OST-039: The end of the beginning....

[oldeskewltoy]

from another forum Wrote:Dude,


It will be interesting to see the before and after flow-rate comparisons.

.

Yes it would.... and so I've re-calibrated the bench....




then I fitted test valves and test springs... and put the head on the bench and got baseline numbers for intake, and exhaust






and the results....

exhaust:
.050" - 29.8 cfm
.100" - 62.4
.150" - 95.8
.200" - 112.2
.250" - 118.3
.300" - 121.3
.350" - 121.8


Intake:
.050" - 39.4
.100" - 79.8
.150" - 118.8
.200" - 150.2
.250" - 171.9
.300" - 177.8
.350" - 180.2



more to come........