cubes i think ya missing some info on my motor /progress
i have a rb25de non vct head with performance springs at 90lbs i was told also been faced and ported.
i have gtr 444 injectors with resistor pak a kkr480 q45afm<= not fitted yet a bosch 910 and surge tank.
hoping for 400rwhp if i can make that with the emanage..?
as it was tuned last time at boost works
as a rb2030 yes a 20 head on a 30 block with vlt pistons no combustion chamber change just water jackets moved 3mm over to fit the 30 ... the problem i had is vlt pistons and rb20 head makes 180 psi cylinder pressure and add 12psi makes pistons fall apart espically after 380,000 ks old pistons made 150 ish and wasnts able to make any more due to rb20det afm neerly maxing out .. pluss 38 degree days didnt help
but my loss .. and ill start again