91.1 GPS, 35 Fountain 525's, anyone faster ?
04-01-2009, 05:18 PM
#31
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35 fountain
I don't think that's the case. My test sheet says 90 with 4b Bravos and that's what it runs with those props. On the website he claims 100+ on the newer 35's with the staggered set up, from what I see most do just that. Some may be a little quicker, some may fall a little short. The test sheets that I've seen on staggered 35's were right there, even a tick over.
No two "identical" boats are going to run the exact same speed. Build weight difference, Merc's HP variation of as much as 10%, and we all know any two sets of props can be a few MPH off, let alone conditions. I think they put a pretty fair number on the boats and if you match their test settings you should be able to run pretty much the same number. I just don't understand all the BS about all the outrageous speed claims, just not there.
No two "identical" boats are going to run the exact same speed. Build weight difference, Merc's HP variation of as much as 10%, and we all know any two sets of props can be a few MPH off, let alone conditions. I think they put a pretty fair number on the boats and if you match their test settings you should be able to run pretty much the same number. I just don't understand all the BS about all the outrageous speed claims, just not there.
04-01-2009, 05:55 PM
#32
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As you probably already know ,90% of the Fountains run their props inward. I run my props inward on my Mirage and it helped getting rid of the chinewalk considerably and picked up around 2 mph .With the props turning out was a dream for handling around the docks with shifters only.Turning inward I now have to use the throttles slightly.No biggie.
Don't know if the 525's ECM can be reflashed or not ,but I would stay with the stock tune , unless you always fill up on land where high octane is available at Chevron. I have a superchip tuner for my Mustang and I found no benefit when I tuned the car for 91+. The engine was built for 87 [ fast burn ] and it runs just as great as when I tuned for 91.Just my 0.02 .
Ps; my boat used to chinewalk pretty bad running on the delta pad only, turning the props inward allowed the stern to sink a tad ,so the chines can stabilize the hull better without using too much tab. Here's short clip showing a rock solid ride with the props turning in.
http://www.youtube.com/watch?v=l_axHfmDBw8
Last edited by spectras only; 04-01-2009 at 06:04 PM.
04-01-2009, 07:19 PM
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