datalogging 5.0

[onebadgsx]

What parameters should be checked when datalogging on the x3. Afr, spark adv, knock, rp. Anything thing else recommended? What would be the safe levels for these parameters? I know afr reads lambda which i don't know how to convert, how much spark is safe?

 

[Twinscrewgt]

The conversion is (v*2)+10

 

[Mishri]

what? my datalogging showed AFR 8.0 so 8.0*2+10= 26.. that can't be right...

 

[orgchem]

nm.

 

[Scott_0]

afr bank1, afr bank 2, etc angle_actual, knock sensor, lmbseb1, lmbseb2, load as a fraction, rpm, spark advance, and vehicle speed are PIDs Bama had me log recently. as said w/e reading you get for afr1 and afr2 will get multiplied by 14.079 that will be your a/f ratio

 

[Twinscrewgt]

what? my datalogging showed AFR 8.0 so 8.0*2+10= 26.. that can't be right...

Weird.. mine logs .87 which is 11.74.. exactly what my wideband shows.

 

[Scott_0]

he's either reading the wrong value or reading it wrong

 

[Tib02]

What is a good/safe area for the AFR to be in?

 

[Twinscrewgt]

From what I hear 12.5-12.8 na and 11.3-11.8 boosted

 

[onebadgsx]

n/a 12.4-12.5, blown 11.4-11.5

 

[DTony]

I just logged mine and the AF is 11.40 to 11.90 wot. Pretty conservative.

How do you interpret the knock readings. I get some during the shifts.

 

[fdjizm]

Chris posted some knock sensor data in this thread...

http://s197forum.com/forum/showthread.php?p=1046496#post1046496

 

[DTony]

Chris posted some knock sensor data in this thread...

http://s197forum.com/forum/showthread.php?p=1046496#post1046496

Thanks

 

[Scott_0]

I just logged mine and the AF is 11.40 to 11.90 wot. Pretty conservative.

How do you interpret the knock readings. I get some during the shifts.

is that a race tune? seems more like a performance tune which are generally richer.

 

[DTony]

is that a race tune? seems more like a performance tune which are generally richer.

No, just a 93 street tune.

 

[AMChrisRose]

Can you email me the log(s)? chris[dot]rose[at]americanmuscle[dot]com? The tune should be .840-.870, which it sounds like it is. That's common on our Performance and Street tunes. Shoot me over an email with your logs as well as first and last name and I'll take a look at the tune and maybe make some tweaks, if you'd like.

Chris Rose

 

[2011/5.0]

my afr at wot is .84/.86 so its 11.82/12.10 is that ok?
where is the timeing show? knock is 0 and 0

 

[AMChrisRose]

Your name is 2008gt, but I'm assuming we're still talking datalogging an 11 GT?

If so, .84-.86 lambda sounds good. Knock being at 0 is also really good, especially because it's hot out and everyone is getting knock, lately.

 

[2011/5.0]

yes it a 2011 5.0 auto,but im new to datalogging ,have knock value 0 max 0 not sure what the avg -.077,maybe i do have knock, the spark advance is value 33.0 max 48.5 avg 33.06,i think alot of us would like to datalog to make sure tunes are safe,but understanding the info is confusing,is there any info on how and exactly what PIDS to choose, and how to read it
thanks for the help.....and thanks for the xmas in july sale the ups mans going to be busy.... LOL

 

[AMChrisRose]

Hahaha! No problem.

Is this a Bama tune? 33 degrees is very high, and doesn't sound like one of our files. This is going WOT as in foot to the floor and not like 3/4 throttle, right?

No knock is good, .84-.86 lambda is good, 33 degrees of timing is aggressive. I'm really intrigued, as that should be knocking that back down quite a bit.

Chris