Manufacturer:	Porsche					Class: C
Model:		356B/1600 Super 90
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DESCRIPTION:
	Steel Coupe, Cabriolet, Roadster and Hard Top
	Dry Weight:
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ENGINE:	Type ..............	4 cyl ohv opposed
	Bore & stroke .....	3.25" x 2.91"
	Capacity ..........	1582 cc
	Comp ratio ........	9.0-9.5:1
	Head material .....	Aluminum Alloy
	Port size .........	Intake 1.458", Exhaust 1.11" @ inner valve seat
	Piston material ...	Aluminum Alloy
	Piston weight .....	13.08 oz
	Timing data:		
		Intake ....	Open 15° BTDC, Close 50° ABDC
		Exhaust ...	Open 50° BBDC, Close 15° ATDC
				-or-
		Intake ....	Open 19° BTDC, Close 54° ABDC 	(Roller Crank)
		Exhaust ...	Open 54° BBDC, Close 19° ATDC	(engines only)
	Valve lift: .......	Intake: 0.378", Exhaust 0.364"
	Valve head dia:
		Intake ....	1.575"
		Exhaust ...	1.22"
	Valve spring ......	Outer 83.7 lb @ 1.247" (38.2Kg @ 31.7mm)
				Inner 34.2 lb @ 1.185" (15.5Kg @ 30.2mm)
	Carburation .......	Two Solex 40 PII-4
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TRANSMISSION AND DRIVE TRAIN:
	Ratios:	
		1	11:34	12:33
		2	17:30	16:31	15:32	18:29
		3	23:26	22:27	20:27	18:29
		4	27:22	25:24	24:25	23:26	20:27
		5
	Final drive ratios: 4.428(31/7), 4.857(34/7), 5.167(31/6)
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CHASSIS
	Wheelbase ...................	82.7"
	Track dimension, front ......	50.8"
	Track dimension, rear .......	49.2"
	Shock absorber ..............	Telescopic
	Steering ratio ..............	16:1
	Brakes ......................	Drum type, total lining area=121.4 in sq
	Tire size ...................	5.90 x 15, 165 x 15
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APPROVED OPTIONAL EQUIPMENT
	Limited-slip differential
	80 Litre fuel tank
	Induction venturi
	Center-lock wheels
	Bucket sports seats
	Compensating spring (rear axle)
	Light-weight wheels
	HD Sway bar (16mm)
	Large front brakes (60mm wth ventilated backing plates)
	Magnetic oil filter with centrifugel valve
	Valve cover with ball check
	Large oil pump
	Centrifugal oil pickup

	Notes:	No Super pistons allowed in 1600 Normal
		No Super-90 pistons allowerd in 1600 Super
		Connecting Rod weights:	1600 Normal = 14.98 oz
					1600 Super = 15.16 oz
					1600 Super-90 = 16.57 oz
		Flywheel weights: 1600 Normal, Super, and Super-90 = 17.79 lbs