Put this app together over the weekend. Just looking for some feedback, good and bad. App has flow data for most of the pumps we use on the market and compares your flow demands to the pumps capacities. It can also compare multiple pumps to single/multiple pumps.

http://webpages.charter.net/hybrdthr...mp_web_app.htm

 

Well done man, it does look handy so I've bookmarked it. Graphs are always better than straight text.

A couple questions through, as I'm not sure I understand everything in it:
What's the Air to Fuel Ratio bit - is that the intended AFR at redline or at maximum boost?
What's BSFC? Could be handy to have that spelled out somewhere in the app.

 

When sizing up a fuel pump you are typically looking at peak horsepower. So you would enter all the information assuming you are at peak horsepower. So whatever your Air fuel will be at peak horsepower would be what you enter. For gasoline this typically might be ~11.8:1 and for e85 something closer to 7.9.

BSFC is the brake specific fuel consumption, this is a different and can be more accurate way of estimating pump requirements. This number represents the efficiency of the fuel and how much fuel is being wasted while generating the engines output horsepower. The lower the number the more efficient the engine is. If someone doesn't know what BSFC is they likely don't be using this feature anyway. Most people that know what it is don't often have an accurate value to put in the box anyway, this is often estimated.