Volumetric efficiency with new head?

[robbinsj]

This is posted toward Mike to answer but everybody jump in. What is the anticipated VE of an inline 6 with one of the FSPP or Southern Cross aluminum heads, slightly hotter cam, 1.6 rockers and headers? For that matter what is the estimated VE of a stock inline withnothing more than headers?
-Joey

 

[Anonymous]

The stock head is pretty bad. I would be surprised if it is over 70% stock.

The Southern Cross Alum SP head looks like you could reach 100% if everyhting was set up correctly (combo)

Or course, I turbocharge, so my V.E. is always over 100%