More Stupid Questions About Stuff I Have No Buisness Asking About

[theSLEEPER]

So... "Fast" injectors... I get a lot of run around asking about these...

I am just wondering basics of making them run and what the differences are.

Seems like to make it "fast" you have to increase the pressures all the way around... Spring pressures, opening up orfices, who knows what else... But I think the spring pressures on the nozzle valve are really important. If that pressure is higher, it seems like to have ICP reasonable, you'd have to advance SOI so that it would have time to overcome that pressure?

To make large nozzles idle without a lot of smoke, would you advance SOI and jack ICP up so that you get good atomization?