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01-30-2007, 11:04 AM
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#1 (permalink) |
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In search of more boost!
  
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What parameters to datalog for a tuner?
Tom, this question is directed specifically to you. I know you have stated so in other threads, but I am creating this thread so that it can be stickied.
Exactly what parameters need to be datalogged in order for you to create a good baseline tune/rework an existing tune? I'm just as guilty as anyone for forgetting a parameter or two, so please remind us. Better yet, to help educate everyone, a brief explination of each parameter would be helpful.
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1999 Mercury Cougar - Turbo'd 3L. Status: Just hit 22.1 psi @ 60% duty cycle on boost controller. Power: 391.9 hp @ 6750 rpm | 374.2 lbs/ft. @ 4250 rpm | boost @ 11 psi For Sale: 19" Konig Verdicts with Toyo ProxesFZ4 225/35ZR19 Tires - $900 shipped! "There are times when I wish someone would implement facepunching over TCP/IP" - NorCalCoug |
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01-30-2007, 09:03 PM
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#2 (permalink) |
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NECO Member
Join Date: Feb 2003
Location: Central Texas
Posts: 776
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Re: What parameters to datalog for a tuner?
Wow. I suppose it depends on who is tuning. Some people thing they are clairvoyant or something (with a car...
 ) and some people claim they need everything.  -throttle position absolute -rpm -maf AD counts -airflow in #/min -load -open loop flag -imrc state (if imrc involved) -Long term fuel trim bank 1 -long term fuel trim bank 2 -Short term fuel trim bank 1 -short term fuel trim bank 2 -O2 sensor bank 1 forward (or upstream) -O2 sensor bank 2 upstream -coolant temp -intake charge temp -spark timing -knock sensor retard This is probably the basic list and covers most requests. There will be specific requests if an issue is detected.
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My project website Nautilus Performance We are now an authorized SCT Dealer![SIGPIC] |
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09-06-2007, 11:09 AM
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#3 (permalink) |
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Got turbine on my mind
 
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Re: What parameters to datalog for a tuner?
There are probably over twenty parameters that are useful when troubleshooting the A/F mixture for a tune. Unfortunately, the XCAL2 only logs up to 15 at a time. These are the fifteen that Tom told me he needed most.
Environment AIR_CHARGE_TEMP COOLANT_TEMP Fuel LTFT_BANK1 LTFT_BANK2 OPEN_LOOP_FLAG IMRC IMRC_CMNDED_FLG MAF AIRFLOW_#/MIN LOAD Misc RPM TP_ABSOLUTE O2 O2_B1_FRONT_V O2_B1_REAR_V O2_B2_FRONT_V O2_B2_REAR_V Spark SPARK_ADVANCE
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Roush Performance Suspension Nautilus Performance Big Brake Kit Nautilus Performance Turbo Kit ...with all the trimmings! :D Last edited by gamiller; 09-10-2007 at 06:42 PM. |
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09-07-2007, 01:28 AM
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#4 (permalink) | |
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NECO Member
Join Date: Jan 2004
Location: Fort Erie, ontario
Posts: 2,216
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Re: What parameters to datalog for a tuner?
Quote:
Id like to find out where and what is causing me to run so rich. So a description of the parameter's would be great!
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 MICH, 99 laser red Roush cougar MTX - Msds-Injen/GMK-magnaflow-ford racing-svt-Xcal2-b&g-kyb-tezzen-clarion-earthquake |
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