FREE TOOL · CAM MATH
Cam timing + LSA
From intake centerline and exhaust centerline, compute lobe separation angle (LSA), advance and overlap. Race cams: 105-108° LSA (lots of overlap). Street cams: 112-115° LSA.
LSA reference
| LSA | Use case | Idle quality |
|---|---|---|
| 105-107° | Race / drag | Lumpy |
| 108-110° | Track-day | Rough |
| 110-112° | Performance street | Slightly lumpy |
| 112-114° | Aggressive daily | Smooth |
| 114-118° | OEM / daily | Smooth |