Changing Fuel Inj's and MAF on HR34 RB25DET NEO
Posted: Sat Sep 19, 2015 3:34 am
Hi everyone!
I has change fuel injectors from stock 370cc to 550cc (as fact only 505cc) and MAF to Z32 MAF. Now I trying to tune ECU for this changes.
Matt has helped to me to make initial changes in stock maps (file in attachment) and now I trying to complete this process.
Today I has found K constant value (480) on wich Long and Short fuel correction drift around 0% on Idle. Also I has changed Injector latency from 710 to 950 uSec, else Idle was not stable - with many misfires. But after cruise around 5 minutes on 3000rpm FTL has changed to -10% and recovered to 0% on Idle after 2-5 minutes.
What now?
Sorry for noob question...
I has change fuel injectors from stock 370cc to 550cc (as fact only 505cc) and MAF to Z32 MAF. Now I trying to tune ECU for this changes.
Matt has helped to me to make initial changes in stock maps (file in attachment) and now I trying to complete this process.
Today I has found K constant value (480) on wich Long and Short fuel correction drift around 0% on Idle. Also I has changed Injector latency from 710 to 950 uSec, else Idle was not stable - with many misfires. But after cruise around 5 minutes on 3000rpm FTL has changed to -10% and recovered to 0% on Idle after 2-5 minutes.
What now?
Sorry for noob question...