Am I missing something here?
I decided to start some prep work on the E7TE heads I bought and noticed some wierd things.
Intake valve opening area standard = 1328mm2
Intake port area = 1400mm2
Exhaust valve opening area standard = 1114mm2
Exhaust port area = 800mm2
Now is it just me or does that exhaust port look like it has authority over the exhaust valve?
I know there are lots of flow bench figures out there, but I don't believe in flowing heads for optimal performance as it only deals with pressure drop and does not take into account turbulance, rarefaction, resulting reversion, etc. But I don't see the point in having a valve that opens more than the duct (exhaust port) it's serving.
I'm dropping in a better cam with 0.4409 net valve lift and the figures are going to even more skewed:
Intake valve openiing area new lift = 1589mm2
Exhaust valve opening area new lift = 1292mm2.
Go the Brisbane Lions