Racing flow benches

polyjohn said

This raises another question?

Total flow against maximum flow.

The infamous 906 has less flow than a 452 at .600, but the 906 has a better area under the curve...

Horses for courses...

This backs up PBR’s quote, 200@300-lift...

Nice work @650 PRH ‘361’ seems a BIG number to me...

Click to expand...

And that right there is one flaw of the flow bench. What test pressures are we comparing. A port that looks good at a static 28 inches may suck at 40 inches. And it’s still static flow, at way less pressure drop than 40 inches. And there is no piston in the way at TDC where low lift occurs.

I’ve said it so many times I may have to make a video about it. Flow is a low priority when looking at a port.