A/F ratios, n/a vs. forced induction.
#1
Bullitt Member
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A/F ratios, n/a vs. forced induction.
So my question is pretty simple. I know a healthy AFR for forced induced vehicles is about 11.5:1 to 12.3:1 (ish), however is it higher at WOT on n/a cars? I'm N/A (besides for spray) and my new wideband reads about 12.9-13.4:1 at WOT. I thought I could of sworn I've read numerous sources say that n/a AFR's are higher at WOT.
Thanks,
Brandon
Thanks,
Brandon
#2
Legacy TMS Member
A/F on NA cars at WOT can be higher..... I've seen some around 12.9 to 13.1 and I would think that most tuners would think that's acceptable. Again this is on a NA car assuming you're using a quality fuel.
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Our local tuner mentioned that A/F ratios can be leaner (higher number) with an NA car. Forced induction needs to be richer. He dyno tuned mine to an average of 11.6:1 for my supercharger (WOT).
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