LTFT's should be as close to 0 as possible, although some say plus or minus 5 is acceptable. +10 means you are running lean.

 

the first I think two logs are on the tsp tune. I have 8 logs total. I think I lowered the hi octane table as well. He was running aroung 30* from tsp IIRC.

Actuallly there isnt any KR on log one. And dashboard B works fine on mine.

Nonnie I lowered the shift points for the time being since I couldnt get it off the limiter that day.

 

Is he still running a MAF? if so none of the logs you posted log the MAF... Also I like to see TP% in my logs... Did you add some % to the MAF table since you did not touch the VE table?

 

I agree and taking one step further jacking your commanded AFR under PE conditions to yield a desired OBSERVED AFR isn't best tuning practice. You should be able to mathmatically command XYZ AFR and see XYZ on the wideband. Creating a correct airmass model of your particular motor through the Ve and MAF table will yield a very close actual AFR to commanded AFR when in Pe (not to mention fuel trims very close to zero). If your VE and/or MAF is accurate then you can change the commanded AFR (Pe eq ratios) with confidence that your actual AFR (wideband) will equal commanded AFR and not some sort of compromised result. It takes time to dial in your Ve and Maf tables however the end result is very rewarding. Remember, if you alter your timing advance, more than likely, your airmass model has changed hence your fueling will change. They are all interlinked. Tuning is a process, not an event IMHO.

 

ttt. all this info will help me down the road when i get software..keep it coming.

 

im still running MAF...dunno bout anything else though.

 

Due to your cam (mainly LSA) he should have probably decrease the first three rows on your VE%... For example 1st row -20%, 2nd row -10%, 3rd row -5%, reason being your cam is not very efficient in the lower RPMS... A corresponding increase should be applied at the Peak (MAP reading i think)... Kinda hard to do without a wideband thou....

 

lsa...so the lower the lsa, the less efficient it is at lower rpms?

 

Actually it is the greater the overlap the less efficient it is at lower rpms... LSA contributes to the overlap...

 

Absolutely!! Couldnt have said it better myself. Having a wideband to go along with the tuning software whether its efilive, hptuners whatever is an absolute must have period.

The stock narrowband sensors cannot be relied upon to tune WOT at all and you will also find that moving the narrowband sensors farther away from the stock positions like when longtubes are installed that they are not even that accurate for using fuel trims to tune even part throttle.