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Well, im not really trying to get more speed out of it as 42 seems to be the correct Max speed for this boat spec. I would like the prop to bring down my peak RPM and maintain the 42 mph... id be happy with that
Ok on my next outing i will have my other RPM gauge with me, as well as a GPS to get accurate numbers. Does an18P prop seem too low for my 17ft boat or am I too quick at blaming the prop?
No im not sure about its accuracy. It reads around 1200 @ idle, the sticker says it should be at 850 but if i bring it down that low it chugs and dies. This was its first time out since purchase. I do have a wire wound pickup type RPM gauge that i can verify against.
Searay 17 ft bowrider with a 1999 Mercury 115 2-stroke outboard,
A sticker on the engine shows the RPM limits to be 4750-5250, im getting 5500+ RPM with speedo showing 42mph, it would actually climb higher if not for the rev limiter. Im thinking the prop is underpitched? The stamping on my prop...
