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05-25-2024, 01:24 PM
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#1 |
 Drives: 2013 Join Date: Mar 2016
Location: Qatar
Posts: 8
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Lambda Gauge
Hello everyone, i have a question regarding lambda gauge when i cruise usually its yellow lights and .95 to 1.0 when i speed the yellow lights turn green and reach to .70 or .71 is it normal or something wrong?
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05-25-2024, 04:48 PM
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#2 |
  Drives: 2015 Z/22 Join Date: Aug 2015
Location: Ontario, Canada
Posts: 937
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The engine will go into "power enrichment" at some point (based on throttle input, RPM's, etc.) which is basically just adding extra fuel for more power, cooling, etc. Every engine is different but 0.7 seems low, which is ~10.3 AFR, whereas from what I understand most engines "prefer" somewhere between 12 and 13 (0.82 - 0.88 lambda). But to answer the question, yes, it is normal to see a lower lambda when having fun.
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Overkill/Self Tuned; Mace Camshafts; K&N Typhoon Cold Air Intake; Ported 80mm Throttle Body/Intake Manifolds/Manifold Spacer; Solo Performance High-Flow Cats, Cat-back Exhaust; Vitesse Motorsports Throttle Controller; Elite Engineering E2 Catch Can; BC Racing BR Coilovers; JPSS Delrin Radius Rod Bushing Inserts, Sway Bars; Pegasus Aluminum Rear Cradle Bushings, Camber/Caster Plates; Z/28 Toe Links, Trailing Arms, Upper Control Arm Bushings, Rear Shock Mounts
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05-25-2024, 06:31 PM
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#3 |
 Drives: 2013 ZL1 Join Date: Sep 2021
Location: Virginia
Posts: 333
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If you have modifications a lower lambda (rich) under heavy load is much safer than running lean. As long as its running good and your plugs aren't fouling then your good.
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