Is this log too lean??? Tuning Guru's please look
Nov 29, 2007, 07:28 PM
#36
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I would post this in the AEM EMS section. Looks like a lot of timing at low RPM but I'm not familiar with logging the AEM to say anything about knock voltage.
Last edited by cfdfireman1; Nov 29, 2007 at 09:40 PM.
Dec 18, 2007, 12:03 AM
#38
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Some new logs that look significantly leaner.
these logs are done in about 25 degrees of weather.
doesnt this seem to be kinda lean???
these logs are done in about 25 degrees of weather.
doesnt this seem to be kinda lean???
Dec 19, 2007, 09:27 AM
#42
11.7 - 11.8 is certainly not what I would call dangerously lean but at the same time it's also not conservative either. Normally I tune to 11.1 at redline. If your knock voltages are low and you feel that the car was tuned properly to begin with then your probably fine. Have you tried posting your logs in the AEM tuning thread?
I have my car's fueling tuned as follows but I'm on the stock turbo
transitioning from non boost 14.7 areas, to boost areas of the map I richen to around 12.50 (2500-3000 rpm)
full spoool and peak torque ~12.0 (4000 rpm 23-25psi)
mid range after full spool 11.5 (4500-6000)
richening to 11.1 at redline (6000-7800)
Different tuners have different tuning strategies, so the 17afr in your map may be ok since it's low load and the turbo is just starting to spool up. Personally I would not like to see anything leaner than 14.7 after going WOT.
I have my car's fueling tuned as follows but I'm on the stock turbo
transitioning from non boost 14.7 areas, to boost areas of the map I richen to around 12.50 (2500-3000 rpm)
full spoool and peak torque ~12.0 (4000 rpm 23-25psi)
mid range after full spool 11.5 (4500-6000)
richening to 11.1 at redline (6000-7800)
Different tuners have different tuning strategies, so the 17afr in your map may be ok since it's low load and the turbo is just starting to spool up. Personally I would not like to see anything leaner than 14.7 after going WOT.
Last edited by Mr. Evo IX; Dec 19, 2007 at 09:43 AM.
Dec 19, 2007, 10:02 AM
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11.7 - 11.8 is certainly not what I would call dangerously lean but at the same time it's also not conservative either. Normally I tune to 11.1 at redline. If your knock voltages are low and you feel that the car was tuned properly to begin with then your probably fine. Have you tried posting your logs in the AEM tuning thread?
I have my car's fueling tuned as follows but I'm on the stock turbo
transitioning from non boost 14.7 areas, to boost areas of the map I richen to around 12.50 (2500-3000 rpm)
full spoool and peak torque ~12.0 (4000 rpm 23-25psi)
mid range after full spool 11.5 (4500-6000)
richening to 11.1 at redline (6000-7800)
Different tuners have different tuning strategies, so the 17afr in your map may be ok since it's low load and the turbo is just starting to spool up. Personally I would not like to see anything leaner than 14.7 after going WOT.
I have my car's fueling tuned as follows but I'm on the stock turbo
transitioning from non boost 14.7 areas, to boost areas of the map I richen to around 12.50 (2500-3000 rpm)
full spoool and peak torque ~12.0 (4000 rpm 23-25psi)
mid range after full spool 11.5 (4500-6000)
richening to 11.1 at redline (6000-7800)
Different tuners have different tuning strategies, so the 17afr in your map may be ok since it's low load and the turbo is just starting to spool up. Personally I would not like to see anything leaner than 14.7 after going WOT.
Yeah I have tried posting in the AEM EMS forums and not really got much of a reply to my newer data loggs. I really am not getting very high knock sensor voltages so I guess it's fine. I guess I'm just paranoid because I've spent a lot of time and money on this car lol
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