- Mar 6, 2005
- 231
- 0
- 5,016
Hi
The engine is VR4 Cyclone
Cyclone is 200bhp right?
The RS 240 bhp and written Cyclone ECI Multi right ?
All is standard, except E3 intrcooler, Nissan RB fuel pump and 3" piping exhaust
When speeding, at high RPM there's sudden jerking and kind a brrp brrrp brrrp sound. (sorry..dunno how to xplain).
What the possible cause and what should i look for?
Is it bcos of standard ECU? No performance chip upgrade yet.
Is it bcos of fuel supply system ? Too rich or to lean...?
Is it bcos of airflow sensor?
Also need to know VR4 injectors cc...
Forgot everything about VR4 stuff. Helping a fren sorting out his wira VR4
thank u
The engine is VR4 Cyclone
Cyclone is 200bhp right?
The RS 240 bhp and written Cyclone ECI Multi right ?
All is standard, except E3 intrcooler, Nissan RB fuel pump and 3" piping exhaust
When speeding, at high RPM there's sudden jerking and kind a brrp brrrp brrrp sound. (sorry..dunno how to xplain).
What the possible cause and what should i look for?
Is it bcos of standard ECU? No performance chip upgrade yet.
Is it bcos of fuel supply system ? Too rich or to lean...?
Is it bcos of airflow sensor?
Also need to know VR4 injectors cc...
Forgot everything about VR4 stuff. Helping a fren sorting out his wira VR4
thank u