look at post 16 . he stated mid 80's with more left on a 575 boat

check it out

this is from someone who actually saw the boat run ..not just theorized on a computer

All I can report is what my cousin's runs. mid 70's with 525's. This boat was new last year. 5 blade Maximus props, sorry, don't have the pitch. When I ran her, I could only get 70 mph. These are numbers from the GPS nav unit mounted on the boat.

He knows a little about speed boats too running these for the past 10 years

i know brett from bblades very well we've discussed props on different boats extensively.. he sent me a set of un labbed maximus 5 blades to try on the 343 and we found that mine actually ran better with the bravo ones. as stated previously diff boats .. even with the same propulsion can vary quite a bit what i'd really like to try is a set of cnc 5 blades

sweet boat by the way

Ummm, are we really having an argument about a Cobalt? You can tell winter is here.


We had one here at the Tennessee River Rally last year. Good looking boat that ran very well. It had 525s and seemed to do just fine. It was the first one I had seen up close.

I have no idea about speeds. He started off strong but then hung back. I did not see him after the first card stop till the run was over.

good point :D

according to todays "someones been naughty in P1 " post 525's can dyno at 560 to 570 hp... hmmmm :cool-smiley-011:

32 bravo 4 blades labbed 5200 struggled to make 80 needed some more prop Dial in also a low water pickup (hull mounted) tended to starve for water at that speed