Prop for a heavy load

[ironnutts]

Hi I currently have a 99 sea ray 190 cubby cabin with a merc 4.3l v6 with alpha 1 drive and the stock prop. I recently added a bait tank on the back of my boat. It seems to make the boat take off really slow. now 5 people, fishing gear, bait tank, full tank of gas 42gal. it takes almost a good 30sec to a min to plane. should i change the prop?

 

[Silvertip]

Re: Prop for a heavy load

Please read the very first post on this thread. Without some other data we can't possibly help. Not only might you need a prop change but you likely need trim tabs as well. You have an extremely stern-heavy boat.

 

[TilliamWe]

Re: Prop for a heavy load

ditto

 

[stevens]

Re: Prop for a heavy load

Maybe you would benefit from trim tabs, maybe from a 4 or 5 blade prop, maybe from a larger diameter prop, maybe from a vented prop, maybe from putting your boat on a diet, maybe from getting a bigger boat....

 

[ironnutts]

Re: Prop for a heavy load

well the thing is this is my first boat, and i got a deal that couldn't be passed up. A 99 sea ray 190 signature series cubby cabin with closed cooling system for 5000. The gel coat was beautiful, and it was used only in fresh water. the only thing wrong with it was the starter and alternator. the previous owner had it sit for 4 years with the drain plug on and no boat cover. So there was a water line the starter was in and the alternator. Rusted out. Im a auto mechanic so i took the two things to get rebuilt which costed me $250 and i had to flush out the tilt and trim fluid container bcuz it was milk. another $100 for new plugs, fluid, and etc. i gave it a wax job, and now this thing is worth at least $16,000 with trailer for free. and only 125hrs on the moter. i love fishing and always wanted a boat came across a deal of lifetime so thats why all the cargo for fishing. im telling you guys aint nothing like sitting on back of the boat and fishing for rock cod. went 3 times without the bait tank never had a problem until the i went with the bait tank install. the speedo would stay under 10mph WOT for like 30sec to a min.

 

[Silvertip]

Re: Prop for a heavy load

Again -- your info does us no good. We need to know what the wide open throttle rpm and speed (preferably GPS measured) is after the boat does get on plane and properly trimmed. We also need to know what the current prop pitch is and what the gear ratio of the outdrive is.