Somthing Strang ! With Turbo

[almzro3e]

Hi friends today am bringing somthing strang for all of you

as i posted before that i had aproblem with my rb25det like fuel cut

today i reprogramed the safc2 and set all values to 0 and before was -35

when i did this turbo start to spool 13psi in nutral am not moving just like ANTI LAG SYSTEM

and it cant continue to redline cutoff just reach till 500 rpm and hold

so guys is this ok or somthing wrong with it?

[Adriano]

I would do a diagnostic check of the standard computer, and check the ignition timing.

[r32sky_line]

Sounds like like your ignition timing is fully advanced.

[almzro3e]

Sounds like like your ignition timing is fully advanced.

hi dear but i don`t know i didn`t change anything just the safc2 sittings

from -35 to 0 and before it was runing 7psi with -10 all rpms on safc2 it was great

but then i rised the boost to 13psi then it start kicking like fuel cut when boost come

finally i changed the safc2 to 0 so do you think its auto advanced?

[Adriano]

Sounds like like your ignition timing is fully advanced.

Actually i would say the timing is very retarded, the base timiing may have been retarded when the SAFC was tuned to allow those -ve numbers without pinging, and now you have set them to zero.

[MBS206]

Adriano sounds on the money.

Retarded timing = combustion isn't complete when exhaust valve is opening, allowing the turbo to spool

[almzro3e]

Adriano sounds on the money.

Retarded timing = combustion isn't complete when exhaust valve is opening, allowing the turbo to spool

so dears do i need to change ecu? or cheek A/F ratios ? or git red of bleed valve?

[lingeringsoul]

so dears do i need to change ecu? or cheek A/F ratios ? or git red of bleed valve?

take it to a work shop to get it tuned?