Posts: 910
Location: Hastings, mn, 55033 | first things first...please post whether the speeds you are giving are from your graph or from a gps. my boat will run 40+mph on the graph but in reality its only doing 32-34 mph on the gps.
next thing is what kind of load are you carrying. my boat will get up to 35 or so on the gps if i'm by myself out panfishing. turn that into 3 guys, 3 musky boxes and a cooler and i'm lucky to hit 32!
there is a big difference between a 13 pitch prop and a 19 pitch prop, FIND OUT WHAT YOU HAVE. the higher the number the more top end speed you'll get, the lower the more out of the hole performance. pitch equates to the distance traveled forward for each revolution of the prop i.e. a 13 pitch will move you forward 13 inches for each revolution while a 19 will move you 19 inches with each revo.
your motor will also have a preffered rpm range and running the wrong prop could cause the engine to over rev at high speeds, so find out what you have!!
a tach is something thats almost a must have in a boat, really dont know why most dont come with them stock. a trim gauge is also a very nice thing to have as once you get figured where your optimum trim is for your boat, prop, load its easy to trim right back to that spot again, especially in a console boat where you cant just look over he transom to see where the motors sitting.
one other thing to remeber is to kind of figure a middle of the road of posted speeds others are attaining. often times guys do the same with how fast something goes as they do with how big their unit (lower i mean  is...can be some exaggeration there!!!
Edited by castmaster 9/9/2006 10:13 AM
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