I need expert advice on this Tune and Log

[98hc4mula]

I recently had to rebuild my engine bc the 5th and 7th piston ring lands broke off the piston bad. The engine builder said it was bc of heat and probably to much timing at WOT. Also maybe a lean condition.
I have the last WOT run and the current tune untouched since the accident. I want to make sure its safe to run before I granade my engine Again.
please make recommendations if I need to do some changes.

the thing that concerns me a little is that the AFR goes in the mid 15's on some spots and the timing at some points is in the 39* but I think that is ok at idle right.

I want to make sure the tune is safe for me to get on it and test out the new setup.
I changed the Torque Coverter from a 3600 to a 4000-4200 Circle D and a rebuilt engine 408 ci

[98hc4mula]

Anyone able to help

[wyochimneysweep]

if your running multi port maybe your two injectors are plugged?

[98hc4mula]

what do you mean multiport?
I am running Siemens 60 lbs injectors.
I also replaced the old stock fuel pump with a racetronix unit and hotwire kit.
does the tune seem ok though. I think it looks pretty normal but I dont know what may have caused the lean condition.
I will back up the PE table to about 11.8:1 AFR instead of the 12.8 I have now.
also Im not to worried about the timing Im running since its at 26-28* when at WOT.

[edcmat-l1]

WTF kinda MAF table is that? Since when do they have big dips in them?

Spark tables are pretty ugly. LO has just as much WOT timing as the HO.

[98hc4mula]

could you help me fix those issues Edcmat-l1? please....what do you recommend. I thought that you usually copy the High Spark tables to to low..that is what I did. I guess that is F up....
what about the maf, what should I do with it.
I tunned it and those dips were there bc of how those cells needed changes on the MAF and I did the smoothing function on it. I did not like how it came out but the book I was reading said that it may happen sometimes.
I would really love some help on this as to I dont want to risk it being crap.

[edcmat-l1]

could you help me fix those issues Edcmat-l1? please....what do you recommend. I thought that you usually copy the High Spark tables to to low..that is what I did. I guess that is F up....
what about the maf, what should I do with it.
I tunned it and those dips were there bc of how those cells needed changes on the MAF and I did the smoothing function on it. I did not like how it came out but the book I was reading said that it may happen sometimes.
I would really love some help on this as to I dont want to risk it being crap.

I don't know what book told you that there should be dips in the MAf table but that is wrong. It should be a smooth transition that continuosly increases. As airflow increases, so does the Hz. At no time should it go backwards, or even flat line. If you're trying to dial in the fueling with your MAf table, and you can't get the exact fueling you're looking for in a certain range, instead of getting the MAF all jacked, make up for the fueling in the PE table. Keep the MAF table linear and smooth.

On the spark tables, the LO is not the same as the HO. It is close, but down low it's different. Copying and pasting the hi to the lo, should only be done if you're running in speed density. Otherwise, I would suggest keeping the LO table several degrees lower than the HO in the higher load areas.