Originally posted by warmonger:
Well, I"m not going to assign any numbers to it because I wouldn't know that without thorough testing. However, the cross sectional area of the SVT split ports, with the area of both ports added together, is significantly more than the cross sectional area of the oval port by itself.
Then if you add to it the fact that you can overbore it more if you wish and it will still retain structural integrity since it is aluminum, I think it makes it superior.
For NA motors this isn't necessarily what you are after, but for a turbo motor like his, the stock SVT split port can definitely flow more than the stock oval port if you base the comparison on constant pressure and square area of the ports. They aren't just a little bigger, they have like 20-30% more cross-sectional area.



A bigger hole is ofcourse gonna flow more air through... But how much air does the engine need? How much are you hurting the velocity when your overporting and how good is the fuel atomized?

3.0 14.392@97.237 2.302 60ft OEM 4-bolt LCA's $105 each Watch me go