Spark plugs
Bosch/Denso/NGK/Champion heat range chart
| Denso | NGK | Champion | Bosch |
|---|---|---|---|
| 9 | 2 | 18 | 10 |
| 14 | 4 | 16,14 | 9 |
| 16 | 5 | 12,10 | 8 |
| 20 | 6 | 10,9 | 7,6 |
| 22 | 7 | 8,7 | 5 |
| 24 | 8 | 6,63,67 | 4 |
| 27 | 9 | 4,59 | 3 |
| 29 | 9.5 | 57 | |
| 31 | 10 | 55 | 2 |
| 32 | 10.5 | 53 | |
| 34 | 11 | ||
| 35 | 11.5 |
Injectors data
Table: Bosch, Ford, Denso and others
Archive by manufacturer
Injectors calulation
All results are estimations only. Real-world figures may vary.
Duty cycle is set to 80% for safety reasons.
Required injectors size
Injectors power
Injectors at different pressure
Piping size
0.4 Mach is the point at which air becomes turbulent and losses in efficiency start to occur exponentially. The key is to stay under that speed. You want to use the smallest piping possible that still flows enough to meet your needs. Larger than necessary piping increases lag time with no measurable gain.
Values are corrected to air temperature 40 deg C, humidity 60%, pressure 100 kPa
Results are estimations only. Real-world figures may vary.
Compression ratio
