Fuel flow through injectors?
Fuel flow through injectors?
(OP)
I am trying to find a way to calculate HP and BSFC by using the data from the injector fuel flow, EGT, and a good WBo2 sensor. Along with other data from the engine itself; Displacement, RPM, Valve timing etc.
Is it possible to accurately determine the actual injector fuel flow by fuel pressure, pulse width etc.?
Therefore, with a known amount of fuel entering, and a known A/FR (WBo2)(reasonable accuracy) =Volume of air. Add RPM = VE
Obviously the date could be input to a good engine sim program, with decent results. However, it would be nice to know some efficiency numbers when tuning EFI and Carbs.
Any input would be helpfull...
Thanks.
Is it possible to accurately determine the actual injector fuel flow by fuel pressure, pulse width etc.?
Therefore, with a known amount of fuel entering, and a known A/FR (WBo2)(reasonable accuracy) =Volume of air. Add RPM = VE
Obviously the date could be input to a good engine sim program, with decent results. However, it would be nice to know some efficiency numbers when tuning EFI and Carbs.
Any input would be helpfull...
Thanks.





RE: Fuel flow through injectors?
Q = ( Pulse Width - Offset ) * Static Flow rate
You will need an injector flow bench or access to someone elses data to get the static flow rate and offset.
RE: Fuel flow through injectors?
http://www.ecutek.com.au/delta-dash.htm
Available for your vehicle?
I have DeltaDash for my car and it outputs duty cycle in %, wouldnt that be able to be figured with flow rate of the injectors to provide exact volume of each injector opening event? DD also priveds various information on the intake air charge. (IE: temp, pressure, mass in grams) so you should be able to calc out your required results. (Of course the error in your calculations could be huge if the data isnt good. And I dont know how accurate the measured values are.
Nick
I love materials science!
RE: Fuel flow through injectors?
RE: Fuel flow through injectors?
RE: Fuel flow through injectors?