Self tuners advice wanted. Lean wot issue

This is the car we're working with.

svo/svt said:

Perfect thank you very much. What's the thought on replacing the ba5000 with a 3500 and if I went with a stock maf would a factory 04 cobra one work. I would just like to understand.

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Resolution. A factory 90mm MAF is not ideal. I was referring to the 05+ slot meter in a 5" tube. We have made over 800rwhp with that arrangement. Beyond that the 3500 is a better choice.

Perfect just so happens I have a stock 05 slot my maf. It's from a gt though not a gt500

I did a little research and the gt maf if supposedly the same as the gt500. They just have different housings.

I tryed to take all of the issues out of my tune.
-04 cobra maf vale file added
-04 cobra spark table and fuel table added
-Normalized the y axis for the fuel table but not sure if it was done correctly.
went back and scaled the returnless fuel to run return style to the best of my ability at this point using the lasota book.
03steve do you mid taking another look at my tune before i try it out?

I have the dyno all to my self this weekend so I'm hoping to get the tune worked out before the next race.

So I must have something off. As I try to get the maf dialed in to richen the car up it goes in to a no start situation. I've tryed twice to get the maf dialed and once I get about 50% added to the maf no ones home.
Any suggestions?

You aren't using the MAF curve to add fuel are you? You want to adjust the MAF to have the wide band match the commanded fuel table. And use the commanded fuel table to run what you want in open loop.

Yeah I'm using the maf to adjust fuel to get it to match the base fuel table which is set to 1.0 . I'm using the wide band to monitor To get the maf close. When the afr to about 1.15 lambda I go and make an adjust to richen it slightly the car stops starting.

I compared the file that was first posted against the most recent file posted. All the injector battery compensation has been set to "1", the ECT sensor switch is turned off, it looks like some scaling has been done, fuel stoich point has been increased by roughly 5, and other things have been changed.

I looked back in the tune and fixed the ect switch and the injector batt comp ans engine stoich point. Mistakes all made by me staying up way o late trying to figure this out. Thank you 03steve for pointing these out.

Since i am running dual pumps off of a relay can the fuel pump voltage table be set to 15 across the board?