I am familiar with the formula for the mean gas velocity =(d^2/dv^2)*Vm but I am having trouble finding a formula to calculate maximum intake port velocity. This will provide some aid in the study of high velocity airflow behaviour. A piston speed/cylinder pressure drop/valve opening formula...
Thanks Inhiding, this is just what I was looking for. My initial results using about 45% of bolt yield (fatigue limit) was giving me a rev limit of 10500rpm which seemed a little high. I had not considerd the bearing crush force, so I will add that. The big-end separation factor is the real...
I'm in the process of stroking my 4G63 from 2.0l into approx. 2.2l New billet steel crank, forged steel rods, uprated rod bolts, forged pistons. I'm going from a standard 88mm stroke to 94mm. I've gone to the extent recently of calculating the max force on the rods/rod bolts at TDC exhaust...
