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The Terminator
Engine/Tuning
Converting Lambda to A/F ratio and getting confused
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<blockquote data-quote="SVTXTC" data-source="post: 16807878" data-attributes="member: 163504"><p>AFR </p><p></p><p>14.64 to 15.2 accept</p><p>16's 17s cautious</p><p></p><p>Below 12</p><p>11's mid elevens good spot AFR</p><p></p><p>10s overly rich</p><p></p><p>9s and 8s bad rich</p><p></p><p></p><p>Just forget AFR all together. Lambda is always lambda. No conversion needed. .74 is fine if you’re in boost. Just a hair fat. 1.0 or higher is good for driving around part throttle. </p><p></p><p>In boost you should be in the .7 range no leaner than .78. .78 is ideal target for WOT</p><p></p><p>Never be alarmed at part throttle as long as car runs well. It could be as lean as 1.5 on deceleration and that’s fine. There’s are specific dfco tables for this to abound backfiring etc. Part throttle .9 to 1.0 is all good. </p><p></p><p></p><p>When you get into boost it should richen up almost instantaneously and anywhere from .72 to .78 is plenty safe. Avoid backfiring/ gurgling. Not abound. WOT at .80 or higher is a problem. Anything in .60s is way too fat. </p><p></p><p>Hope this helps</p></blockquote><p></p>
[QUOTE="SVTXTC, post: 16807878, member: 163504"] AFR 14.64 to 15.2 accept 16's 17s cautious Below 12 11's mid elevens good spot AFR 10s overly rich 9s and 8s bad rich Just forget AFR all together. Lambda is always lambda. No conversion needed. .74 is fine if you’re in boost. Just a hair fat. 1.0 or higher is good for driving around part throttle. In boost you should be in the .7 range no leaner than .78. .78 is ideal target for WOT Never be alarmed at part throttle as long as car runs well. It could be as lean as 1.5 on deceleration and that’s fine. There’s are specific dfco tables for this to abound backfiring etc. Part throttle .9 to 1.0 is all good. When you get into boost it should richen up almost instantaneously and anywhere from .72 to .78 is plenty safe. Avoid backfiring/ gurgling. Not abound. WOT at .80 or higher is a problem. Anything in .60s is way too fat. Hope this helps [/QUOTE]
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Engine/Tuning
Converting Lambda to A/F ratio and getting confused
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