Prechamber Mod "Flame" Front
Prechamber Mod "Flame" Front
<<Could a heavily modded engine benefit from chamfered AND enlarged PC holes, common sense would say yes to me. In a carbeuretor, when you increase air volume, you need to change jets (as an example).>>
That was the whole statement. Now, as injected fuel volume is increased & more air introduced, would not the chamfered & enlarged PC holes allow for better HP numbers? Wouldn't the larger orifices do a more efficient job being calibrated to the volumes changes? Kind of like changing the jets to allow more fuel in a carbeuretor with more airflow?
<<A bell-mouth form will improve flow efficiency into any tube, its simply not cost-effective for a manufacturer to do that on a large scale production. Increasing flow efficiency is a good thing, increasing flow volume isn't (in this case).>>
OK, I think we are all in agreement of the chamfering, then. Cool. That means that air is going in & fuel-air/possible combustion is comming out is more efficient. Now, again, with more volume of air & fuel, would not the smaller holes be a restriction? Would not the larger diameter in this instance lead to better clearing of the prechamber? Would it also bring the velocities & atomization back to comperable to factory, but more volume & get the same effects with more efficient HP gains without the lag in fuel ejection from the prechamber that might raise the EGTs (biggest enemy of diesels as far as I understand?
Let's take a garden hose with a an old time brass twist nozzle as an example. at a certain pressure & volume of water, you get the spray pattern that you want & when you turn off the valve, the water stops immediately (theoretical circumstances, I know) . Now, turn up the volume to that nozzle & it increases the pressure comming out. Fuel may be more atomized, but when you turn off the valve, there would be a certain ammount drizzling out of the nozzle. Put to diesel applications, that drizzle would lead to higher EGT' & unburned fuel (black smoke which is undesireable due to HP out the tailpipe?
Not arguing, but trying to understand better.
Ed