Lada engine development
State of the art solutions for the highest performance.
Camshaft installation precautions
- Proper valve spring tension
To reach best forces, the maximum spring travel (when spring wires contact each other) is usually the max lift of the camshaft plus 1.2-1.5mm - Safe piston-valve clearance
There must be at least 1.5-2.0mm clearance at valve overlap.
Warning, valves may have 5mm lift at TDC! - Correct valve clearances according to the table
- Min. 1300-1500rpm idle speed
- High quality, synthetic oil
In order to prevent damage, keeping these instructions is a must!
Havassy Motorsport Lada camshaft table |
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| Type | 272° | 296° | 312° | str. 7,3 | 316°/304° | 316°/304° | 328°/328° | 328°/304° | 316°/328° | 324°/324° | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic material: | Reground from stock camshaft | Spec. steel cam with double heat treatment | |||||||||
| Duration: (degree) | 272° | 296° | 312° | 284 | In.: 316° | In.: 316° | 328° | In.: 328° | In.: 316° | In.: 324° | |
| Ex.: 304° | Ex.: 304° | Ex.: 304° | Ex.: 328° | Ex.: 324° | |||||||
| Base circle: (mm) | 28,2 | 26,3 | 25,4 | 27.5 | 25,3-25,4 | 27,8 | 28,5 | 28,5 | 27,8-28,0 | 26,7-27,0 | |
| Lift: (mm) | 6,3 | 7,2 | 7,4 | 7,3 | In.: 7,8 | In.: 8,5 | In.: 8,1 | In.: 8,1 | In.: 8,5 | In.: 9,3 | |
| Ex.: 7,5 | Ex.: 8,6 | Ex.: 8,1 | Ex.: 8,6 | Ex.: 8,1 | Ex.: 9,3 | ||||||
| Valve lift: (mm) | 9,6 | 11 | 11,3 | 11,1. | In.: 12 | 13 | In.: 12,4 | In.: 13 | In.: 13 | In.: 14,2 | |
| Ex.: 11,5 | Ex.: 12,4 | Ex.: 13 | Ex.: 12,4 | Ex.: 14,2 | |||||||
| Valve clearance, cold, intake: (mm) | 0,15 | 0,20 | 0,20 | 0,15 | 0,20 | 0,25 | 0,20 | 0,20 | 0,25 | 0,18-0,20 | |
| Valve clearance, cold, exhaust: (mm) | 0,15 | 0,20 | 0,20 | 0,15. | 0,25 | 0,30 | 0,23 | 0,28 | 0,23 | 0,20-0,23 | |
| Timing instructions (according to the specified valve clearances, cold) | |||||||||||
| TDC lift intake: | 1,50-1,60 | 2,50-2,60 | 3,10-3,20 | 1,20 | 3,50-3,60 | 4,50-4,70 | 4,60-4,80 | 4,80-5,0 | 4,0-4,20 | 5,30-5,50 | |
| TDC lift exhaust: | 1,50-1,60 | 2,50-2,60 | 3,10-3,20 | 1,20. | 2,10-2,30 | 3,70-3,90 | 4,60-4,80 | 4,30-4,50 | 3,40-3,60 | 5,30-5,50 | |
| Other instructions | |||||||||||
| Min. idle: (RPM) | 800-900 | 1000-1100 | 1200 | 950. | 1200-1500 | 1300-1500 | 1300-1500 | 1300-1500 | 1300-1500 | 1300-1500 | |
| Schrick special valve spring set: | Not required | Suggested | Suggested | no | Required | Required | Required | Required | Required | Required | |
| Machining of the camshaft house: (mm) | 0-1 | 1,8-1,9 | 2 | 1,3 | 2,1-2,3 | 0-1 | 0-1 | 0-1 | 0-1 | 1 | |