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-   -   1998 35' fountain top speeds (https://www.offshoreonly.com/forums/fountain/319338-1998-35-fountain-top-speeds.html)

Drew555 01-11-2015 02:24 PM


Originally Posted by 253 (Post 4247649)
No , you have way more than 350 HP. each engine if running 77 on gps w/ 4 people,,more like 425-450 hp each, an HP. 500 is 485hp,,, FIVEPTOHH , is running 496'S, and you are same as him on speed, what is compression on each now compared to leak down., and what brand props are you running, reworking the heads will help, and maybe the props need worked also.

I'm just guessing my hp. I have no clue. But the motors are milk duds anyway. The guy had 540 heads on this motor with no cause for them. I had broken comp. ring in one cylinder also. I know these motors are smoked. No crosshatching either. I'm running 28 bravo 4 blades. And I did run 77 in this condition. I have no reason to lie when I'm asking what it should do.

253 01-11-2015 08:15 PM

If your new engines are 580 hp you will probably be in the 83-84 range, good luck


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