Drift spec, low duration, low overlap, maximum velocity, for ultimate throttle response. No cylinder head clearancing needed.
Engine Make: Engine Model: Part Number:
NISSAN RB20&25DE/T HL182-A
Valve Clearance: Intake: Set at the
Exhaust: Set at the
Cam Lift: Intake: 9.30mm Exhaust: 9.30mm
Rocker Ratio: Intake: 1 Exhaust: 1
Nett Valve Lift: Intake: 9.30mm Exhaust: 9.30mm
Advertised Duration @ 0.10mm Intake: 262 Exhaust: 262
Duration @ 1.00mm VALVE LIFT Intake: 222 Exhaust: 222
Timing @ 1.00mm VALVE LIFT IVO: 3 BTDC EVO: 45 BBDC
IVC: 39 ABDC EVC: 3 BTDC
Suggested Centre Lines: Intake: 108 Exhaust: 114
VALVE Lift @ TDC Intake: 1.37mm Exhaust: 0.85