WOT pull datalog...what do you think?

[MotoEclipse]

tell me what u think. i got a high of 6 degrees of knock at the end. car still isn't pulling as hard as i expected.. (230 secs is when i do the pull) but also look at my driving in the log. car seems to be running lean?

 

[Imback]

a wideband being logged normally helps

 

[DSM_munky_man]

For the lean part of the questino yes a wideband logged would help identify that, or numbers from your WB as you did the pull.

But just a general look over you pull shows a lot of knock starting at about 4200. Pull some timing for that to clean it up a bit.

 

[gofer]

You're not logging any WB so knowing the exact AFR is impossible, like ImBack mentioned. I can still tell you're going EXTREMELY lean because your front o2 sensor voltage is showing 0.84v, when typically at a 11:1 AFR it shows about a 0.94v reading.

So what are your mods to the car? From looking through your profile it appears you've got stock injectors, stock turbo... basically stock car. Your mods list also show that your using an "air/fuel gauge" which is what, a narrowband with no AFR being displayed? You've also got your anti-lag setup like a crazy person, running a 14b and going to 10* ATDC, where did you get the info to set this up?

 

[Imback]

It starts knocking at 4200 with only 12* of timing. Something is not right with that. Op more info would help.

Your knock sensor must be off cause at 11 you would have big problems.

 

[yukiz]

airflowper/rev is way off at idle, combined fuel trims .... are you sure you dialed in fuel settings correctly? like other said, get a wideband, i'd recommend LC1....

 

[MotoEclipse]

i dont have money for a WB right now. i don't use anti-lag so idk why its on. my cars an auto. its turned off now.

 

[Imback]

If you don't have money for a WB then don't try tuning your car. Unless you want a rod making a appearance.

 

[MotoEclipse]

can't i make it richer by making the maxoct lvls higher?


and can't i at least get a simple tune with my stock o2 sensor... i had a WB but it stopped working. and i kinda need my car to get to work to make money to buy another...

 

[gofer]

Its a lot cheaper to buy a new wideband for $200 then it is to try and guess your AFR's using a front o2 sensor, then blow the engine and spend $2000 for a rebuild.

It's your car so you can try and do what you want, but personally, I think its a bad idea.