proper A/F ratio
05-09-04, 05:56 PM
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Join Date: May 2001
Location: Calgary Alberta Canada
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Depends on the boost,the density of the charge(heat), loading blah blah blah but...
from 0-8 psi I run in the low 11's, from 8 up I step down into the 10's, and work it down to 10.3-10.5:1 as I edge over 12 psi. You can never really be sure of what gas is coming out the pump , so I always go pretty rich for safety margin, and as load goes up you need to go richer in order ward off detonation, what I mean by that is when you might not detonate loading the car at 12 psi at 3000 rpm in 3rd, but load it in 5th and try it, and fuel is only half the equation there as well..max
from 0-8 psi I run in the low 11's, from 8 up I step down into the 10's, and work it down to 10.3-10.5:1 as I edge over 12 psi. You can never really be sure of what gas is coming out the pump , so I always go pretty rich for safety margin, and as load goes up you need to go richer in order ward off detonation, what I mean by that is when you might not detonate loading the car at 12 psi at 3000 rpm in 3rd, but load it in 5th and try it, and fuel is only half the equation there as well..max
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