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You folks out there running a opti max 150 on a lund or a alumacraft or any other v-style boat 18', what prop are you running and what rpm's are you getting out of it? I have a 175 alumacraft and am just not getting the right rpm range out of it. the factory recomends a lazerII with a 19" pitch... they say that motor should run around 5720 rpms. Thanks for the help... I will be shopping for one as soon as i figure out what i need...
post your question to Walleye Central, bigger audience with that type boat, for curiosity what max rpm are you getting at current?
around 5000 with 1/2 tank of fuel and two people in boat speed is around 46mph.. it is a house prop from cabelas.... though if i bought a new boat would get a prop from merc. wasn't the case the house prop works fine but you would think they would know what works!!!
get minimum 10 hours on it before you made a final call, that engine double oils itself until then, at that time if you're trimmed out optimum (not necessarily maximum trim) and running 5000 rpms at full throttle that isn't ideal, a lugging big bore 2 stroke is potentially as harmful as over revving one, some boat companies specify props with a particular outboard, don't think alumacraft is one of them
called alumacraft and ther test boat had a tempest II 19 pitch and it ran 5750 rpms. iv'e got 40 hours on it and crappiexpress with the new bad a#$@ bass cat got me started in the right direction,, called another prop shop and also said the same thing. my prop is a little over pitched... think i will try the tempest but wait for a little more feed back.. thanks for the help