Calculators
Choose one of the categories below - Click on the Title to view the equation used.
Fuel pressure increase - injector flow rate
Volumetric Efficiency
Boost Manifold Pressure Absolute
Mass air flow conversion
Note that the injector "on" time rarely changes much with the increase of rpm's, it's a value mainly dependant on the desired AFR. The purpose of this calculator is for the use of mapping the mass air flow sensor to the injector "on" time. It is done at a low idle of around 1000rpm where the mass flow rate can be easily calculated, although not necessary.
Current, Resistance and Voltage
Capacitor charge current
Potential Divider
Parallel Plate Capacitor
MOSFET gate resistor calculator - minimum
Transformer Turns - Square Wave
Tube Internal Burst Pressure - Barlows - Metric
Tube Internal Burst Pressure - Barlow's - Imperial
Tube Internal Burst Pressure - Barlow's - Useful Hybrid
Internal Burst Pressure - Variation 2 - Imperial
Internal Burst Pressure - Variation 2 - Metric
Sectional Density - Imperial - lb/in²
Sectional Density - Metric - g/mm²
°C to K
K to °C
Velocity of Sound in Gas - Dry
For air at 20°C (293.15 Kelvin) the gas constant is 287.058 J kg‾¹ K‾¹ and the heat capacity ratio is about 1.4 as it's mostly diatomic, which from the calculator should give a velocity of 343.2 m/s
Air Density
Humid Air Density - not complete
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