Engine Specs - S65 Camshafts

Understanding Camshaft Specifications

Diagram: © Copyright Schrick

Explanations of the listed technical data
The opening angle and timing are minus the ramps indicated. The timings are given in EÖ (inlet opens in crankshaft degrees before TDC), ES (Inlet closes in ° after UT), AO (outlet opens in ° CA before BDC) and AS (Exhaust closes in ° CA after TDC). The spread is measured in °KW and describes the angular distance between outlet and ???. Inlet center of the gas exchange TDC (top Dead center). All valve lift values are excluding the valve clearance specified, that the actual Valve lift is smaller by the valve clearance. Since hydraulic cams have no clearance, match the strokes indicated to the actual Elevation values.

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Factory Camshaft Specifications

	MM	SAE
Base Circle	30.000	1.1811
Lift	12.000	0.4724

Intake Open	-1.000	ATDC
Intake Close	102.000	ABC
Exhaust Open	81.500	BBC
Exhaust Close	14.000	ATC

Schrick '284' Camshaft Specifications

	Base Circle: MM (SAE)	Lift: MM (SAE)	Opening Angle (° CA)	Spread	Intake Opens	Intake Closes	Exhaust Opens	Exhaust Closes
Intake Cam	30.000 (1.1811)	12.000 (0.4724)	284	132-74	12	90	68	36
Exhaust Cam	30.000 (1.1811)	12.000 (0.4724)	284	134-86	96	8	48	56

Schrick '292' Camshaft Specifications

	MM	SAE
Base Circle	30.000	1.1811
Lift	11.400	0.4488

Intake Open	-1.000	ATDC
Intake Close	102.000	ABC
Exhaust Open	81.500	BBC
Exhaust Close	14.000	ATC