vvt angle difference

[alchemis]

Hi guys,

i'm facing some minor issue here.
basically i'm on HKS turbo kit.
they are on EL headers and the engine sound supposed to be stable and not the UEL type.

recently my engine developed UEL exhaust note around 2000rpm to 3000 rpm.
only on 10 to 20% throttle. it gradually developed this issue, it's not related to any sort of tuning as i am using HKS flash editor and it's professionally tuned. no funny noise for half a year. then this

some say it's possible where the left bank and the right bank VVT engaging angle is having some mismatch. is there a way to calibrate it ? it's a little annoying

the engine is tested to be healthy pulling 310 RWHP from stock HKS setup.

[JIM THEO]

Originally Posted by alchemis

Hi guys,

i'm facing some minor issue here.
basically i'm on HKS turbo kit.
they are on EL headers and the engine sound supposed to be stable and not the UEL type.

recently my engine developed UEL exhaust note around 2000rpm to 3000 rpm.
only on 10 to 20% throttle. it gradually developed this issue, it's not related to any sort of tuning as i am using HKS flash editor and it's professionally tuned. no funny noise for half a year. then this

some say it's possible where the left bank and the right bank VVT engaging angle is having some mismatch. is there a way to calibrate it ? it's a little annoying

the engine is tested to be healthy pulling 310 RWHP from stock HKS setup.

There is always some angle difference between left and right VVT mainly at mid-high rpms or where you ask more timing than what is possible from your setup, oil thickness and quality plays also a role on this as VVT is mechanicaly controlled from oil flow!

[steve99]

You ill need a logging eevoce like ecutek brzedit or techstream to log emgone parameters


Such as vvt commamded and actual positions afr knock misfire counts and more