Reply With Quotewhat is your wide open throttle rpm? find out what it should be, that's the only way to select a prop
Likes: 0
Thanks: 0
HaHa: 0
Slabmaster
2008 Mercury 115 prop size
Hey guys! I recently purchased a new to me sv1900 with a 4 stroke Mercury 115 on it. It came with a 14 pitch prop on it. To me, that doesnt seem like quite enough pitch.
Do any of you guys have one of these boats/motors that can add any feedback? The boat is no speed demon but I really havent ran it "hard" either. Im thinking that mid thirties is about all it is gonna do with this prop. If that is all it is gonna do regardless i am ok with that, just was wondering how the boat would respond with a different prop.
Thanks!
Sent from my iPhone using Tapatalk
Crappie Wall Hanger
what is your wide open throttle rpm? find out what it should be, that's the only way to select a prop
Slabmaster
The guy that does my engine work said it should be 5200-5800
I dont know if that is spot on but that is what he said. On the mercury prop selector it said this motor would be 5800-6400? My guy said that it sounded a little high?
Sent from my iPhone using Tapatalk
Crappie.com 2019 Man of Year, Supermod & Moderator of the Mechanics Forum
* Crappie.com Supporter
Do you have a tach? If not kinda peeing in the wind trying to get prop setup right. Most 4 stroke motors need to max around 6000 on top end. I would shot for 5800 one person and 5500 loaded for max performance. Stainless and aluminum are 2 different animals to play with.
Proud Member of Team Geezer
Charlie Weaver USN/ENC 1965-1979
Slabmaster
Yes, I do have a tach. Last weekend was the first time I have actually fished this boat. The next time out i will check and see what RPM's are at WOT.
Are 14 pitch props common place in a motor of this size?
Sent from my iPhone using Tapatalk
Crappie Wall Hanger
everything I'm finding for your 2008 is 6000 max, after finding your wot call power tech props, give all info and they will hook you up. I would buy a stainless
Slabmaster
OK Bassing_53, I will do that and update this thread. I would like to float it tomorrow but that may be wishful thinking. We will see.
Crappie.com 1K Star General
I have a 2015 115hp Mercury 4stroke on a 18'8" triton and I'm running a 20" Laser2 stainless prop at about 5700 RPM at WOT. I'm not sure if yours has the same gear ratio as mine so that could make a difference.
Crappie.com Legend
If you're talking about a Lund SV 1900, I had one with a Merc 225 on it. About 54 mph was top speed. You basically have half as much engine. The Lund boats weigh a lot more than their comparably sized competition. I bet the 115 needs a really low pitch prop to get it on plane.
Slabmaster
I'm sorry, it is a Sea Pro bay boat. I had read reviews on this boat before i purchased it and after test driving it the day i bought it I installed some trim tabs on it. The boat really responds well with the 12x12 tabs i put on it.
Sent from my iPhone using Tapatalk
