Cobra912
Active Member
geez sorry to see that sucks. What cam are you running again? I wonder if the stands are to blame.
hehe 4x4 otherwise car looks good
I also have a set of brand new AFR 205 heads with a new Super Victor intake. Everything else will be the same on the engine. So at some point I will go back to the dyno and see what I gained.
The awaited flow numbers of an AFR 205 flowed on a 4.030 bore at 28"
lift IN_205 EX_205
0.05 33.9 26.8
0.1 68.1 62.3
0.15 108 88.6
0.2 147 112.7
0.25 182.6 138.2
0.3 209.9 161.1
0.35 234.5 180.9
0.4 258.4 197.1
0.45 275.5 213.5
0.5 282.6 222.3
0.55 291.3 226.5
0.6 297.4 229.5
0.65 303.1 231.3
0.7 309.2 232.9
About what I expected as AFR flows on a 4.125 and gets about 330 out of the intake. I did not think 309 was bad for a 4" bore. I really wanted to try a 2.05" intake but the stems are 5/16 and my flow guy did not have a valve that size.
Scott
Very cool, man! I've seen numbers from a flow test of AFR 205s on a 4.030" bore before, and they were almost identical to yours. It wasn't flowed above .600", though, so it was cool to see that. Just goes to show how much bore size can affect flow numbers, there really is a shrouding effect with the cylinder wall.
Wow, the paint looks really good, man. Sorry to hear about the interior parts, though!
If you don't mind me asking, what port area did you use for the heads?