Carnut1 wrote:GARY C wrote:Carnut1 wrote:20170730_201921.jpg Not a great pic but interested in feedback on this string and what it tells us. Thanks, Charlie
What did you learn from that?
I think it is interesting how the string shows where the air flows and sometimes the air turbulence. This was at .7" lift at about 217 cfm. You can see by the blurred pic that the string was moving up and down. Interested in what others think, Thanks, Charlie
I was just curious, from what I have seen with smoke and strings is that at slow air speed they are uniform and at high speed they are erratic, I have just never found any one that can tell me what in means in relation to what needs to be addressed on the head. Like wise for other apparatus like flow balls, modeling or CFD. They seem to be good to look at, it would just be nice to find someone that can actually tell you what your seeing.
I also tried an intake and head together with a carb, I used a flat spacer that only allowed air to pass through one barrel only and then I plumed in red die through the fuel jet to simulate fuel and air through an intake system, what it told me was that fuel goes every where and forms a river that snakes through the runner and over the short turn which I had already had observer by looking at the fuel stains from a dissembled engine.