SCAT Crankshafts was recently featured in a Chevy Hardcore article all about engine balancing! Gain some insight from Tom Lieb as he discusses the importance of crankshaft balancing to make your ride run smoother.
When an engine is running and the crankshaft is rotating, the connecting rod and piston assembly are reciprocating (traveling up and down). Balancing a crankshaft is a matter of managing rotational and reciprocating movement. Both directions of movement need to be considered when balance is determined. But, how is balance achieved?
Generally speaking, it is done by taking away or adding metal to the counterweights. But, to find balance, you need to know bobweight. The bobweights are actual weights that are attached to a crankshaft’s rod journals when balancing, to simulate the weight of the rod and piston assembly. With the bob weights in place, the crank is ready to be spun on a balancing machine. While there are simple formulas to calculate the amount of bobweight needed, there is a lot that these calculations fail to consider.
Read the rest of the article here.