Would someone please check my log file????

[Noob_Tuner]

Hi there,

New to the whole tuning world. I have been working with motorcycles my whole life, but don't have that much experience with cars.
I have a 2009 Charger SRT8, K&N Filter with the air box modified, and I have a catch can installed (homemade version). I have installed the 91 CAI tune, adjusted the fan settings, raised the shift poings, and reset the TCM adaptive points.
I would ask if soeone knowledgable could just have a quick look at my log file and tell me if the knock retard is OK, or if I should remove some timing?
This is a 0 - 60 run, in autostick with the computer controlling upshifts.
Thanks in advance.

[Noob_Tuner]

No one??????

[Quick]

file wouldn't open. try downloading it back onto your PC and opening it.

[Noob_Tuner]

Thanks for pointing that out to me Quick. I reupped it in zip format and it works now.....

[DGatzby1]

1st try to buy better gas and log it again. You are right it is knocking. You did 0-60 in about 5.4 sec, you really chirped them in the 1-2 shift, your close.

[Noob_Tuner]

Thanks for the reply DGatzby1.... I will try some different gas this weekend and log again, and then I will repost.

[fordomatic69]

That is a really good log for a canned tune. Only 3.0* on the ST Knock @ 2,273 RPM's. The SRT's like to knock but since you are only getting 3.0* for a very short period on a 0-60 run, damn that's pretty good. Some of the SRT guys would kill for a run like that. The 2* beginning @ 5,300 and it pretty much stays between 1-2* for the rest of the 0-60 run might be the best you'll get but you can try dumping in 5% more fuel and logging again. If the KR goes down but not to 0, try adding a bit more fuel in 2-3% increments. If you get above 10-12% additional fuel and the KR is still there, go back to 0% and you may have to begin to pull back timing in 1 degree increments. You are very close though so I doubt you should need to do too much tweaking. Looks like you got some good gas or the 2009's don't knock as much.

[Noob_Tuner]

Hi Fordomatic69.... Thanks for the reply.... Going to try what you suggested, and log again.... much appreciated.

[Noob_Tuner]

I did some more logging this evening.
I have attached the logs for 5%, 8%, and 10% fuel added across the low, med, and high RPM range. I have also included a log file for 3% fuel added plus MINUS 1* of timing across the low, med, and high range.
When removing timing do I noticed that there are two adjustments for each of the 3 RPM ranges for WOT Spark. Do I remove the same amount of timing from both adjustments, I think it's WOT Spark, and WOT MOT Spark, or something along those lines?
I did notice that I was able to get my 0 to 60 time down to 5.14. I should also mention that the car has less than 2000 kms on it.....
Once again, thanks for everyones help, it's much appreciated...

[Quick]

First off you might cut down on what you're logging. More parameters the slower the sample rate. How about just logging:
Actual Spark Cyl_1
Intake Air Temp
KNK LT Retard
KNK ST Retard
Engine Speed
Accelerator Pedal Pos %
and maybe ECT and Veh speed if you're interested.

I don't think you're interested in the others right now.

I think you should invest in a real catch can?

As to the log... Are you sure you're adding fuel instead of subtracting it? It kind of looks like the ST knk gets worse as you add fuel.
And ideally I think you'd want to test with IATs in the low 90s or below.
Second, I'd add fuel at least up through 15% or more before pulling a degree of timing? and, yes, if you adjust timing you should adjust it exactly the same in both places.

You should also try a run on the freeway. Maybe auto-stick down into 2nd and then WOT up into 3rd as far as you feel comfortable. or a standing start and up into 3rd as far as you want to go.

[Noob_Tuner]

Hi quick. Thanks for the reply. I am movig the slider to the RICHEN side on the predator. I will put the timing back to normal, and run more fuel, and cut down on what I'm logging... and I wil try going up to third gear... I will post the log as soon as I can.
Once again, thanks for the help.

[Quick]

This homemade catch can... You sould be catching 20 ml of oil every 1000 miles (1600 Km). are you?

Did you mention what tune you're running? and if you're sure it's good gas?

[Noob_Tuner]

This homemade catch can... You sould be catching 20 ml of oil every 1000 miles (1600 Km). are you?

Did you mention what tune you're running? and if you're sure it's good gas?

Hi Quick,

I just put the catch can on during the past week. I am running the 91OCT CAI tune, with shell gas.... Going to get gas tomorrow from Petro Can, or I might try some Sunoco 94.

I just did another couple of runs as per your suggestions.
Put timing back to stock and ran 4 passes up to third gear, 2 with 13% fuel across the board and 2 with 16% fuel aross the board. Noticed the retard came down quite a bit.

Thanks again... much appreciated

[DGatzby1]

Since you work on motorcycles you know the KISS Principal very well. Did you do the first step like you said you were going to do to my first post before you started to change all of your parameters in your car which does not really have any modifications beyond the CAI? The canned DS tune was very close to making your car right without many adjustments.

With the 16% fuel added your 0-60 is worse, your numbers from 50-70 and 50-80 are slower than anything I have logged in my car FYI and your RPM lines waiver, just don't look as smooth as the first log, I would find some good gas and leave the canned tunes alone.

OR if you really want to get it right, find the best gas (and you will only find the best gas by filling up and logging the ST knock) and get a CMR tune done on a dyno. But with that setup you may get another 10 hp over the canned tune when it is absolutely perfect.

[duster360]

With the 16% fuel added your 0-60 is worse, your numbers from 50-70 and 50-80 are slower than anything I have logged in my

Good observations. Simply trying to eliminate PCM induced KR doesn't always lead to optimum performance.

I think its short sighted foolishness to randomly add fuel when you have 0 data on the current A/F. Knock, misfires, and general poor performance will occur if A/F is too rich(<11:1).

A wideband 02 sensor should be considered mandatory to tuning in general.