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Pontiac Pavement Pounders Shootout - Pontiac Heaven/Speedworld Motorplex Edition

Pavement Pounders Speedworld Motorplex 1978 Trans Am Launching Pavement Pounders Speedworld Motorplex Alan Monroe Pavement Pounders Speedworld Motorplex 1978 Trans Am Engine Bay
STRIP TUNING LOG
Run/TuningLaunch RPMShift Pt.60-ft1/8-mile1/4-mile
1. 36-deg timing; M/T drag radials; 22 psi2,0006,500N/AAborted pass
2. Same; new belts; 20 psi in tires2,5006,500N/AAborted pass
3. Same; 19 psi in tires2,5006,2002.38.47/90.1612.81/113.41
4. Same; 18 psi in tires2,5006,0001.657.54/90.8911.85/113.70
BEST PASS CORRECTED11.36/118.66
Run Notes: 1) Threw accessory belts, no traction; 2) Same as first pass except heater core ruptured; 3) Installed only alternator belt, spun on launch backed out of it and got back in it, threw alt. belt; 4) Car hooked! Still threw alt. belt.

STRIP SPECS
Year/Model: '78 Gold SE Trans Am
Race Weight: Approx. 3,975 lbs
Curb Weight: Approx. 3,800 lbs
Fuel Level: N/A
Fuel: Pump gas, 91-octane
Engine: '70 455, bored +0.030
Cubic Inches Before/After: 455/462
Engine Built By: Zimmerman Racing
Power Adder: None
Top End
Air Cleaner: Factory shaker
Carburetor: Holley 850 DP
Jets, Primary/Secondary: #80/#90
Spacer Plate: None
Intake Manifold: Edelbrock Performer
Fuel Pump: Mallory electric 140-gph
Lines: 1/2-in
Regulator: Mallory set to 7 psi
Heads: Edelbrock aluminum 87cc
Head Porting: By Mike Zimmerman
Flow Numbers: Approx. 320-cfm intake
Valves: 2.11/1.66 SS from Edelbrock
Bottom End
Pistons: TRW forged flat-top, 0.030 over
Rings: Sealed Power moly
Rods: Stock cast
Compression Ratio: 10:1
Crankshaft: Stock iron 4.21-stroke
Rotating Assembly Balanced: Yes
Camshaft
Brand: Comp Cams hyd.
Duration at 0.050: 244/244-deg
Duration Advertised: 292/292-deg
Lift with Specified Rocker Arms: 0.501/0.501
Lobe Separation Angle: 110-deg
Installed Position: 4-deg adv
Rocker Arms: Comp Cams 1.50:1 roller
Ignition
Distributor: MSD Pro-Billet
Amplifier: MSD 6AL
Coil: MSD
Wires: MSD 8mm
Spark Plugs: Champion R9YC
Total Timing: 36-deg
RPM Total Timing is Reached:3,500
Exhaust
Headers: Doug Thorley
Primary: 1.875-in
Collector: 3.00-in
Pipes: 2.5-in
Mufflers: Flowmaster
Crossover: 2.5-in
Drivetrain
Transmission: Turbo 400, performance rebuild with shift kit
Converter: Hughes 2,600-stall
Shifter: Lightning Rod
Rear: Stock 10-bolt
Rear Gear Ratio: 3.73:1
Limited Slip: Stock
Axles: Stock
Chassis and Suspension
Brakes F/R: Stock 10.9-in disc/9.5-in drum
Wheels F/R: Stock 15x8 Honeycomb
Tires F/R: BFG T/A 235/60R15 / M/T drag radials 275/60-15
Tire Pressure F/R: 32 psi/19 psi
Suspension Front
Springs: Stock WS6
Control Arms: Stock
Stabilizer Bar: Stock 1.25-in
Shocks: Stock replacement
Suspension Rear
Springs: Stock WS6
Stabilizer Bar: Stock 0.75-in
Shocks: Stock replacement
Chassis Mods: None
The Rest
Interior Mods: All-original
Exterior Mods: Stock
Safety Mods: None
Paint: BASF Solar Gold
Launch Technique: Flash converter to 2,000 rpm, get into it when the lights come down
Best 1/4-mile ET, MPH Prior to Event: 11.8/113


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