Quote:
Originally Posted by cecaa850
N55 STG 1 - 1.221 cc/rev
B58 STG 1 - 1.299 cc/rev.
Disclaimer, I don't know if the pumps are different or if there's slightly more lift on the B58 pump drive lobe and the pumps are the same.
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Yup there is more cam lift on the B58 which corresponds to more fuel flow.