AU 6cyl STOCK Head Flow rates?

XCSEDAN · 05-12-2007, 10:07 PM

Hi,
just doing some research for a future project.
i was wondering if anyone know the flow rates for a stock 6cyl head???
also need valve sizes as well
i need an answer as soon as possible.
any help???
i figured this would be the place to ask!

Cheers ;)

FS5 · 05-12-2007, 11:49 PM

stock ,they flow around 350hp @ 500 thou .the one i had ported flowed 368hp @ 500 thou.
the valves they come with are pretty much as big as you can go.

JoesAu · 06-12-2007, 12:00 AM

yeah the valves are as big as you can go really, the exhaust side i think u can squeezw an extra half mm if that.

XCSEDAN · 06-12-2007, 01:25 AM

i ment the size of the actual valves, as in the diameter, 2" etc, just trying to run some desktop dyno's to see if i can find a reasonable package that works well. (no i dont use it to be acurate just to give me some ideas how certain packages work

)

has anyone got the flow rates for .100" .200" .300" .400" .500" .600" .700" etc i need both intake and exhaust in CFM.

thanks for the help so far guys ;) i really apreciate it

XCSEDAN · 07-12-2007, 02:57 PM

anyone?
just tryna keep the thread fresh ;)

JoesAu · 07-12-2007, 05:30 PM

Find Trick_xd on AFF send him Pm he knows!! He done the work on my head,

XCSEDAN · 07-12-2007, 09:05 PM

thanks mate