im trying to figure how to work this contraption i think it might help me if i could see what you guys are changing on you 4.8's thanks

 

oh yeah in hptuners

 

Have you checked out the Tune Repository on HP Tuners website?

 

yea i did but i only found 1 for my truck and i would feel alot more comforable knowing that one of you guys made the tune

 

I have been at it with efi live for a couple weeks now. I have: added 4 degrees of timing, removed torque management, raised line pressure, shortened shift times and messed with the etc curve. There aren't any modified tunes for a 4.8 in their archives either. I don't know if I should have messed w/ any of that stuff, but it still runs. I have watched the knock retard while driving hard and it doesn't seem to be doing alot. I am wondering how long it will take me to get the truck running right if/when I change the cam. I don't know if that helps

 

where at in Okla you from..i have a EFI Live Custom OS speed density tune for a cammed 4.8

 

zero out the spark ECT table, spark IAT table, EGR spark correction table, and fuel mixture spark correction table, set your cat overtemp to disable, EGR disable..thats just some of the basics

 

I like my IAT spark correction table, especially in forced induction applications, but in NA applications it still has its uses, not a big fan of 0ing that one out.

ECT I generally leave it alone unless its fing with the #'s where my ECT would normally be ie if its pulling/adding timing at 200* and I've got a stock thermo in there I'd 0 out those columns but leave the rest the same.

 

I agree, i like to make my spark table aggressive, then let the IAT table pull the timing as IATs rise. I can run 16* of timing when the IATs are 60*, but when they are 120*, I cant. My IAT table can pull the 2* it needs to run without KR.

 

yes forced induction leave it..on mine its just at zero.. when i tune other vehicles i leave everything above 220 stock