | 5,400 | 1.89 | 12.99/104.98 | | 3 | 36° Timing, no vacuum adv. | 2,000 | 5,400 | 1.90 | 12.99/104.89 | | 4 | Added 3-gal 110-octane | 2,000 | 5,200 | 1.94 | 13.08/104.38 | | 7 | Same | 1,500 | 5,400 | 1.90 | 12.98/104.88 | | Five most important runs are listed in the order that they occurred. |
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