Formula 311 SR-1 540 HP ENgines PROP HELP
11-30-2010, 02:56 PM
#22
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Join Date: Apr 2006
Location: Lake St. Clair, Mi.
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I had a 1992 Formula 336 with slightly built 502/hp500s. I tried every prop the local mercruiser guy had. The 25 Mirage plus was the fastest at 72.4 mph at 5250 rpm. I lost a little top speed with hydro or bravo four blades, but gained mid range. That was about six years ago, so some of the newer props may be better. Good luck.
