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Pontiac Pavement Pounders Shootout Part II: Canadian Thunder

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Strip Specs
Model: '69 GTO Hardtop
Race Weight:3,959 lbs with 3/4 tank of gasoline
Curb Weight:3,772 lbs with 3/4 tank of gasoline
Engine block: '69 428 H.O., code XF, 4-bolt mains
Cubic inches before/after: 428/455
Compression Ratio:9.5:1
Built By: Owner
Fuel: Sunoco 94
Carburetor: 750 Holley HP, #73 jets front, #78 rear
Intake Manifold: Edelbrock Performer RPM, 1" spacer
Fuel pump: Carter electric, 1/2" fuel line, Mallory fuel pressure regulator
Heads: Edelbrock 87cc, 2.11/1.66 valves
Pistons: '72 455 cast, stock GM
Rods: Cast #541000
Crankshaft: '72 455 standard
Rotating Assembly Balanced: No
Camshaft: Edelbrock dual-pattern hydraulic, 231*/240* duration at .050, .480/.480 lift with 1.65:1 Crane roller rocker arms, R/A-IV pushrods
Lobe Separation: 113.5*
Centerline: 112*
Installed Position: Straight up
Ignition:Electronic, MSD HI-6, ACCEL Super Coil
Total Timing: 34* at 3,000 rpm
Exhaust: Hooker Super Comp headers, Jet Hot coated, 2" primaries, 3.5" collectors, Torque Technnology 3" mandrel-bent exhaust pipes , crossover, 3" Walker Dynomax mufflers
Power Adder: None
Transmission: Turbo 350 automatic by Richard Ennest, Mr, Transmission, Burlington, Ontario using Trans-Go rebuild kit
Shifter: Stock GTO floor shifter
Torque Converter:Markham 10", 3,500 stall
Rear:GM 12-bolt with 4.10 gears and Safe-T-Track
Brakes, Front: Stock '69 GTO discs, 10.9"
Brakes, Rear: 2001 Chevy S-10 rear discs, 11.5" rotor, two-piston aluminum calipers, Wilwood proportioning valve, '76 Corvette master cylinder, TCI roll control
Wheels & Tires, Front: BFGoodrich 225/70-15 on 15x6 Pontiac Rally II wheels, tires inflated to 35 psi
Wheels & Tires, Rear: BFGoodrich Drag Radials, 295/65-15 on 15x7 Pontiac Rally II wheels, tires inflated to 15 psi
Suspension, Front: Stock springs, 1" stabilizer bar with polyurethane bushings and end links, '78 Trans Am steering box and Monroe OE replacement shocks
Suspension, Rear:'69 GTO convertible springs, boxed control arms with '75 Monte Carlo 7/8" stabilizer bar, Energy Suspension bushings, Monroe OE replacement shocks
Chassis Modifications: None
Interior Modifications: Stewart Warner gauges, oil, temp, and vacuum
Exterior Modifications: None
Safety Modifications: Lakewood driveshaft loop, extended wheel studs, OE seatbelts
Launch Technique: Footbrake launch from idle
Best ET/MPH prior to event (1/4 Mile):13.58 at 101
Best ET/MPH prior to event (1/8 Mile): N/A

Strip Tuning Log
Run Tuning Launch RPM Shift Point 60-FT ET/MPH
1. 15 psi, 34* timing Idle 5,900 1.77 12.68/105.22
2. 11.5 psi Idle 6,000 1.74 12.84/104.54
3. Checked timing, 11 PSI Idle 6,000 1.82 12.78/105.09
4. 10 psi 2,000 6,000 1.76 12.66/105.21
5. 10.5 psi 1,500 6,000 1.82 12.77/104.89

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Strip Specs
Year/Model: '94 Trans Am GT
Race Weight: 3,765 lbs
Curb Weight: 3,495 lbs
Engine: Original '94 LT1 2-bolt mains, casting number 10125327
Cubic Inches before/after bore: 350, stock displacement
Compression Ratio: Stock 10.5:1
Built By: GM
Fuel: 94 Sunoco unleaded
Fuel Injectors: Factory 24 lbs/hr
MAF Size: Stock
Throttle Body: Stock twin 48mm
Intake Manifold: Stock LT1
Fuel Pump & Flow Rate: Walbro 255 lph
Heads: Stock '94 aluminum LT1 casting number 10128374, unported, stock 1.94/1.50 valves
Pistons: Stock hypereutectic 4" bore
Rods: Stock powdered metal
Crankshaft: Stock
Rotating Assembly Balanced: No
Camshaft:Stock hydraulic roller, 202*/207* duration at .050, .450/.460 lift with stock 1.5:1 rockers
Lobe Separation: 116*
Ignition: GM Opti-Spark '95, vented with MSD 6A, MSD coil, and 8.8mm wires, stock curve
Exhaust: SLP 1 3/4" primary headers, 3.5" collectors, 3" exhaust pipes, Flowmaster F-car muffler
Power Adder: None
Transmission type: Stock 4L60-E automatic
Torque Converter: Stock
Rear: 10-bolt, 3.23, Safe-T-Track
Brakes, Front: 10.7" front
Brakes, Rear: 11.5" rear
Wheels & Tires, Front: 16x8 SLP takeoffs mounting 245/50-16 Khumo's, 32 psi
Wheels & Tires, Rear: Same as front
Suspension, Front: Stock
Suspension, Rear: Stock, Hotchkis lower control arms and Adjustable Panhard bar
Chassis Modifications: LG Motorsports strut tower brace, SLP Double Diamond Subframe connectors
Interior Modifications: Cool fan switch
Exterior Modifications: SLP Ram Air Hood and Air Box, '98 taillamps
Safety Modifications: None
Custom Computer Programming: None
Launch Technique: Off idle to 1,200 rpm
Best ET/MPH prior to event (1/4 Mile): 13.786 at 101.72 with a 2.2 60-ft
Best ET/MPH prior to event (1/8 Mile):8.913 at 81.06

Strip Tuning Log
Run Tuning Launch RPM Shift Point 60-FT ET/MPH
1. 32 psi in Kuhmo street tires 1,200 5,700 2.07 13.89/101.52
2. Same as above, timer malfunction        
3. Same as above 1,200 5,700 2.24 14.16/99.77
4. Same as above 1,300 5,700 2.39 14.40/98.73
5. Same as above 1,300 5,700 2.45 14.44/99.53


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