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Discussion Starter #1 (Edited)
Can someone help me out with a/f ratio's for a boosted car? For example what is the range it should be at idle, slight acceleration, medium acceleration, and WOT?
 

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for N/A: 14.68:1 through all ranges

for boost: idle: 14.7:1 boost: depends, but ive seen anywhere from 11.5:1 through 12.8:1
 

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Seven said:
for N/A: 14.68:1 through all ranges

for boost: idle: 14.7:1 boost: depends, but ive seen anywhere from 11.5:1 through 12.8:1

11.5 would be ideal under boost

10.9-11.2 would be slightly better for long hwy pulls and drag racing
 

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Mr. Negative
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boosted:
idle: 14.7
over 50% throttle in the low 12's
70-100% throttle 11.5 - 11.8
 

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IS_Dude said:
boosted:
idle: 14.7
over 50% throttle in the low 12's
70-100% throttle 11.5 - 11.8

thanks for the info.
 

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phamous101 said:
14.7 would be too lean for WOT even for N/A applications
no, that is called the stoichiometric point, where the air and fuel mixture makes the most power on an N/A application on gasoline. When you change fuel types *meth, alc, nitrogen*, add boost, change to a much higher altitude, ect., that point then changes.
 
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