|1U_1E|4 strokes | 1 | 1 | relative cam position is not exactly known to rusEFI, exact cam position does not really matter or could be even variable like VVT | | z |
|1E_1E|4 strokes | 1 | 1 | exact angles known to rusEFI (Neon 1995) | | z |
|2E_0|4 strokes| 2 | 0 | exact angles known to rusEFI (Miata NA) | | |