When the results exceed the manufacturer's claimed flow #s, I question the flow bench's calibration.
This is why I don't count on flow numbers from other benches as being able to be directly compared to mine.
This isn't saying one bench or the other is more accurate than the other as much as pointing out that flow numbers gleaned from different sources can, and do differ.
I'm quite sure that the head tested at R&R and the one I tested would be much closer to each other than the two sets of numbers posted would indicate if they were tested on the same bench.
I mean, no one actually believes that two CNC ported heads are going to vary that much, right?
Do we know if the R&R test on the exhaust side is using a pipe or not?
And if so, what size?
