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Originally Posted by CAT600
Fair enough, and i suppose this adds weight to what I was saying with respect to the same engine calibration being spread out across the whole 220kw engine run, and how in turn, some cast iron headed 220's have issues with pinging.
Daniel
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True, adding to that is the fact that in order for the cast heads to match the alloy's 220 they had to up the comp on the cast headed engines a fair whack too