Ideal A/F ratio?
11-02-2003, 11:00 PM
#1
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Ideal A/F ratio? What is the ideal A/F for a N/A LS1? I just dynoed my car a couple days ago and my A/F got up around 15:1 at high rpms which, of course, caused it to have some KR. Just wondering what the perfect A/F should be? I've heard around 13:1. Thanks 
11-02-2003, 11:40 PM
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Originally Posted by Slowhawk
On my car I found that 13.3-1 gives the best dyno #'s,but 12.5-1 gave me the best track times.
13.3-1==117mph
12.5-1==120mph on the same day.
13.3-1==117mph
12.5-1==120mph on the same day.
11-03-2003, 07:52 AM
#4
I've hit 440+ on a low reading dyno,but my best track times dyno at 420hp.So I guess my Ram air setup needs more fuel added for road use.
15-1 will bring KR on the dyno which isn't that bad for a dyno since there is less load.The problem is that you might be pegging the KR on the street causing serious loss of power and could possibly cause engine damage.
15-1 will bring KR on the dyno which isn't that bad for a dyno since there is less load.The problem is that you might be pegging the KR on the street causing serious loss of power and could possibly cause engine damage.
