Progression27 I/O Whippled Merc 525efi IMCO scx4
#33
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Hey my comment was in response to the prior two speed comments only. Personally I think Pro27 is to be commended for doing what I don't see often by the south shore guys putting his money where is mouth is an trying something different and for that I really hope his project has the desired result he's after. He knows though probably better then most there's a lot of chest thumping going on over there not based in fact and because I allowed myself to get caught up in that. I've learned to trust but verify and especially in this case with identical hulls if he cant pass me well we know something isn't quite factual unless I've got the GPS that needs calibration. Bottom line love his boat and his goal of a high horse power efficient reliable performance boat package exactly what I'm trying to do just with outboards.
Last edited by Omni Present; 11-08-2014 at 08:49 PM.
#34
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Hey my comment was in response to the prior two speed comments only. Personally I think Pro27 is to be commended for doing what I don't see often by the south shore guys putting his money where is mouth is an trying something different and for that I really hope his project has the desired result he's after. He knows though probably better then most there's a lot of chest thumping going on over there not based in fact and because I allowed myself to get caught up in that. I've learned to trust but verify and especially in this case with identical hulls if he cant pass me well we know something isn't quite factual unless I've got the GPS that needs calibration. Bottom line love his boat and his goal of a high horse power efficient reliable performance boat package exactly what I'm trying to do just with outboards.
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#36
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This may help alleviate some doubt, I see that it is a four blade propeller in the picture, the boat turns 5600 rpms @ 102 mph, well plug in the size of the prop, the slip is the big question mark, and see what the calculator determines, B Blades, Throttle-Up all have formula for determining slip, which may help in you in removing doubt about top-end speed, It is 100% conclusive, no, but if the calculator says 98.5, or 101, or 100, you know that his GPS is not that far off, I think a 1% margin of error would not be that bad.
Last edited by pro27; 11-09-2014 at 09:08 AM.
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Pro27, how many hours do you think you have dialing it in? Since you didn't dyno, how did you estimate your HP in your 11/6 post? Did you estimate based off the boost? If so, how much are you at? Last question, how long does it take you to get on plane? Your set up really interest me, but I have a short boating season where I'm located.
#40
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Pro27, how many hours do you think you have dialing it in? Since you didn't dyno, how did you estimate your HP in your 11/6 post? Did you estimate based off the boost? If so, how much are you at? Last question, how long does it take you to get on plane? Your set up really interest me, but I have a short boating season where I'm located.