well some good news is I now have decent battery voltage. around 13.5. still having some fuel pressure issues. mainly in 2nd gear. My 1-2 shift is at 6300 and is fine but my 2-3 shift is at 5800 to keep enough fuel pressure and I haven't gone past 5800 in 3ed. I may order a new Bosch 044 or one of the 044 knockoff and see if it helps with that. I added about 5% to the trans 2-3 shift pressure table. it shifted but its really sluggish. added 2% more and is better. added another 2% but didn't get a chance to test it. I also added 20% TM into the tune for the 2-3 shift to help it out. Hopefully the new pump will get here before next Friday so I can install it and test it out at the track.

 

well sounds like you figured out the issue hope u get the new one in b4 hitting the track Gl dude

 

well Im hoping it works. Also, on my 2-3 shift, looking at my log, the rpms are rising in a linear fashion, at my set shift point the rpms jump from 5900-6300 then it shifts. I have my shift times zeroed out. now running 10% over stock trans pressure on the 2-3 and have 20% TM for the 2-3 shift.

 

I suspect your trans is not liking the power, it sounds like the RPM is flaring.

 

Maybe the TQ management at shifts will band aid it for now

 

yea, I may just set the rpm shift point around 5800 since it doesn't do it there. and my 3rd gear pulls very strong

 

Checked my trans fluid this morning. Looks a little high. Checked it after I got home from work, engine still running. but still red. It does have a slight burnt smell. Running the Supertech walmart fluid. Think it would help if I put something better in there? has about 15K miles on it.

 

I would just run whatever fuild it takes from GM, or the Dexron 6 since it is backwards compatable with all the previous auto trans.

 

Found an 04 4x4 4l80e with 125K miles for 250. going to go pick look at it next weekend and pick it up.

 

Nice. Where at?