Basic Camshaft Calculations - Team Integra Forums - Team Integra
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Basic Camshaft Calculations

Posted 12-01-2002 at 12:00 AM by MichaelDelaney

I. Lobe Separation Angle

LSA = [ C/L in + C/L ex ] / 2

where C/L = Lobe Centerline, in = intake, ex = exhaust


II. Individual Lobe Centerlines


C/L in = [INTAKE CAM DURATION @ 1mm lift /2 ] - INTAKE LOBE OPENING SPEC BTDC


C/L ex = [EXHAUST CAM DURATION @ 1mm lift /2] - EXHAUST LOBE CLOSING SPEC ATDC



III. Opening and Closing Specs


DURATION @1mm lift = OPENING SPEC + CLOSING SPEC + 180

(The number of degrees from TDC to BDC is 180)
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