[JBA87]

Finally was able to get a sub 3 second on jb4 map 2 in 93 octane .. I know the car has more (need to get my 0-20 down another .10th or so) .. I can never seem to get the car to launch down low well?



I wanna start messing with custom mapping ..maybe increase boost a little on the Lowe end vs map 2? Thoughts

Does anyone have any guidance on how to safely mess with the custom mapping .. 93 octane only (no boostane or other fuel mixtures)