How lean is too lean?
04-24-2007, 09:28 AM
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How lean is too lean? My car was recently dyno tuned and is running at about 13.8 AFR. Is this a safe AFR for my car? I read some threads about this a few weeks ago, but can't get search to work right now.
04-24-2007, 09:54 AM
#2
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that may be a little too lean...
normally they say to shoot for 12.5 to 12.8
normally they say to shoot for 12.5 to 12.8
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
04-24-2007, 10:04 AM
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Yeah, you will actually lose power running too lean. Depending on the car, most make peak power anywhere from 12.2 to 13.2, with a majority in the 12.5 to 12.8 range mentioned above.