500efi to a 750hp motor-speed increase?
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500efi to a 750hp motor-speed increase?
I'm thinking about swaping out my 500efi's for a motor with 750 hp & just wondering what everyone's opinion on what my speed increase would be? I have a 2001 Donzi 33zx. Thanks.
#2
I'm guessing your boats weighs about 11500 pounds and runs about 75 MPH with 940 HP (Twin 500 EFI's) Does this sound about right? Move up to 1500 HP (twin 750s) you should be looking at 95 give or take.
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Well I'm just a single engine, but I Whippled my HP500EFi to at least 750hp and have seen 14 mph. I think there is more, but I'm fine with it for now. My boat weighs 4500 lbs dry.
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