1996 Pontiac Firebird Formula Specifications

Engine:

Configuration:: Longitudinally mounted 90-deg, V8, Iron block and Aluminum heads. Cast iron crankshaft and two bolt main bearing caps.
Bore x Stroke:: 101.6mm x 84.0mm (4.00" x 3.48")
Bore spacing:: 4.4"
Rod-length-to-stroke ratio:: 1.63:1
Displacement:: 5733cc/350cid
Compression Ratio:: 10.4:1
Horsepower:: 285 @ 5000 rpm
Torque: 325 lbs/ft @ 2400 rpm
Maximum rpm:: 5700 rpm
Lubrication system:: PF25 oil filter, windage tray
Cooling system:: reverse flow, dual electric fans, 180 degree thermostat, aluminum radiator.
Valvetrain:: OHV, 1.5:1 rocker arms
Springs:: 373 pounds per inch
Camshaft:: hydraulic roller. Durations (@.50) are 201(I) and 208(E), lifts are .447(I) and .458(E), lobe separation is 117 degrees.
Heads:: reverse flow cooling, 53cc combustion chamber, @.400-inch valve lift 203 cfm (I) and 152 cfm (E)
Fuel system:: Sequential electronic port fuel injection
Intake manifold:: Tuned length (short) aluminum runners, aluminum plenum chamber
Throttle body:: 48mm bore throttle body
Exhaust manifolds:: cast iron, siamesed, 1 1/2" dia.
Exhaust system:: Dual catalytic converters, 2 3/4" intermediatte pipe, 2 1/2" tailpipes with dual exit muffler.

Drivetrain:

Rear Axle:

7.5 in.10 bolt, limited slip diff

Gear		ratio		(Rpm)	speed	
1		2.66		(5700)	46.6
2		1.78		(5700)	69.7							
3		1.30		(5700)	95.4
4		1.00		(5700)	124.0
5		0.74		(5350)  157.2 (drag limited)
6		0.50		(3610)  157.2 (drag limited)

Final Drive:  3.42

Suspension:

Front:

upper and lower control arms, coil springs; 292 lb/in, DeCarbon gas shocks, 30mm anti-roll bar.

Rear:

live axle, dual lower trailing links, torque arm, Panhard rod, coil springs; 114 lb/in, DeCarbon gas shocks, 22mm anti-roll bar.

Wheels:

cast aluminum 5-spoke 16" x 8".

Tires:

P245/50ZR16 Goodyear RS-As.

Steering:

Type:

power assisted rack and pinion

Turns, lock to lock:

2.28

Brakes:

Front:

10.9 in. vented discs, vacuum assisted, ABS

Rear:

11.4 in. vented discs, vacuum assisted, ABS

Performance:

Acceleration:
	0-30			2.0 s		
 	0-40			2.8 s
	0-50			4.4 s			
	0-60			5.6 s		
	0-70			7.7 s	
	0-80			9.5 s		
	0-90			11.5 s
	0-100			14.7 s	
	
	1/4 mile		14.2 @98.8mph

Braking:
	60-0			123 ft.		
	80-0 			219 ft.	
	
Handling:
	lateral accel		.86 g	
	slalom speed		60.4 mph						
		
Fuel Economy:
	EPA cty/hwy		17/27 mpg							
	observed		21 mpg	
	fuel capacity		15.4 gal