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2003 zx225
I have a 2003 zx225 with 2003 225 hpdi. I have a 12 inch jack plate and prop to pad is about 1 3/4 inches. We are running a 26 pitch tempest plus, hole shot is amazing 2 people full tourney load we are hitting about 66.9mph with the rpm gauge reading about 6100. Water pressure is at about 28 psi at wide open throttle. Does this seem right? We tried lowering the motor to about 2 3/4 inches prop to pad and our top speed dropped to about 63mph.
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That's about average, or what most people get out of them. May be able to squeeze one or two more mph out of it with some prop work, but it's probably not worth it.