would like a log reviewed if possible

[JuniorCruzer]

Thank you in advance for any help you all are able to give me. I have a custom tune in my car now from a perfomance shop.

The car in question is a 2004 Pontiac GTO M6 with the following additions.

Custom Cam
Ported TB and TB bypass
CAI
Long tube headers
new plug wires
Custom Tune

I have read a good amount of stuff about tuning the car, but it seems when cams are involved, that items such as LTFT and STFT might be different for proper operation.

I did not like what I was seeing in some of my scans, KR was OK, but LTFT and STFT was concnering me. Now I am pretty much a newbie, so maybe I just don't know what I am looking at.

Thank you in advance.



http://www.therythersonline.com/images/GTO/scan1.hpl
http://www.therythersonline.com/images/GTO/scan2.hpl

Jon

[S2H]

looking a lot lean by looking at LTFT+STFT
looking like you are out of injector too..102%
time to upgrade those


you got some knock at the top of your WOT pull...4* is what it shows..but the PCM usually only allows max of 4* at WOT....so you might actually be getting more knock than its showing...but its probably doing this because of being lean.

you have some pretty jaged o2 readings...not as smooth as they should be...possibly your longtubes are causing this sleepy o2 issue...you should try to find out what o2 is out that has a better heater in it...
I know for Camaro's its the Bosch #13111...but I dont know if your car uses the same o2's or not...usually this issue is cause by the location of the o2's being moved from stock because of the long tubes.


oh..and it looks like you need to learn how to shift quicker.....dam granny shiftin...looks like almost a full second inbetween letting off the throttle and getting back ino it...LOL

thats just the obvious things I see

[JuniorCruzer]

Wow, just learned how to use the playback feature on this thing, was trying to look at everything in the CSV file. So much nicer to see in graph form with all the info on it.

Yikes do I need injector, hard to believe for just cam and headers.

Yeah, Granny shifting, well I had my buddy in the car watching the laptop, so was trying not to slam him around to much, I'm a bit better then that at the track.

Thank you very much for the info, I will look into the 02 sensors.

So with that said. Would you mind offering some advice on how to tune this puppy?

Here is what I see as obvious

Need to fatten up the fuel.
-Not sure where or how to do this

Looks like could add some timing.
-should this be in the main timing table, or the low/high octane tables?

Just want to get this dialed in as much as possible.

Thanks for your help!!!!!

Jon

[xonelith]

Yikes do I need injector, hard to believe for just cam and headers.

Yup, I needed injectors and I drive a Grand Am (124 duty cycle)...LOL