Cams
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OEM
| S4 | RS4 | NA 2.8 | |||||
|---|---|---|---|---|---|---|---|
| I | E | I | E | I | E | ||
| duration | [1.0mm] | 190° | 226° | 210° | 226° | 210° | 226° |
| valve lift | 7.5mm | 8.2mm | 8.8mm | ||||
| peak angle | 110° | 110° | 112° | 112° | |||
| timing | [1.0mm] | -10/20° | 38/8° | 38/8° | -12/42° | 38/8° | |
Aftermarket
| CAT | Revolver | Piper | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1004050 | 1004051 | 001 grind | 002 grind | Mild | Race | ||||||||
| I | E | I | E | I | E | I | E | I | E | I | E | ||
| Duration | [0.1mm] | 239° | 245° | 267° | 280° | 248° | 258° | 200° | 210° | ||||
| Duration | [1.0mm] | 214° | 220° | 226° | 232° | 256° | 256° | 244° | 274° | ||||
| Valve lift | 8.80mm | 10.85mm | 9.25mm | 11.00mm | 8.9mm | 10.5mm | 7.7mm | 9.7mm | 8.26mm | 9.44mm | 8.69mm | 10.93mm | |
| Peak angle | 110° | 110° | 110° | 110° | 110° | 110° | 110° | 110° | 110° | 110° | 104° | 108° | |
| Timing | [1.0mm] | -3/37° | 40/0° | 3/43° | 46/6° | -10/20° | 38/8° | -10/20° | 38/8° | 18(?)/58° | 58/18° | 18(?)/46° | 65/29° |
| Lift at TDC | 0.70mm | 1.00mm | 1.30mm | 1.70mm | |||||||||
- The Piper intake timing still does not look right. should it be -18?