initial intake flow numbers for 3UR-FE

[SuperRunner]

Slapped the head on the bench this morning and got a nice surprise. I knew they would flow well, but they did a little better than my estimate.

I guess at .5" of lift, the heads would flow just under 300, I was going to say 298. I was a little on the low side.

Here they are:

.100" 122.7
.200" 208.3
.300" 264.7
.350" 289.2
.400" 305.1
.450" 315.8
.500" 320.1


This is exciting, I haven't even cleaned up the ports yet. I would say just a quick clean will increase flow by at least 5%

 

[SuperRunner]

Made a mistaked this morning on the flow numbers. I left the spark plug out. Anyway, updated with the proper numbers. Still impressive.
I also did a quick cleanup, and needless to say, Toyota did a dang good job, because I didn't gain much. In fact I lost just a tiny bit on the low lift. Like I said, QUICK cleanup. Probably need to spend another 30 minutes with the sand roll to make it proper.
lift before - after
.100" 105.6 - 104.9
.200" 191.0 - 190.8
.300" 254.0 - 257.3
.350" 273.6 - 279.3
.400" 286.2 - 295.3
.450" 293.8 - 305.7
.500" 299.0 - 310.4

 

[cribbj]

Impressive numbers!