boating season is over , time to repower
09-11-2015, 04:57 PM
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boating season is over , time to repower
so now that boating season is over I am interested in winter projects . last year I bought a twin step gun ( beautiful boat ) love the boat BUT not 100 % happy with performance .
so I have done a lot of research and figured out my boat needs some engine mods to make the best use out of the 540ci motors in the boat .
engines are 540 ci with 500 hp efi intakes , MAJOR air flow restriction . The engine builders I have talked to in the boat world have said the same thing change intakes .
WOULD you change away from the efi and go to a carb setup ? LIKE Ritchie Zul and chief
or modify a 525 intake and keep the efi ? or go to a single plane intake with a single throttle body and use a aftermarket EFI .
MY thoughts are remove the EFI and keep it for the next owner of the boat and put a carb on it and GO ! I have a lot of experience with carb's and like the fact that I can work on them easier than efi .
ANOTHER modification I am going to do is extension boxes .
I do see the ITS setup's for sale on here for a reasonable price BUT my boat has a polished steering already and looks real nice .
has anybody had any experience with what boxes they have used on a cig ?
so I have done a lot of research and figured out my boat needs some engine mods to make the best use out of the 540ci motors in the boat .
engines are 540 ci with 500 hp efi intakes , MAJOR air flow restriction . The engine builders I have talked to in the boat world have said the same thing change intakes .
WOULD you change away from the efi and go to a carb setup ? LIKE Ritchie Zul and chief
or modify a 525 intake and keep the efi ? or go to a single plane intake with a single throttle body and use a aftermarket EFI .
MY thoughts are remove the EFI and keep it for the next owner of the boat and put a carb on it and GO ! I have a lot of experience with carb's and like the fact that I can work on them easier than efi .
ANOTHER modification I am going to do is extension boxes .
I do see the ITS setup's for sale on here for a reasonable price BUT my boat has a polished steering already and looks real nice .
has anybody had any experience with what boxes they have used on a cig ?
09-11-2015, 06:05 PM
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It isn't my money, but if you are looking for noticeable performance, I'd throw a set of whipples and a new set of props on it and not worry about boxes or ITS. That should push you into the low hunnerds with EFI. Anything else will get you a few more mph, but not enough to notice a big difference, given the other boats you run with.
09-13-2015, 01:01 PM
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It isn't my money, but if you are looking for noticeable performance, I'd throw a set of whipples and a new set of props on it and not worry about boxes or ITS. That should push you into the low hunnerds with EFI. Anything else will get you a few more mph, but not enough to notice a big difference, given the other boats you run with.
09-14-2015, 10:11 AM
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Talk to Ron Potter. He builds a lot of 540 / 604 EFI engines.
http://www.potterperformance.com/ENGINES.html
My next engines will be Potter 800/850 EFI naturally aspirated. They are beasts.
http://www.potterperformance.com/ENGINES.html
My next engines will be Potter 800/850 EFI naturally aspirated. They are beasts.
