SR20VE head flow vs SR20DET head flow

[Yellow4g63]

I ran across this before but forgot about it. Then Jr_ss posted it again on Zilvia.

So I wanted to get the VVL head flowbenched, just to have some figures in hand and verify what I had been seeing on the web... The top numbers are the VE head and the bottom numbers are from a highport SR head.

Flow test was done on a completely stock SR20VE head. Machine used was a Superflow 600 test bench at 28" of H20 and low 80's temp.

SR20VE
Intake
Lift CFM
.050 49
.100 86.2
.150 122.6
.200 158.6
.250 192.5
.300 225
.350 249.2
.400 263.5
.450 272.9

Exhaust

Lift CFM
.050 46.5
.100 86
.150 118.5
.200 147
.250 171
.300 183.5
.350 188.8
.400 193
.450 196

For some added information, I've done some search on Highport heads and found these numbers...

intake test at 28in H2O, temp 88deg F
SR20DET
Lift CFM
.060 43.4
.080 60.7
.120 92.9
.180 134.5
.260 175.6
.340 192..3
.440 201.8
.460 202.3
.480 203.5
.500 203.6


exhaust test at 28in H2O, temp 95deg F

Lift CFM
.100 41.1
.140 75.0
.200 98.2
.240 106.5
.280 110.2
.360 113.0
.440 114.3
.480 114.7
.500 114.9