Generally I put a feeder/riser where I think there might be a lot of shrinking. Either a lot more mass than whats next to it or lots of thin sections going in opposite directions (which is whats happening in this case)
Youre right, in the middle would be more logical but there is a small detail there that I dont want to lose.
To be honest the whole system might be terrible. Those feeders may or may not even be needed. The runner system and gates are probably the wrong size too! But I follow the guidelines and after the first pore I will learn a lot and go from there. I have very little experience in designing runner systems so its more good luck than good management.
This is what I have followed from the start. Its been good, it got the cylinder block first crack!
Yeah for sure. Long term the plan is to build the car and a long the way engine building can fund it.