this is a fresh build so the tune is still very rough. the problem that i have run into that i can not figure out is that under slow acceleration it goes lean and the cylinder aimass drops too .02 causing it to surge badly. if i quickly rev the car it does fine and does not go lean. this is only while in gear. in neutral it will hold a consistent rpm above idle. i believe it is in the tune, i have messed with the ve table and transient fueling i can get the surge to lessen but not enough to drive without being unhappy. i posted my most recent tune, a driving/ idling log, and my scanner setup. if you have any ideas please let me know.
some information about the build. 4.8 ls gen 3 stock internals but cam and springs. ls6 intake. gt45 turbo. decapped truck injectors flow 75 pounds at 58psi. 3 bar map sensor
cam specs are 219 / 225 110.5LSA .595lift @50
Cam Timing @ .050 for Injection timing / phasing
Intake - BTDC .5 / ABDC 38.5 / Centerline 109 ATDC = Duration 219
Exhaust - BBDC 44.5 / ATDC .5 / Centerline 112 BTDC = Duration 225
118 go back to truck transient and bump 100 row by 20 percent.hpt99 made it around th eblock a bit happier. can barely push on the thrpttle..hplnewest vette chanel list with trans stuff.Channels.xmlcorvette tuning layout with trans.Layout.xml