ok , ive asked this beforebut i have a bad memory, what values should i be watching and what are good #s for them, i just want to give nelson the best info i can get him for tuning since i cant drive to his shop/dyno . I know the tuners want knock retard, long/short term fuel trims, and O2volts, (mine right now are B1-950,B2-940) I THINK THATS WHY IM GETTING RICH CODES PO172/P0175. and also IATs. what should i be writing down and what #s are ideal? THANKS.
07 SILVERADO CLASSIC 2500 HD 4x4 CREW CAB LT3 DURAMAX LBZ/ALLISON 6 SPEED 5'' MBRP Turbo back exhaust 6'' TIP /NO CAT- NO MUFF/ AFE Intake/ EDGE HOT JUICE /MERCHANT AUTO STG III Built Allison/P I ConverterTTS Twin Lift Pumps. Tierod sleeves/Cognito braces.17x9 Moto metals_______ Old Truck ,04 Z-71/Turbocharged,/cam/stall/Zippy Built TRANS/Nelson Tuned------
IATs are going to greatly differ depending on where you live, look for -5 to +5 on the trims, thats good for stock, but on Allens tunes let him get away with no worse than +/- 1. lol! j/k You could see them differ by +/-3 on extreme days either way. You want to log timing advance and retard, STFT and LFTF, i would also log the idle trims (STIT, LTIT gear, LTIT P/N), maf hz & dynamic airflow (so he can check out the MAF).
hope this helps,
Chris
2009 Silverado, HPTuners, all stock.
I like to see anywhere from 0 to -5,I would rather not have any + LTrims,and ALL of my Ltrims are from -1 to -6
<div class='quotetop'>QUOTE(chrisj6 @ Jan 18 2006, 09:06 PM) [snapback]41433[/snapback]</div>thanks, these trims are at W.O.T. right? also chris, you have the interceptor gauge, can you only record 2 values at a time? thats all i could record, i thought it recorded eveything after 50% throttle, but i still love the gauge! thanksfor the replys guys.IATs are going to greatly differ depending on where you live, look for -5 to +5 on the trims, thats good for stock, but on Allens tunes let him get away with no worse than +/- 1. lol! j/k You could see them differ by +/-3 on extreme days either way. You want to log timing advance and retard, STFT and LFTF, i would also log the idle trims (STIT, LTIT gear, LTIT P/N), maf hz & dynamic airflow (so he can check out the MAF).
hope this helps,
Chris
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My Ltrims are all below 0 where I want them in all cells at every throttle angle.I do not want any values over 0 so they are where I want them now.940-950 O2 V's is alittle to high but Allen will know exactly what needs to be logged,if you are goin to see him I would imgaine he will be doin a street tune also but just for the info be sure to log MAP,LTrims,RPM but those are only a few.
Actually I dont have the guage, I use HPtuners for all my values.
Chris
2009 Silverado, HPTuners, all stock.
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