Help with OFT Logs

[FirestormFlex]

I'm very new to tuning but trying to learn all I can. I've been running the OFT Stage 2 UEL tune for a while now. After reading for a while I decided to take a look at and log some different parameters.

When I first began, IAM was right at 1 and it stayed there for 20 miles or so. All of a sudden I noticed that it was down at .8, and FLKC was moving around a bit. Generally not more than -1, but a couple of times as low as -3. I played around with varying loads/rpms and found the most adjustment happening in 6th gear at RPMs under 4000. At this point I wasn't logging anything yet.

I decided to save some logs, but by then the IAM was starting to move back up. I wasn't sure exactly what to log so I logged a couple of different situations.

This was a partial throttle pull in 2nd gear:

http://datazap.me/u/gordonfalcetti/2...ta=1-3-4-10-11


WOT highway merge:

http://datazap.me/u/gordonfalcetti/h...data=1-3-10-11


And a 4-5-6 gear highway pull

http://datazap.me/u/gordonfalcetti/4...ta=1-2-4-11-12


I don't know a lot about this yet, but I think I'm getting some knock, can anybody help me help me interpret this stuff a bit? What would have made my IAM drop to .7 over a period of a few minutes, and then push back up to 1 and be fine (it's back at 1 now and has been for 10 miles or so). Anything in the tune that could/should be adjusted for safety and/or more power?

Thanks in advance.

[steve99]

Originally Posted by FirestormFlex

I'm very new to tuning but trying to learn all I can. I've been running the OFT Stage 2 UEL tune for a while now. After reading for a while I decided to take a look at and log some different parameters.

When I first began, IAM was right at 1 and it stayed there for 20 miles or so. All of a sudden I noticed that it was down at .8, and FLKC was moving around a bit. Generally not more than -1, but a couple of times as low as -3. I played around with varying loads/rpms and found the most adjustment happening in 6th gear at RPMs under 4000. At this point I wasn't logging anything yet.

I decided to save some logs, but by then the IAM was starting to move back up. I wasn't sure exactly what to log so I logged a couple of different situations.

This was a partial throttle pull in 2nd gear:

http://datazap.me/u/gordonfalcetti/2...ta=1-3-4-10-11


WOT highway merge:

http://datazap.me/u/gordonfalcetti/h...data=1-3-10-11


And a 4-5-6 gear highway pull

http://datazap.me/u/gordonfalcetti/4...ta=1-2-4-11-12


I don't know a lot about this yet, but I think I'm getting some knock, can anybody help me help me interpret this stuff a bit? What would have made my IAM drop to .7 over a period of a few minutes, and then push back up to 1 and be fine (it's back at 1 now and has been for 10 miles or so). Anything in the tune that could/should be adjusted for safety and/or more power?

Thanks in advance.

minor Knock in a small rpm\load range will cause short duration drops in iam. Are you running correct fuel for tune, also try different brands of fuel some are better than others

you look like your running fairly rich which is safe, but will cost a bit of power, your pegged at 11.2 afr limit of sensor at wot should be arround 11.7, to correct that will need maf scaling

see links below

[FirestormFlex]

Thanks for your help here. I'm using Shell 93 octane, which is known to be good fuel around here (CT) I'll try switching brands though and see how things look.

I'm not sure I'm ready to scale my MAF just yet - even with the tool from VGI it seems a little over my head still. I think it may be easier to wrap my head around once I actually log some more data and actually run through the process step by step though.

Thanks again.