Boost Controller Tuning (top End Boost Drops) Hks Gtss Setup

[Marko R1]

hi guys,

my boost controller holds boost in the lower rev range well however when i get to top end revs the boost level seems to drop off to about 1.2bar.

ive got the blitz sdbc icolor (which is similar functionality to the id3) tuned @ 1.35bar.

there are 2 modes, MANU & AUTO...i have selected MANU, as per instruction booklet it is more accurate than AUTO.

anyway, my setup is HKS GTSS turbo's with tomei type a cams etc (325awkw).

under 'boost setup' i have the following settings:

set - 79

gain - 5

limiter - OFF

scramble time - OFF

ultimately i am happy with the mid range boost level but i want to pick up the tail end (i.e. top end boost), my thoughts was if i drop the GAIN i can then increase the SET (i.e. boost pressure).

as i understand the GAIN gives you a quicker response & also an overshooting boost if set too high.

any ideas? who is a guru with these EBC's?

anyone running similar turbines with similar boost controller? if so, what are your settings?

[Marko R1]

anybody have suggestions here on settings?

i think i'll get my mechanic to look at it

[Marko R1]

just spoke to my mechanic - i was too focused on my peak boost which is a split second spike.

he said i need to watch what boost it is holding when revving out...i kept turning down the the boost level to correct the spike.

all will be good now that i dont need to worry too much about boost spike