Hello. formula for stoichiometric calculation?

by **Jperfauto** » Tue Mar 31, 2020 9:30 am

can anyone help me with the calculation formula for stoichiometers?

by **Rager98** » Sun Jan 10, 2021 8:11 pm

hello
if you mean the afr= air-fuel ratio than its Air/Fuel=AFR
e.g. you got 70mg/stroke fuel and 1200mg/stroke air so the afr is 1200/70=17.14
hope it was the formula you looking for

by **Hansge89** » Sat Sep 03, 2022 8:58 pm

Use cylindervolume for a 1.9 litre 474ccm.
Divide atmospheric pressure by cylindrevolume, that usually gives a ratio of about 2.0xxx
Divide actual boost by the factor. That equals the airflow at max boost at the given atmospheric pressure. The divide the max airflow with current IQ for the boost level. There is your AFR :)