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SAFC and 720cc injectors?

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herostar

20+ Year Contributor
1,929
13
Jul 24, 2002
Denver, Colorado
I need bigger injectors. I've got a line on some 720's. I know that the safc is capable of going to -50, which is enough (more than enough) to compensate for the injectors, but I've heard some things about timing being affected along with other things when you have the afc set so far from zero. I would like some input about this. I know I need to go standalone, but the money isn't there right now.
 
Yes the more fuel you pull (-50% or whatever) the more the ecu will advance timing. Try sneaking more air through the MAF by taking out the honeycombs (bottom and sides) that way you reduce the need to lean out the AFC.
 
On second thought if you are maxing out your 680's with your 60-1 turbo then the 720's should be alright as far as correction % on the AFC. Thats only a 5% increase in flow rate.
 
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