so I've been looking into porting my z6 head and I got to thinking- seeing that each valve in our heads has its own port (after the divider), would it be advantageous to work the port leading to the valve with the high rpm cam lobe more than the low-rpm side? That way, theoretically you would be able to keep decent port velocity at lower rpms, yet have it wide open on the vtec side for better overall flow at higher rpms.

Keep in mind this would be for street setups (ie-daily drivers) to keep overall driveability at all rpms.

Any thoughts?


Modified by stmotorsports at 1:00 AM 7/5/2004

 

sooo...?

anyone have any thoughts on this?

 

i do not think it would be benificial

also, you have your port modification in the opposite order if indeed it would actually work, you would want to increase the flow of the valve that gets the least lift to even out airflow between the two