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Originally Posted by
SR20GTi-R
Ben you are close but these cranks are balanced a bit different.
On a V6/V8 the counterweights are used to offset the reciprocating weight from the bearings,rods,pistons etc. Not all the pistons/rods sit on the same plane, on a V6 its 3/3. In that case the counterweights are balanced to match/offset that of the moving components. We dont need to apply reciprocating weight for balancing because our rods/pistons move on the same plane.Yah that makes complete sense to me. That's what I get for reading too much V8 stuff.
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Originally Posted by
SR20GTi-R
We simply weigh all components and get them to equal weight.Well yah that's pretty typical regardless. Getting all the pistons/rods to weigh the same. Right?
But how much of that weight do you use when balancing the crank? How much of it do you strap to the journals? All of it? I would think that only the weight of the big end of the rod would be required for the bob weight right?