i just ordered a tuner, and i mainly want to use it on an 07 ls4 in a gxp. im not new to tuning, I have a mildly mod'd 3800, but im totally new to the ls4. i searched the tune repository, but I didnt find too much. What kind of changes are people making outside of the obvious stuff (timing/trans/fuel)? in my s/c 3800, there was at least 25hp to be gained from a tune itself, anyone had any luck with the ls4?
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2006 GTO A4
230/242 .612/.612 114 LSA FTI L92 cam, PRC valve springs, Volant intake,3" Magnaflow custom exhaust, 160 t-stat, Powerbond underdrive pulley, Kooks 1 3/4 LTs, ported TB, 3600 Vigilante and offroad pipes.
I owe someone on here my old GTO tune - have to look for it. I'll look for my performance LS4 tune as well and post it for you, along with explanations of the changes. My only mod is a de-screened MAF.
Here is the tune I run the most lately on my 07 Monte SS. It gets better than stock MPG, is eminently driveable, and makes better power than stock according to the MAP (but I haven't dyno'd it.)
still have it?Originally Posted by LazMan
This thread is 12 years old.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
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